{"id":23536,"date":"2026-09-09T09:32:18","date_gmt":"2026-09-09T09:32:18","guid":{"rendered":"https:\/\/lead-pcb.com\/?p=23536"},"modified":"2026-10-21T07:57:23","modified_gmt":"2026-10-21T07:57:23","slug":"qfn-packages","status":"publish","type":"post","link":"https:\/\/lead-pcb.com\/ko\/blog\/qfn-packages\/","title":{"rendered":"QFN \ud328\ud0a4\uc9c0\ub780 \ubb34\uc5c7\uc778\uac00\uc694? PCB \uc124\uacc4 \ubc0f \uc870\ub9bd\uc744 \uc704\ud55c \uc2e4\uc6a9 \uac00\uc774\ub4dc"},"content":{"rendered":"<p class=\"wp-block-paragraph\">QFN \ud328\ud0a4\uc9c0\ub294 \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58\uc640 \ubb34\uc120 \ubaa8\ub4c8\ubd80\ud130 \uc13c\uc11c, \ub9c8\uc774\ud06c\ub85c\ucee8\ud2b8\ub864\ub7ec, \uc790\ub3d9\ucc28 \uc804\uc790 \uc7a5\uce58\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0 \ub2e4\uc591\ud55c \uc81c\ud488\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc791\uc740 \ud48b\ud504\ub9b0\ud2b8, \uc9e7\uc740 \uc804\uae30\uc801 \uacbd\ub85c, \ud6a8\uc728\uc801\uc778 \uc5f4 \uc804\ub2ec \ub355\ubd84\uc5d0 \ud06c\uae30\uac00 \ub354 \ud070 \ub9ac\ub4dc\ud615 \ud328\ud0a4\uc9c0\ub97c \ub300\uccb4\ud560 \ub9e4\ub825\uc801\uc778 \uc120\ud0dd\uc9c0\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uacf5\uac04\uc744 \uc808\uc57d\ud574 \uc8fc\ub294 \ud328\ud0a4\uc9c0 \ubc11\uba74\uc758 \uc5f0\uacb0\ubd80 \ub54c\ubb38\uc5d0 QFN \ud48b\ud504\ub9b0\ud2b8 \uc124\uacc4, \ub0a9\ub55c, \uac80\uc0ac\uc5d0\ub294 \ub354 \ub192\uc740 \uc815\ubc00\ub3c4\uac00 \uc694\uad6c\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub807\ub2e4\uba74 QFN \ud328\ud0a4\uc9c0\ub780 \ubb34\uc5c7\uc774\uba70, PCB \uc124\uacc4\uc790\ub294 \uc774\ub97c \uc0ac\uc6a9\ud558\uae30 \uc804\uc5d0 \ubb34\uc5c7\uc744 \uc54c\uc544\uc57c \ud560\uae4c\uc694? \uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 QFN\uc758 \uad6c\uc870, \uc77c\ubc18\uc801\uc778 \uc720\ud615, \uc7a5\uc810, \ud55c\uacc4, PCB \ub808\uc774\uc544\uc6c3 \uc694\uad6c \uc0ac\ud56d, \uc870\ub9bd \ubc29\ubc95, \uacb0\ud568 \ubc29\uc9c0 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>\ud575\uc2ec \uc694\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>QFN\uc740 Quad Flat No-Lead\uc758 \uc57d\uc790\uc785\ub2c8\ub2e4.<\/strong> \uc804\uae30 \ub2e8\uc790\ub294 \uc8fc\ub85c \ud328\ud0a4\uc9c0 \ub124 \uba74 \uac00\uc7a5\uc790\ub9ac\uc758 \ubc11\uba74\uc5d0 \ubc30\uce58\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\u201c\ub9ac\ub4dc \uc5c6\uc74c\u201d\uc740 \ud328\ud0a4\uc9c0\uc758 \ud615\ud0dc\ub97c \uc124\uba85\ud558\ub294 \ub9d0\uc774\uc9c0, \uc7ac\ub8cc \uaddc\uc815 \uc900\uc218 \uc5ec\ubd80\ub97c \ub73b\ud558\ub294 \ub9d0\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/strong> QFN\uc5d0\ub294 \ubc14\uae65\uc73c\ub85c \ub3cc\ucd9c\ub41c \uac08\ub9e4\uae30 \ub0a0\uac1c\ud615 \ub9ac\ub4dc\uac00 \uc5c6\uc2b5\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uace0 \ud574\uc11c \ubd80\ud488\uc774 \uc790\ub3d9\uc73c\ub85c \ubb34\uc5f0\uc774\uac70\ub098 RoHS\ub97c \uc900\uc218\ud55c\ub2e4\ub294 \ub73b\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub9ce\uc740 QFN\uc5d0\ub294 \uc911\uc559 \ub178\ucd9c \ud328\ub4dc\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/strong> \uc774 \ud328\ub4dc\ub294 \uc5f4\uc744 \uc804\ub2ec\ud558\uac70\ub098 \uc804\uae30\uc801\uc73c\ub85c \uc5f0\uacb0\ud558\uac70\ub098 \ub450 \uac00\uc9c0 \uc5ed\ud560\uc744 \ubaa8\ub450 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc811\uc9c0\uc5d0 \uc5f0\uacb0\ub41c\ub2e4\uace0 \ub2e8\uc815\ud558\uc9c0 \ub9d0\uace0 \ubd80\ud488 \ub370\uc774\ud130\uc2dc\ud2b8\ub97c \ud655\uc778\ud558\uc138\uc694.<\/li>\n\n\n\n<li><strong>\uc8fc\uc694 \uc7a5\uc810\uc740 \uc791\uc740 \ud06c\uae30, \ub0ae\uc740 \uae30\uc0dd \uc778\ub355\ud134\uc2a4, \uc6b0\uc218\ud55c \uc5f4 \uc131\ub2a5, \ud45c\uc900 \ud45c\uba74 \uc2e4\uc7a5 \uc870\ub9bd \uacf5\uc815\uacfc\uc758 \ud638\ud658\uc131\uc785\ub2c8\ub2e4.<\/strong><\/li>\n\n\n\n<li><strong>\uc8fc\uc694 \uacfc\uc81c\ub294 \uc228\uaca8\uc9c4 \uc194\ub354 \uc811\ud569\ubd80, \uc5c4\uaca9\ud55c \uacf5\uc815 \ud5c8\uc6a9 \uc624\ucc28, \uc5f4 \ud328\ub4dc\uc758 \ubcf4\uc774\ub4dc \ubc1c\uc0dd, \uc5b4\ub824\uc6b4 \uc7ac\uc791\uc5c5\uc785\ub2c8\ub2e4.<\/strong><\/li>\n\n\n\n<li><strong>\ud56d\uc0c1 \ubd80\ud488 \uc81c\uc870\uc5c5\uccb4\uac00 \uad8c\uc7a5\ud558\ub294 \ub79c\ub4dc \ud328\ud134\ubd80\ud130 \ud655\uc778\ud558\uc138\uc694.<\/strong> \uc77c\ubc18\uc801\uc778 QFN \uc124\uacc4 \uaddc\uce59\uc740 \uac80\ud1a0\uc5d0 \uc720\uc6a9\ud558\uc9c0\ub9cc, \ud328\ud0a4\uc9c0\ubcc4 \uce58\uc218\uc640 \uc9c0\uce68\uc744 \ub300\uc2e0\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QFN\uc740 <strong>Quad Flat No-Lead \ud328\ud0a4\uc9c0<\/strong>, \uc989 \ub192\uc774\uac00 \ub0ae\uc740 \ud45c\uba74 \uc2e4\uc7a5 \uc9d1\uc801 \ud68c\ub85c \ud328\ud0a4\uc9c0\uc785\ub2c8\ub2e4. \uce21\uba74\uc5d0\uc11c \uae38\uac8c \ubed7\uc740 \uae08\uc18d \ud540 \ub300\uc2e0, QFN\uc740 \ud328\ud0a4\uc9c0 \ubc11\uba74 \ub458\ub808\uc5d0 \ud3c9\ud3c9\ud55c \uae08\uc18d \ub2e8\uc790\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \ub2e8\uc790\ub4e4\uc740 PCB\uc758 \ub300\uc751 \uad6c\ub9ac \ud328\ub4dc\uc5d0 \uc9c1\uc811 \ub0a9\ub55c\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uc5b4 <strong>quad<\/strong> \ub294 \ub2e8\uc790\uac00 \ub124 \uba74\uc744 \ub530\ub77c \ubc30\uce58\ub418\uc5b4 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\uc640 \uad00\ub828\ub41c \ud328\ud0a4\uc9c0\uc778 DFN(Dual Flat No-Lead)\uc740 \uc11c\ub85c \ub9c8\uc8fc \ubcf4\ub294 \ub450 \uba74\uc5d0 \ub2e8\uc790\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QFN\uc740 \uc131\ud615\ub41c \ubab8\uccb4\uac00 \ubc18\ub3c4\uccb4 \ub2e4\uc774\ubcf4\ub2e4 \uc57d\uac04\ub9cc \ud074 \uc218 \uc788\uc5b4 \uce69 \uc2a4\ucf00\uc77c\uc5d0 \uac00\uae4c\uc6b4 \ud328\ud0a4\uc9c0\ub85c \uc124\uba85\ub418\uae30\ub3c4 \ud569\ub2c8\ub2e4. Analog Devices\ub294 \uad00\ub828 \ub9ac\ub4dc \ud504\ub808\uc784 \uce69 \uc2a4\ucf00\uc77c \ud328\ud0a4\uc9c0\ub97c \uad6c\ub9ac \ub9ac\ub4dc \ud504\ub808\uc784\uc744 \uae30\ubc18\uc73c\ub85c \uc81c\uc791\ud558\uace0, \ub458\ub808 \ud328\ub4dc\uc640 PCB\uc5d0 \ub0a9\ub55c\ub418\ub294 \ub178\ucd9c \ud328\ub4e4\uc744 \uac16\ucd98 \ud50c\ub77c\uc2a4\ud2f1 \ubd09\uc9c0\ud615 \ubb34\uc5f0 \ud328\ud0a4\uc9c0\ub85c \uc124\uba85\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uad6c\uc870\ub294 \ubcf4\ub4dc \uba74\uc801\uc744 \uc904\uc774\ub294 \ub3d9\uc2dc\uc5d0 \uc804\uae30\uc801\u00b7\uc5f4\uc801 \uacbd\ub85c\ub97c \uc9e7\uac8c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-package-3d-isometric-view.webp\" alt=\"QFN package 3D isometric view showing bottom perimeter contact pads and central exposed thermal pad\" class=\"wp-image-23538\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-package-3d-isometric-view.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-package-3d-isometric-view-300x225.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-package-3d-isometric-view-768x576.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-package-3d-isometric-view-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\uc5d0\ub294 \ud540\uc774 \uc788\ub098\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\uae30\uc801\uc73c\ub85c\ub294 \uadf8\ub807\uc9c0\ub9cc, \ubc14\uae65\uc73c\ub85c \ub3cc\ucd9c\ub41c \ub2e4\ub9ac \ud615\ud0dc\ub294 \uc544\ub2d9\ub2c8\ub2e4. \u201c\ud540\u201d\uc740 \ubc11\uba74\uc5d0 \uc788\ub294 \uae08\uc18d\ud654 \ub2e8\uc790 \ub610\ub294 \ub79c\ub4dc\ub97c \uac00\ub9ac\ud0a4\uba70, \ud328\ud0a4\uc9c0 \uac00\uc7a5\uc790\ub9ac\ub97c \ub530\ub77c \uc77c\ubd80\uac00 \ub4dc\ub7ec\ub098\uae30\ub3c4 \ud569\ub2c8\ub2e4. QFP \ub9ac\ub4dc\ucc98\ub7fc \ubc14\uae65\uc73c\ub85c \ubed7\uc9c0 \uc54a\uc73c\ubbc0\ub85c \ud328\ud0a4\uc9c0 \ud48b\ud504\ub9b0\ud2b8\uc640 \ub9ac\ub4dc \uc778\ub355\ud134\uc2a4\ub97c \uc904\uc5ec \uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \ubc11\uba74\uc758 \ub178\ucd9c \ud328\ub4dc\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 QFN \ud328\ud0a4\uc9c0\ub294 \ubc11\uba74 \uc911\uc559\uc5d0 \ud070 \uae08\uc18d \ud328\ub4dc\ub97c \uac16\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud328\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ubd88\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub178\ucd9c \ud328\ub4dc<\/li>\n\n\n\n<li>\ub178\ucd9c \ud328\ub4e4<\/li>\n\n\n\n<li>\uc5f4 \ud328\ub4dc<\/li>\n\n\n\n<li>\ub2e4\uc774 \uc811\ucc29 \ud328\ub4dc<\/li>\n\n\n\n<li>\uc811\uc9c0 \ud328\ub4dc<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ud328\ub4dc\ub294 \ub2e4\uc774 \ub610\ub294 \ub9ac\ub4dc \ud504\ub808\uc784\uc5d0\uc11c PCB\ub85c \uc9c1\uc811 \uc774\uc5b4\uc9c0\ub294 \uacbd\ub85c\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \ud574\ub2f9 PCB \ub79c\ub4dc\uc5d0 \uc62c\ubc14\ub974\uac8c \ub0a9\ub55c\ud558\uba74 \uc5f4\uc800\ud56d\uc744 \ub0ae\ucd94\uace0 \uc804\uae30\uc801 \uc811\uc9c0\ub97c \uac1c\uc120\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ud6c4 \uc5f4 \ube44\uc544\ub97c \ud1b5\ud574 \uc0c1\ub2e8 \ub808\uc774\uc5b4\uc5d0\uc11c \ub0b4\ubd80 \ub610\ub294 \ud558\ub2e8 \uad6c\ub9ac \ud50c\ub808\uc778\uc73c\ub85c \uc5f4\uc744 \uc804\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \ub178\ucd9c \ud328\ub4dc\uac00 <strong>\uc790\ub3d9\uc73c\ub85c \uc811\uc9c0 \uc5f0\uacb0\uc744 \uc758\ubbf8\ud558\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4<\/strong>. \uc18c\uc790\uc5d0 \ub530\ub77c \uc811\uc9c0, \uc804\uc6d0 \ub808\uc77c, \uc2a4\uc704\uce6d \ub178\ub4dc, \ub2e4\ub978 \uc2e0\ud638 \ub610\ub294 \uc5b4\ub5a4 \uc804\uae30\uc801 \ub124\ud2b8\uc5d0\ub3c4 \uc5f0\uacb0\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub370\uc774\ud130\uc2dc\ud2b8\uc758 \uc9c0\uce68\uc744 \uc815\ud655\ud788 \ub530\ub974\uc138\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\ub294 \uc5b4\ub5bb\uac8c \uad6c\uc131\ub418\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc640\uc774\uc5b4 \ubcf8\ub529 QFN\uc740 \ubcf4\ud1b5 \ub2e4\uc74c \ub2e4\uc12f \uac00\uc9c0 \uc8fc\uc694 \uc694\uc18c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\ubc18\ub3c4\uccb4 \ub2e4\uc774:<\/strong> \uc18c\uc790\uc758 \uae30\ub2a5\uc744 \uc218\ud589\ud558\ub294 \ud65c\uc131 \uc2e4\ub9ac\ucf58\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uad6c\ub9ac \ub9ac\ub4dc \ud504\ub808\uc784:<\/strong> \ub2e4\uc774\ub97c \uc9c0\uc9c0\ud558\uace0 \uc678\ubd80 \ub2e8\uc790\ub97c \ud615\uc131\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub2e4\uc774 \uc811\ucc29 \uc7ac\ub8cc:<\/strong> \ub2e4\uc774\ub97c \uc911\uc559 \ud328\ub4e4\uc5d0 \uc811\ucc29\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubcf8\ub529 \uc640\uc774\uc5b4:<\/strong> \ub2e4\uc774\uc758 \ud328\ub4dc\ub97c \ub9ac\ub4dc \ud504\ub808\uc784 \ub2e8\uc790\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubab0\ub4dc \ucef4\ud30c\uc6b4\ub4dc:<\/strong> \ub0b4\ubd80 \uad6c\uc870\ub97c \ubc00\ubd09\ud558\uace0 \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/cross-section-diagram.webp\" alt=\"Cross-section diagram of wire-bonded QFN package construction showing silicon die, lead frame, and bond wires\" class=\"wp-image-23539\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/cross-section-diagram.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/cross-section-diagram-300x225.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/cross-section-diagram-768x576.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/cross-section-diagram-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ubab0\ub529 \ud6c4\uc5d0\ub294 \ud1b1\uc9c8\uc774\ub098 \ud380\uce6d\uc73c\ub85c \ud328\ud0a4\uc9c0\ub97c \ubd84\ub9ac\ud569\ub2c8\ub2e4. \ucd5c\uc2e0 QFN \uc911 \uc77c\ubd80\ub294 \ubcf8\ub529 \uc640\uc774\uc5b4 \ub300\uc2e0 \uc194\ub354 \ubc94\ud504\ub098 \uad6c\ub9ac \ud544\ub7ec\uc640 \uac19\uc740 \ud50c\ub9bd\uce69 \uc5f0\uacb0 \ubc29\uc2dd\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uad6c\uc870\ub294 \ub0b4\ubd80 \uc804\uae30 \uacbd\ub85c\ub97c \ub354 \uc9e7\uac8c \ub9cc\ub4e4\uace0 \ub2e4\uc591\ud55c \uc131\ub2a5 \ub610\ub294 \ubc30\uc120 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc7a5\ub41c PCB\uc5d0\uc11c\ub294 \uc194\ub354 \uc811\ud569\ubd80\uac00 \uc8fc\ubcc0 \ub2e8\uc790\uc640 \ub178\ucd9c \ud328\ub4dc\ub97c \uae30\ud310\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c PCB\ub294 \ub2e8\uc21c\ud55c \uae30\uacc4\uc801 \uc9c0\uc9c0\uccb4\uac00 \uc544\ub2c8\ub77c \ud328\ud0a4\uc9c0 \uc5f4 \uad00\ub9ac \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubd80\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc77c\ubc18\uc801\uc778 QFN \ud328\ud0a4\uc9c0 \uc720\ud615<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QFN \uc6a9\uc5b4\ub294 \ubc18\ub3c4\uccb4 \uc81c\uc870\uc5c5\uccb4\ub9c8\ub2e4 \uc644\uc804\ud788 \uc77c\uad00\ub418\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ubd84\ub958\ub294 \uc77c\ubc18\uc801\uc778 \uad6c\uc870\uc640 \uae30\ub2a5\uc744 \uc124\uba85\ud558\uc9c0\ub9cc, \ud328\ud0a4\uc9c0 \ub3c4\uba74\uc774 \uac00\uc7a5 \uc815\ud655\ud55c \uae30\uc900\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud45c\uc900 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uc900 QFN\uc740 \ub124 \uba74 \ubaa8\ub450\uc5d0 \uc8fc\ubcc0 \ub2e8\uc790\uac00 \ud55c \uc904\uc529 \uc788\uc2b5\ub2c8\ub2e4. \uc911\uc559\uc5d0 \ub178\ucd9c \ud328\ub4dc\uac00 \ud3ec\ud568\ub420 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud615\uc2dd\uc740 \uc544\ub0a0\ub85c\uadf8 IC, \uc804\ub825 \uad00\ub9ac \uc7a5\uce58, \uc778\ud130\ud398\uc774\uc2a4 IC, RF \ubd80\ud488 \ubc0f \ub9c8\uc774\ud06c\ub85c\ucee8\ud2b8\ub864\ub7ec\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub178\ucd9c \ud328\ub4dc\uac00 \uc788\ub294 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub178\ucd9c \ud328\ub4dc\ud615 QFN\uc740 \uc5f4 \uc804\ub2ec, \uc804\uae30\uc801 \uc5f0\uacb0 \ub610\ub294 \ub450 \uac00\uc9c0 \ubaa8\ub450\ub97c \uc704\ud574 \ud328\ud0a4\uc9c0 \ubc11\uba74\uc5d0 \ub113\uc740 \ud328\ub4e4\uc744 \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub178\ucd9c \ud328\ub4dc\ub294 \ud754\ud788 \uc0ac\uc6a9\ub418\uc9c0\ub9cc \ud06c\uae30\uc640 \ub124\ud2b8 \uc5f0\uacb0\uc740 \uc81c\ud488\ub9c8\ub2e4 \ub2e4\ub985\ub2c8\ub2e4. \uc77c\ubd80 \uc7a5\uce58\ub294 \ub178\ucd9c \ud328\ub4dc\ub97c \uc5ec\ub7ec \uac1c \uc0ac\uc6a9\ud558\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uce21\uba74 \uc194\ub354 \uc811\ud569\ubd80\uac00 \ubcf4\uc774\ub294 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uc900 QFN\uc758 \uc194\ub354 \uc811\ud569\ubd80\ub294 \ub300\ubd80\ubd84 \ud328\ud0a4\uc9c0 \ubcf8\uccb4 \uc544\ub798\uc5d0 \uac00\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uce21\uba74 \uc194\ub354 \uc811\ud569\ubd80\uac00 \ubcf4\uc774\ub294 \uc124\uacc4\ub294 \ub2e8\uc790 \uac00\uc7a5\uc790\ub9ac\ub97c \ubcc0\uacbd\ud574 \uc194\ub354\uac00 \uce21\uba74\uc5d0 \ub208\uc5d0 \ubcf4\uc774\ub294 \ud544\ub81b\uc744 \ud615\uc131\ud558\ub3c4\ub85d \ud569\ub2c8\ub2e4. \uc774 \uad6c\uc870\ub294 \uc790\ub3d9 \uad11\ud559 \uac80\uc0ac\ub97c \uc9c0\uc6d0\ud558\uba70, \uc0dd\uc0b0 \uae30\uc900\uc5d0\uc11c \ub208\uc5d0 \ubcf4\uc774\ub294 \uc811\ud569\ubd80 \uc99d\uac70\ub97c \uc694\uad6c\ud558\ub294 \uacbd\uc6b0 \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud50c\ub9bd\uce69 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud50c\ub9bd\uce69 QFN\uc740 \uae30\uc874 \ubcf8\ub529 \uc640\uc774\uc5b4 \ub300\uc2e0 \ubc94\ud504\ub098 \ud544\ub7ec\ub97c \ud1b5\ud574 \ub2e4\uc774\ub97c \ub9ac\ub4dc \ud504\ub808\uc784\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \uc124\uacc4\uc5d0 \ub530\ub77c \uc0c1\ud638 \uc5f0\uacb0 \uacbd\ub85c \ub2e8\ucd95, \uc804\ub958 \ucc98\ub9ac \ub2a5\ub825 \ud5a5\uc0c1 \ub610\ub294 \ub2e4\ub978 \uc5f4 \uacbd\ub85c\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2e4\uc911 \ud589 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc911 \ud589 QFN\uc740 \ud328\ud0a4\uc9c0 \uc8fc\ubcc0\ubd80 \uc544\ub798\ub098 \uadfc\ucc98\uc5d0 \uc811\uc810 \uc5f4\uc744 \ub450 \uc904 \uc774\uc0c1 \ubc30\uce58\ud569\ub2c8\ub2e4. \uc194\ub354 \ubcfc\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uace0 \uc785\ucd9c\ub825 \ubc00\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc9c0\ub9cc, \ub2e8\uc77c \ud589 QFN\ubcf4\ub2e4 \ud48b\ud504\ub9b0\ud2b8 \uc124\uacc4, \ubc30\uc120, \uac80\uc0ac \ubc0f \uc870\ub9bd\uc774 \ubcf5\uc7a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc804\ub825\uc6a9 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\ub825\uc6a9 QFN \ud328\ud0a4\uc9c0\ub294 \uc804\ub825 \ubc18\ub3c4\uccb4\uc640 \uc804\ub825 \uad00\ub9ac IC\uc5d0 \ucd5c\uc801\ud654\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \ub300\ud615 \ub610\ub294 \ube44\ub300\uce6d \ud328\ub4dc, \uc5ec\ub7ec \uac1c\uc758 \ub178\ucd9c \uc601\uc5ed \ub610\ub294 \ub300\uc804\ub958 \uc5f0\uacb0\ubd80\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. PCB\uc758 \uad6c\ub9ac \ud328\ud134 \ubc0f \ube44\uc544 \uc694\uad6c \uc0ac\ud56d\uc740 \uc7a5\uce58\ubcc4 \uc5f4\uc801\u00b7\uc804\uae30\uc801 \ubd84\uc11d\uc744 \ud1b5\ud574 \uc815\ud574\uc57c \ud569\ub2c8\ub2e4. NXP\ub294 \ub178\ucd9c \ud328\ub4dc \ubc0f \ube44\uc544 \uc124\uacc4\uac00 \uc81c\ud488\uc758 \uc804\ub825 \uc190\uc2e4\uacfc \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4\uace0 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc5d0\uc5b4 \uce90\ube44\ud2f0 QFN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5d0\uc5b4 \uce90\ube44\ud2f0\ud615 \ud328\ud0a4\uc9c0\ub294 \ub2e4\uc774 \uc8fc\ubcc0\uc744 \uc77c\ubc18\uc801\uc778 \ud2b8\ub79c\uc2a4\ud37c \ubab0\ub529\uc73c\ub85c \ubc14\ub85c \uac10\uc2f8\uc9c0 \uc54a\uace0 \ub0b4\ubd80 \uacf5\uac04\uc744 \ub461\ub2c8\ub2e4. \uc804\uae30\uc801 \uc131\ub2a5, \uc8fc\ud30c\uc218 \uc751\ub2f5 \ub610\ub294 \ud2b9\uc218\ud55c \ub2e4\uc774 \uc694\uad6c \uc0ac\ud56d\uc744 \uace0\ub824\ud560 \ub54c \ub354 \ub192\uc740 \ud328\ud0a4\uc9c0 \ube44\uc6a9\uc744 \uac10\uc218\ud560 \ub9cc\ud55c \uc77c\ubd80 RF \ubc0f \ub9c8\uc774\ud06c\ub85c\ud30c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\uc758 \uc7a5\uc810<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ub354 \uc791\uc740 PCB \ud48b\ud504\ub9b0\ud2b8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uc790\uac00 \ud328\ud0a4\uc9c0 \ubcf8\uccb4 \ubc16\uc73c\ub85c \ub3cc\ucd9c\ub418\uc9c0 \uc54a\uc73c\ubbc0\ub85c QFN\uc740 \ubcf4\ud1b5 \ube44\uc2b7\ud55c \ub9ac\ub4dc\ud615 \ud328\ud0a4\uc9c0\ubcf4\ub2e4 \uae30\ud310 \uba74\uc801\uc744 \uc801\uac8c \ucc28\uc9c0\ud569\ub2c8\ub2e4. \uc587\uc740 \ub192\uc774 \ub355\ubd84\uc5d0 \uc18c\ud615 \uc81c\ud488\uc774\ub098 \ub192\uc774\uac00 \uc81c\ud55c\ub41c \uc81c\ud488\uc5d0\ub3c4 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc6b0\uc218\ud55c \uc804\uae30\uc801 \uc131\ub2a5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9e7\uc740 \ub2e8\uc790 \uacbd\ub85c\ub294 \uae38\uac8c \uc131\ud615\ub41c \ub9ac\ub4dc\uc5d0 \ube44\ud574 \uae30\uc0dd \uc778\ub355\ud134\uc2a4\uc640 \uc800\ud56d\uc744 \uc904\uc785\ub2c8\ub2e4. PCB \ub808\uc774\uc544\uc6c3\uc744 \ub3d9\uc77c\ud558\uac8c \uc798 \uc81c\uc5b4\ud55c\ub2e4\uba74 \uace0\uc18d \ub514\uc9c0\ud138 \uc2e0\ud638, RF \ud68c\ub85c, \uc2a4\uc704\uce6d \uc804\ub825 \ubcc0\ud658\uae30 \ubc0f \uc815\ubc00 \uc544\ub0a0\ub85c\uadf8 \uc124\uacc4\uc5d0 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud6a8\uc728\uc801\uc778 \uc5f4 \uc804\ub2ec<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub178\ucd9c \ud328\ub4dc\ub97c \uc62c\ubc14\ub974\uac8c \ub0a9\ub55c\ud558\uba74 \ub2e4\uc774\uc5d0\uc11c PCB \uad6c\ub9ac\uce35\uc73c\ub85c \uc5f4\uc774 \uc804\ub2ec\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5f4 \ube44\uc544\ub294 \uc774 \uc5f4\uc744 \ub0b4\ubd80 \ud3c9\uba74\uc774\ub098 \uae30\ud310 \ub4b7\uba74\uc73c\ub85c \ubd84\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc811\ud569\ubd80 \uc628\ub3c4\ub294 \uc5ec\uc804\ud788 \uc804\ub825 \uc190\uc2e4, \uad6c\ub9ac \uba74\uc801, \uce35 \uad6c\uc131, \uacf5\uae30 \ud750\ub984, \uc8fc\ubcc0 \ubd80\ud488, \uc811\ud569 \ud488\uc9c8 \ubc0f \uc778\ud074\ub85c\uc800 \uc870\uac74\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uac00\ubcbc\uc6b4 \ubb34\uac8c\uc640 \ub0ae\uc740 \ub192\uc774<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QFN\uc740 \uac00\ubccd\uace0 \uc587\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud734\ub300\uc6a9 \uae30\uae30, \uc13c\uc11c, \ud1b5\uc2e0 \ubaa8\ub4c8, \uc6e8\uc5b4\ub7ec\ube14 \uae30\uae30, \uc0b0\uc5c5\uc6a9 \uc81c\uc5b4 \uc7a5\uce58 \ubc0f \uacf5\uac04\uc774 \uc81c\ud55c\ub41c \uae30\ud0c0 \uc870\ub9bd\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud45c\uc900 SMT \uacf5\uc815<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QFN\uc740 \uc77c\ubc18\uc801\uc778 \uc194\ub354 \ud398\uc774\uc2a4\ud2b8 \uc778\uc1c4, \ud53d \uc564 \ud50c\ub808\uc774\uc2a4 \ubc0f \ub9ac\ud50c\ub85c \uc7a5\ube44\ub97c \uc0ac\uc6a9\ud574 \uc870\ub9bd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud45c\uc900 QFN \uacf5\uc815\uc5d0\uc11c\ub294 \uc5b8\ub354\ud544\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\uc758 \ud55c\uacc4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\uac00\ub824\uc9c4 \uc194\ub354 \uc811\ud569\ubd80<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\ubd80\ubd84\uc758 QFN \uc811\ud569\ubd80\ub294 \ubcf8\uccb4 \uc544\ub798\uc5d0 \uc788\uc5b4 \uc77c\ubc18\uc801\uc778 \uc721\uc548 \uac80\uc0ac\ub85c\ub294 \uc804\uccb4 \uc5f0\uacb0 \uc0c1\ud0dc\ub97c \ud655\uc778\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. 2\ucc28\uc6d0 X\uc120 \uac80\uc0ac\ub294 \uc5ec\ub7ec \ub2e8\uc120, \ube0c\ub9ac\uc9c0 \ubc0f \ubcf4\uc774\ub4dc\ub97c \uac80\ucd9c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uce21\uba74 \uc194\ub354 \uc811\ud569\ubd80\uac00 \ubcf4\uc774\ub294 \ud328\ud0a4\uc9c0\ub294 \uc8fc\ubcc0 \uc811\ud569\ubd80\uc758 \uad11\ud559 \uac80\uc0ac\ub97c \uac1c\uc120\ud558\uc9c0\ub9cc \uc911\uc559 \ud328\ub4dc\uac00 \ubcf4\uc774\uac8c \ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc5c4\uaca9\ud55c \ud48b\ud504\ub9b0\ud2b8 \ubc0f \uacf5\uc815 \uacf5\ucc28<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubbf8\uc138 \ud53c\uce58 \ud328\ub4dc\ub294 \uc194\ub354 \ub9c8\uc2a4\ud06c \uc815\ub82c \uc624\ucc28, \uc2a4\ud150\uc2e4 \uc624\ucc28, \uacfc\ub3c4\ud55c \ud398\uc774\uc2a4\ud2b8 \ubc0f \uc2e4\uc7a5 \uc704\uce58 \uc624\ucc28\ub97c \ud5c8\uc6a9\ud560 \uc5ec\uc9c0\uac00 \uc801\uc2b5\ub2c8\ub2e4. \ud48b\ud504\ub9b0\ud2b8\uac00 \uc870\uae08\ub9cc \uc798\ubabb\ub418\uc5b4\ub3c4 \uc0dd\uc0b0 \ub85c\ud2b8 \uc804\uccb4\uc5d0\uc11c \ube0c\ub9ac\uc9c0, \uc194\ub354 \ubd80\uc871 \ub610\ub294 \uc2e0\ub8b0\uc131 \ub0ae\uc740 \uc811\ud569\ubd80\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc5f4 \ud328\ub4dc\uc758 \ubcf4\uc774\ub4dc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ac\ud50c\ub85c \uc911 \ud50c\ub7ed\uc2a4 \uac00\uc2a4\uac00 \ub113\uc740 \ub178\ucd9c \ud328\ub4dc \uc544\ub798\uc5d0 \uac07\ud790 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5b4\ub290 \uc815\ub3c4\uc758 \ubcf4\uc774\ub4dc\ub294 \ubd88\uac00\ud53c\ud560 \uc218 \uc788\uc9c0\ub9cc, \ud06c\uac70\ub098 \ud55c\uacf3\uc5d0 \uc9d1\uc911\ub41c \ubcf4\uc774\ub4dc\ub294 \uc5f4 \uc804\ub2ec, \uc804\ub958 \ud750\ub984 \ub610\ub294 \uae30\uacc4\uc801 \uc9c0\uc9c0\uc5d0 \uc545\uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud5c8\uc6a9 \ud55c\uacc4\ub294 \uc77c\ub960\uc801\uc778 \ube44\uc728\uc774 \uc544\ub2c8\ub77c \ubd80\ud488 \uacf5\uae09\uc5c5\uccb4, \uc870\ub9bd \ud45c\uc900 \ubc0f \uc81c\ud488 \uc2e0\ub8b0\uc131 \uc694\uad6c \uc0ac\ud56d\uc744 \uae30\uc900\uc73c\ub85c \uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub354 \uc5b4\ub824\uc6b4 \uc2dc\uc81c\ud488 \uc81c\uc791 \ubc0f \uc7ac\uc791\uc5c5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc11\uba74 \uc811\ud569\ubd80 \ub54c\ubb38\uc5d0 \uc77c\ubc18 \uc778\ub450\ub97c \uc0ac\uc6a9\ud55c QFN \ub0a9\ub55c\uc740 \ub354 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \uc7ac\uc791\uc5c5\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc628\ub3c4 \uc81c\uc5b4\ud615 \uc608\uc5f4, \uc5f4\ud48d, \uc801\uc808\ud55c \ub178\uc990, \uc0c8 \uc194\ub354 \ud398\uc774\uc2a4\ud2b8 \ubc0f \uc815\ud655\ud55c \uc815\ub82c\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ubc18\ubcf5 \uac00\uc5f4\uc740 \ubd80\ud488, PCB \ud328\ub4dc, \uc194\ub354 \ub9c8\uc2a4\ud06c \ub610\ub294 \uc8fc\ubcc0 \ubd80\ud488\uc744 \uc190\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PCB \uc870\ub9bd \uc5ed\ub7c9\uc5d0 \ub300\ud55c \uc758\uc874\ub3c4 \uc99d\uac00<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CAD\uc5d0\uc11c \uc124\uacc4\uac00 \uc62c\ubc14\ub974\uac8c \ubcf4\uc5ec\ub3c4 \uc2a4\ud150\uc2e4, \ud398\uc774\uc2a4\ud2b8, \uc2e4\uc7a5 \uc815\ud655\ub3c4, \ub9ac\ud50c\ub85c \ud504\ub85c\ud30c\uc77c, \uc218\ubd84 \uad00\ub9ac \ub610\ub294 \uac80\uc0ac \ubc29\ubc95\uc774 \uc801\uc808\ud558\uc9c0 \uc54a\uc73c\uba74 \ubd88\ub7c9\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. PCB \uc124\uacc4\uc790, \uae30\ud310 \uc81c\uc870\uc5c5\uccb4 \ubc0f \uc870\ub9bd \uc5c5\uccb4\uac00 \ucd08\uae30\uc5d0 \ud611\ub825\ud558\uba74 \uc774\ub7ec\ud55c \uc704\ud5d8\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QFN, QFP, DFN \ubc0f BGA \ud328\ud0a4\uc9c0 \ube44\uad50<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\ud2b9\uc9d5<\/th><th>QFN<\/th><th>QFP<\/th><th>DFN<\/th><th>BGA<\/th><\/tr><tr><td>\uc678\ubd80 \uc5f0\uacb0\ubd80<\/td><td>\ub124 \uba74\uc5d0 \ubc30\uce58\ub41c \ubc11\uba74 \ud50c\ub7ab \ub2e8\uc790<\/td><td>\ub124 \uba74\uc5d0 \ubc30\uce58\ub41c \uac78\uc719 \ub9ac\ub4dc<\/td><td>\uc591\ucabd \uba74\uc5d0 \ubc30\uce58\ub41c \ubc11\uba74 \ud50c\ub7ab \ub2e8\uc790<\/td><td>\ud328\ud0a4\uc9c0 \uc544\ub798\uc5d0 \ubc30\uc5f4\ub41c \uc194\ub354 \ubcfc<\/td><\/tr><tr><td>\uc77c\ubc18\uc801\uc778 \ubcf4\ub4dc \ubc00\ub3c4<\/td><td>\ub300\ub7c9<\/td><td>\ubcf4\ud1b5<\/td><td>\ud540 \uc218\uac00 \uc801\uc744 \ub54c \ub192\uc74c<\/td><td>I\/O \uc218\uac00 \ub9ce\uc744 \ub54c \ub9e4\uc6b0 \ub192\uc74c<\/td><\/tr><tr><td>\uc804\uae30\uc801 \uacbd\ub85c<\/td><td>\uc9e7\uc74c<\/td><td>\ub354 \uae38\uac8c \ud615\uc131\ub41c \ub9ac\ub4dc<\/td><td>\uc9e7\uc74c<\/td><td>\uc9e7\uc73c\uba70 \ubc30\uc5f4\uc5d0 \ub530\ub77c \ub2e4\ub984<\/td><\/tr><tr><td>\uc5f4 \uacbd\ub85c<\/td><td>\ub178\ucd9c \ud328\ub4dc\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc74c<\/td><td>\ud328\ud0a4\uc9c0\uc5d0 \ub530\ub77c \ub2e4\ub984<\/td><td>\ub178\ucd9c \ud328\ub4dc\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc74c<\/td><td>\ubcfc, \uc5f4\uc804\ub2ec\uc6a9 \ubcfc \ub610\ub294 \uae30\ud0c0 \uad6c\uc870\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc74c<\/td><\/tr><tr><td>\uc811\ud569\ubd80 \uac00\uc2dc\uc131<\/td><td>\uc81c\ud55c\uc801\uc774\uba70 X\uc120 \uac80\uc0ac\ub97c \uc790\uc8fc \uc0ac\uc6a9\ud568<\/td><td>\uc721\uc548\uc73c\ub85c \uc798 \ud655\uc778\ud560 \uc218 \uc788\uc74c<\/td><td>\uc81c\ud55c\uc801<\/td><td>\uc228\uaca8\uc838 \uc788\uc5b4 X\uc120 \uac80\uc0ac\ub97c \ud754\ud788 \uc0ac\uc6a9\ud568<\/td><\/tr><tr><td>\uc218\uc791\uc5c5 \ud504\ub85c\ud1a0\ud0c0\uc774\ud551<\/td><td>\uc5b4\ub824\uc6c0<\/td><td>\ub354 \uc26c\uc6c0<\/td><td>\uc5b4\ub824\uc6c0<\/td><td>\ub9e4\uc6b0 \uc5b4\ub824\uc6c0<\/td><\/tr><tr><td>\uc801\ud569\ud55c \uc6a9\ub3c4<\/td><td>\uc18c\ud615, \uc911\u00b7\uc800 I\/O, \uc5f4 \uad00\ub9ac \ub610\ub294 \uace0\uc8fc\ud30c \uc124\uacc4<\/td><td>\uc811\uadfc\ud558\uae30 \uc26c\uc6b4 \ub9ac\ub4dc\uc640 \uac04\ud3b8\ud55c \uac80\uc0ac\ub97c \uc6b0\uc120\ud558\ub294 \uc124\uacc4<\/td><td>\uc591\ucabd\uc5d0 \ub2e8\uc790\uac00 \uc788\ub294 \uc18c\ud615 \ubd80\ud488<\/td><td>I\/O \uc218\uac00 \ub9ce\uc740 \ud504\ub85c\uc138\uc11c, FPGA, \uba54\ubaa8\ub9ac \ubc0f \uace0\ubc00\ub3c4 \uc18c\uc790<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5b4\ub5a4 \ud328\ud0a4\uc9c0\ub3c4 \ud56d\uc0c1 \ub354 \uc6b0\uc218\ud55c \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. I\/O \uc218, \ubcf4\ub4dc \uba74\uc801, \uc804\ub825 \uc190\uc2e4, \uc2e0\ud638 \uc131\ub2a5, \uac80\uc0ac \uc694\uac74, \uc870\ub9bd \uc5ed\ub7c9, \uc7ac\uc791\uc5c5 \uc804\ub7b5, \uacf5\uae09 \uac00\ub2a5\uc131 \ubc0f \ucd1d\ube44\uc6a9\uc744 \uace0\ub824\ud574 \uc120\ud0dd\ud558\uc138\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QFN PCB \ud48b\ud504\ub9b0\ud2b8 \ubc0f \ub808\uc774\uc544\uc6c3 \uc9c0\uce68<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \uc815\ud655\ud55c \ud328\ud0a4\uc9c0 \ub3c4\uba74\ubd80\ud130 \ud655\uc778\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9c8\ucf00\ud305\uc6a9 \ud328\ud0a4\uc9c0 \uba85\uce6d\ub9cc\uc73c\ub85c \ud48b\ud504\ub9b0\ud2b8\ub97c \ub9cc\ub4e4\uc9c0 \ub9c8\uc138\uc694. QFN-32\ub77c\uace0 \ud45c\uae30\ub41c \ubd80\ud488\uc774\ub77c\ub3c4 \ubcf8\uccb4 \ud06c\uae30, \ud53c\uce58, \ub2e8\uc790 \uae38\uc774, \ub178\ucd9c \ud328\ub4dc \uce58\uc218 \ub610\ub294 1\ubc88 \ud540 \ud45c\uc2dc\uac00 \uc11c\ub85c \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c \ud56d\ubaa9\uc744 \ud655\uc778\ud558\uc138\uc694:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc81c\uc870\uc5c5\uccb4\uc758 \uc804\uccb4 \ubd80\ud488 \ubc88\ud638<\/li>\n\n\n\n<li>\ud328\ud0a4\uc9c0 \ucf54\ub4dc \ubc0f \uac1c\uc815\ud310<\/li>\n\n\n\n<li>\ubcf8\uccb4 \uce58\uc218 \ubc0f \uacf5\ucc28<\/li>\n\n\n\n<li>\ub2e8\uc790 \uc218, \ud53c\uce58, \ud3ed \ubc0f \uae38\uc774<\/li>\n\n\n\n<li>\ub178\ucd9c \ud328\ub4dc \ud06c\uae30 \ubc0f \uc804\uae30\uc801 \uc5f0\uacb0 \uc9c0\uc815<\/li>\n\n\n\n<li>\uad8c\uc7a5 PCB \ub79c\ub4dc \ud328\ud134<\/li>\n\n\n\n<li>\uad8c\uc7a5 \uc194\ub354 \ub9c8\uc2a4\ud06c \ubc0f \ud398\uc774\uc2a4\ud2b8 \ub9c8\uc2a4\ud06c \uac1c\uad6c\ubd80<\/li>\n\n\n\n<li>1\ubc88 \ud540 \uc704\uce58 \ubc0f \ubd80\ud488 \ud68c\uc804 \ubc29\ud5a5<\/li>\n\n\n\n<li>\uc2b5\uae30 \ubbfc\uac10\ub3c4 \ubc0f \ub9ac\ud50c\ub85c \uc81c\ud55c<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\uc2dc\ud2b8\uc5d0 \uacf5\uc2dd \uad8c\uc7a5 \ud48b\ud504\ub9b0\ud2b8 \ub300\uc2e0 \ub808\uc774\uc544\uc6c3 \uc608\uc2dc\ub9cc \uc81c\uacf5\ub41c \uacbd\uc6b0, \uadf8 \ud574\uc11d\uc744 \ubd80\ud488 \uc81c\uc870\uc5c5\uccb4 \ubc0f \uc870\ub9bd \uc5c5\uccb4\uc5d0 \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. 1\ubc88 \ud540\uacfc \ubc29\ud5a5 \ud655\uc778\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QFN\uc740 \uc810, \ubaa8\ub530\uae30, \ub178\uce58 \ub610\ub294 \uadf8 \ubc16\uc758 \ubbf8\uc138\ud55c \ud45c\uc2dc\ub85c 1\ubc88 \ud540\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub370\uc774\ud130\uc2dc\ud2b8\uc758 \ubc11\uba74\ub3c4 \ub610\ub294 \uc717\uba74\ub3c4 \uae30\uc900\uc744 ECAD \ud48b\ud504\ub9b0\ud2b8\uc640 \uc77c\uce58\uc2dc\ud0a4\uc138\uc694. \uadf8\ub7f0 \ub2e4\uc74c \ud68c\ub85c\ub3c4\uc758 \ud540 \ubc88\ud638, \uad6c\ub9ac \ud328\ub4dc, \uc2e4\ud06c\uc2a4\ud06c\ub9b0, \uc870\ub9bd\ub3c4, \uc911\uc2ec \uc88c\ud45c \ud68c\uc804\uac12 \ubc0f \ud53d\uc564\ud50c\ub808\uc774\uc2a4 \ub370\uc774\ud130\ub97c \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub3c5\ub9bd\uc801\uc778 \ub77c\uc774\ube0c\ub7ec\ub9ac \uac80\ud1a0 \ube44\uc6a9\uc740 \ubc29\ud5a5\uc774 \ub4a4\uc9d1\ud78c \uc0dd\uc0b0 \uc81c\ud488\uc744 \uad50\uccb4\ud558\ub294 \ube44\uc6a9\uc5d0 \ube44\ud558\uba74 \uc801\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \uc8fc\ubcc0 \ud328\ub4dc\uc640 \uc194\ub354 \ub9c8\uc2a4\ud06c\ub97c \ud568\uaed8 \uc124\uacc4\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QFN \uc8fc\ubcc0 \ub2e8\uc790\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc194\ub354 \ub9c8\uc2a4\ud06c \ube44\uc815\uc758 \ud328\ub4dc\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4. \ub9c8\uc2a4\ud06c \uac1c\uad6c\ubd80\uac00 \uad6c\ub9ac \ub79c\ub4dc\ubcf4\ub2e4 \ucee4\uc11c \uc194\ub354\uac00 \ub79c\ub4dc \uac00\uc7a5\uc790\ub9ac\uae4c\uc9c0 \uc798 \uc816\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ud53c\uce58\uac00 \ub9e4\uc6b0 \uc881\uc740 \uc124\uacc4\uc5d0\uc11c\ub294 \uc548\uc815\uc801\uc778 \uc194\ub354 \ub9c8\uc2a4\ud06c \uc6f9\uc744 \ud655\ubcf4\ud560 \uacf5\uac04\uc774 \ubd80\uc871\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c, \uacf5\uc6a9 \uac1c\uad6c\ubd80 \ub610\ub294 \ud2b8\ub80c\uce58\ud615 \uac1c\uad6c\ubd80\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Analog Devices\ub294 0.4 mm \ud53c\uce58 \ubd80\ud488\uacfc \uadf8\ubcf4\ub2e4 \ud53c\uce58\uac00 \ub113\uc740 \ubd80\ud488\uc758 \ucc28\uc774\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. <a href=\"https:\/\/www.analog.com\/en\/resources\/app-notes\/an-772.html\">Analog Devices AN-772<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6c\ub9ac, \uc194\ub354 \ub9c8\uc2a4\ud06c, \ud398\uc774\uc2a4\ud2b8 \ub9c8\uc2a4\ud06c, \uc81c\uc870 \uc815\ud569\ub3c4 \ubc0f \uc870\ub9bd \uc5c5\uccb4\uc758 \uc5ed\ub7c9\uc744 \ud558\ub098\uc758 \uc2dc\uc2a4\ud15c\uc73c\ub85c \uace0\ub824\ud558\uc138\uc694. \uc774\ub860\uc801\uc778 \ud48b\ud504\ub9b0\ud2b8 \ud615\uc2dd\uc744 \uc720\uc9c0\ud558\ub824\uace0 PCB \uacf5\uae09\uc5c5\uccb4\uac00 \uac80\uc99d\ud55c \uc0dd\uc0b0 \ud55c\uacc4\ubcf4\ub2e4 \ub9c8\uc2a4\ud06c \ub310\uc744 \uc881\ud788\uc9c0 \ub9c8\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \ub178\ucd9c \ud328\ub4dc\ub97c \uc62c\ubc14\ub978 \ub124\ud2b8\uc5d0 \uc5f0\uacb0\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\uc2dc\ud2b8\uc758 \ub124\ud2b8 \uc9c0\uc815 \ubc0f \ub808\uc774\uc544\uc6c3 \uc9c0\uce68\uc744 \ub530\ub974\uc138\uc694. \ud328\ub4dc\uac00 \uc811\uc9c0\ub77c\uba74 \uc758\ub3c4\ud55c \uc811\uc9c0 \uad6c\uc870\uc5d0 \ub0ae\uc740 \uc784\ud53c\ub358\uc2a4 \uacbd\ub85c\ub85c \uc5f0\uacb0\ud558\uc138\uc694. \uc2a4\uc704\uce6d \ub178\ub4dc\ub098 \uc804\uc6d0\uc778 \uacbd\uc6b0 \uc811\uc9c0\uba74\uacfc \uc2e4\uc218\ub85c \ub2e8\ub77d\ub418\uc9c0 \uc54a\ub3c4\ub85d \ud558\uace0 \uc778\uc811 \uce35\uc73c\ub85c\uc758 \ub178\uc774\uc988 \uacb0\ud569\ub3c4 \uace0\ub824\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc81c\uc870\uc5c5\uccb4\uac00 \uba85\uc2dc\uc801\uc73c\ub85c \ud5c8\uc6a9\ud558\uc9c0 \uc54a\ub294 \ud55c, \ub178\ucd9c \ud328\ub4dc \uc544\ub798\uc5d0 \uad00\ub828 \uc5c6\ub294 \uc2e0\ud638\ub97c \ubc30\uc120\ud558\uc9c0 \ub9c8\uc138\uc694. \ud328\ub4dc\uc5d0\ub294 \uc194\ub9ac\ub4dc \uad6c\ub9ac, \ubd84\ud560 \uad6c\ub9ac, \uc808\uc5f0 \ub610\ub294 \ud2b9\uc815 \uc5f0\uacb0 \ud328\ud134\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Engineer the Thermal Via Array<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thermal vias move heat and current from the exposed pad into other copper layers. Their number, finished hole diameter, pitch, plating, fill, cap, and connection style affect thermal performance and solder behavior.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">General application notes often show vias around 0.3 mm in diameter on an approximately 1.0\u20131.2 mm grid, but these are starting examples\u2014not universal design rules. TI, NXP, and Analog Devices also document different tenting, plugging, and mask approaches for different package and process conditions. The correct solution depends on the component, PCB thickness, copper weight, thermal target, solder process, and fabrication capability. <a href=\"https:\/\/www.ti.com\/lit\/pdf\/sloa122\">TI QFN Layout Guidelines<\/a> \uacfc <a href=\"https:\/\/www.nxp.com\/docs\/en\/application-note\/AN2467.pdf\">NXP PwrQFN Assembly Guidelines<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For via-in-pad designs, ask the fabricator and assembler whether the vias should be filled and capped, plugged, tented, or left open. Open vias that are too large can wick solder away from the exposed-pad joint or create protrusions on the opposite side.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. Use a Windowpane Stencil Pattern for Large Pads<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Printing one large block of solder paste over the full exposed pad can deposit too much paste, trap flux gases, float the component, or encourage bridging. A divided \u201cwindowpane\u201d pattern uses several smaller apertures to control paste volume and create outgassing paths.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Manufacturer guidance commonly uses <strong>50% to 80% paste coverage<\/strong> as a starting range for the exposed pad, but the final stencil design must be tuned for the package, paste, stencil thickness, aperture area ratio, board finish, and reflow profile.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-stencil-design-showing.webp\" alt=\"QFN stencil design showing windowpane aperture array pattern for thermal pad to prevent solder voiding\" class=\"wp-image-23540\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-stencil-design-showing.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-stencil-design-showing-300x200.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-stencil-design-showing-768x512.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/qfn-stencil-design-showing-18x12.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">7. Plan the Copper for Heat Flow<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thermal vias are only useful if they connect to enough copper. Use suitable internal or bottom-layer planes, solid via connections where thermally appropriate, and adequate copper spreading area. Then verify the design with the component&#8217;s thermal data, power-loss calculation, and realistic operating conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do not copy the datasheet&#8217;s junction-to-ambient value into a design calculation without checking its test-board conditions. Your board stack, copper, airflow, and enclosure may be very different.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8. Keep Critical Components and Traces Close<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Place decoupling capacitors, bootstrap components, feedback networks, crystals, matching networks, and current-sense paths according to the device&#8217;s functional layout guidance. A QFN&#8217;s low package inductance cannot compensate for long or poorly referenced PCB traces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For switch-mode power or RF devices, the recommended evaluation-board layout can provide useful context, but it should be reconciled with the production stackup and design rules rather than copied blindly.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Are QFN Packages Assembled?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\uc194\ub354 \ud398\uc774\uc2a4\ud2b8 \uc778\uc1c4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A stainless-steel stencil deposits solder paste on the perimeter pads and exposed-pad area. Aperture size, stencil thickness, wall finish, and alignment determine the paste volume. Solder paste inspection is valuable because print defects become difficult to diagnose after the package covers the joints.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pick-and-Place<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Automated equipment places the QFN using package-body recognition, pad recognition, or both. Local fiducials can improve alignment for fine-pitch or tightly controlled assemblies. The correct centroid, rotation, nozzle, pickup height, and placement force should be defined in the assembly data.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reflow Soldering<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The board passes through a controlled thermal profile that activates the flux, melts the solder, and forms the joints. The profile should follow the solder-paste supplier&#8217;s guidance while respecting the component&#8217;s temperature and moisture limits. Profiling the actual product is more reliable than using oven settings from a different board.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uac80\uc0ac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Inspection may combine:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Solder paste inspection before placement<\/li>\n\n\n\n<li>Automated optical inspection for package position and visible edges<\/li>\n\n\n\n<li>X-ray inspection for hidden opens, bridges, voids, and solder distribution<\/li>\n\n\n\n<li>Electrical testing or boundary-scan testing where supported<\/li>\n\n\n\n<li>\uae30\ub2a5 \ud14c\uc2a4\ud2b8<\/li>\n\n\n\n<li>Cross-section analysis for process qualification or failure investigation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Standard QFNs generally do not provide a fully visible toe fillet. X-ray is therefore commonly used for process monitoring and failure analysis. <a href=\"https:\/\/www.analog.com\/en\/resources\/app-notes\/smt-assembly-and-pcb-design-guidelines-for-maxims-standard-wirebonded-quad-flatpack.html\">Analog Devices QFN Assembly Guidelines<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/x-ray-inspection-view.webp\" alt=\"X-ray inspection view of QFN solder joints showing thermal pad solder voiding and pin bridging defects\" class=\"wp-image-23542\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/x-ray-inspection-view.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/x-ray-inspection-view-300x200.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/x-ray-inspection-view-768x512.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/x-ray-inspection-view-18x12.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Common QFN Assembly Defects and How to Prevent Them<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\uacb0\ud568<\/th><th>Likely causes<\/th><th>Preventive actions<\/th><\/tr><tr><td>Solder bridging<\/td><td>Excess paste, oversized apertures, poor mask registration, placement error<\/td><td>Verify the footprint, reduce or reshape stencil apertures, improve registration and placement control<\/td><\/tr><tr><td>Open or weak joints<\/td><td>Insufficient paste, poor paste release, oxidation, warped board, incorrect profile<\/td><td>Check stencil area ratio, paste condition, surface finish, coplanarity, storage, and reflow profiling<\/td><\/tr><tr><td>Excess exposed-pad voiding<\/td><td>Large paste opening, flux outgassing, via wicking, unsuitable profile<\/td><td>Use divided apertures, optimize coverage and profile, review via treatment, verify with X-ray<\/td><\/tr><tr><td>Component floating or skew<\/td><td>Too much center-pad paste or unbalanced solder volume<\/td><td>Balance paste deposits and reduce excessive exposed-pad paste<\/td><\/tr><tr><td>Solder loss into vias<\/td><td>Oversized or open vias within the pad<\/td><td>Use controlled small vias or an agreed plugging, filling, capping, or tenting strategy<\/td><\/tr><tr><td>Misorientation<\/td><td>\ud540 1 \ud45c\uc2dc\uac00 \ubaa8\ud638\ud558\uac70\ub098 \uc911\uc2ec\uc810\uc744 \uae30\uc900\uc73c\ub85c \ud55c \ud68c\uc804 \ubc29\ud5a5\uc774 \uc798\ubabb\ub428<\/td><td>\uba85\ud655\ud55c \uc870\ub9bd \ud45c\uc2dc\ub97c \uc0ac\uc6a9\ud558\uace0, ECAD \ubdf0\ub97c \ud655\uc778\ud558\uba70, \ucd08\ub3c4\ud488 \uac80\uc0ac\ub97c \uc218\ud589\ud558\uc138\uc694<\/td><\/tr><tr><td>\uac04\ud5d0\uc801\uc778 \uc5f4 \uace0\uc7a5<\/td><td>\ub178\ucd9c \ud328\ub4dc \uc5f0\uacb0\uc774 \ubd88\ucda9\ubd84\ud558\uac70\ub098 \uad6c\ub9ac \uba74\uc801\uc774 \ubd80\uc871\ud558\uac70\ub098 \uc720\ud6a8 \ube44\uc544 \uc218\uac00 \ub108\ubb34 \uc801\uc74c<\/td><td>\uc804\ub825 \uc190\uc2e4\uc744 \ub2e4\uc2dc \uacc4\uc0b0\ud558\uace0, \ud328\ub4dc\/\ube44\uc544\/\ud3c9\uba74 \uacbd\ub85c\ub97c \uac1c\uc120\ud55c \ub2e4\uc74c, \uc2e4\uc81c \ud558\ub4dc\uc6e8\uc5b4\uc5d0\uc11c \uc628\ub3c4\ub97c \uac80\uc99d\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\ub294 \uc5b8\uc81c \uc0ac\uc6a9\ud574\uc57c \ud560\uae4c\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uacfc \uac19\uc740 \uc694\uad6c \uc0ac\ud56d\uc774 \uc788\ub294 \uc124\uacc4\uc5d0\ub294 QFN\uc774 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc791\uace0 \ub192\uc774\uac00 \ub0ae\uc740 \ubd80\ud488<\/li>\n\n\n\n<li>\uc9e7\uc740 \uc804\uae30 \uacbd\ub85c\uc640 \ub0ae\uc740 \ub9ac\ub4dc \uae30\uc0dd \uc131\ubd84<\/li>\n\n\n\n<li>PCB\ub85c\uc758 \ud6a8\uc728\uc801\uc778 \uc5f4 \uc804\ub2ec<\/li>\n\n\n\n<li>\uc804\uccb4 \ubcfc \uadf8\ub9ac\ub4dc \uc5b4\ub808\uc774\ub97c \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uace0\ub3c4 \ud655\ubcf4\ud560 \uc218 \uc788\ub294 \uc911\uac04\uc5d0\uc11c \ub192\uc740 \uc218\uc900\uc758 \ub2e8\uc790 \ubc00\ub3c4<\/li>\n\n\n\n<li>\ub300\ub7c9 \uc0dd\uc0b0\uc744 \uc704\ud55c \uc790\ub3d9 SMT \uc870\ub9bd<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0\ub294 \ub2e4\ub978 \ud328\ud0a4\uc9c0\ub97c \uace0\ub824\ud558\uc138\uc694.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc218\uc791\uc5c5 \uc870\ub9bd\uacfc \uc721\uc548 \uac80\uc0ac\uac00 \uc8fc\uc694 \uc694\uad6c \uc0ac\ud56d\uc778 \uacbd\uc6b0<\/li>\n\n\n\n<li>\uc870\ub9bd \uc5c5\uccb4\uac00 \uc120\ud0dd\ud55c \ud53c\uce58\ub97c \uc548\uc815\uc801\uc73c\ub85c \uc2e4\uc7a5, \ub9ac\ud50c\ub85c\uc6b0 \ub610\ub294 X\uc120 \uac80\uc0ac\ud560 \uc218 \uc5c6\ub294 \uacbd\uc6b0<\/li>\n\n\n\n<li>\ud604\uc7a5 \uc218\ub9ac\uac00 \ube60\ub974\uace0 \uac04\ud3b8\ud574\uc57c \ud558\ub294 \uacbd\uc6b0<\/li>\n\n\n\n<li>\uc124\uacc4\uc5d0 \uc2e4\uc6a9\uc801\uc778 QFN\uc774 \uc81c\uacf5\ud560 \uc218 \uc788\ub294 \uac83\ubcf4\ub2e4 \ub354 \ub9ce\uc740 I\/O\uac00 \ud544\uc694\ud55c \uacbd\uc6b0<\/li>\n\n\n\n<li>\uae30\ud310 \ud728, \uc2ec\ud55c \uc5f4 \uc0ac\uc774\ud074\ub9c1 \ub610\ub294 \uc2e0\ub8b0\uc131 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ub2e4\ub978 \uc778\uc99d\ub41c \ud328\ud0a4\uc9c0 \uc635\uc158\uc774 \ub354 \uc801\ud569\ud55c \uacbd\uc6b0<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud328\ud0a4\uc9c0\ub294 \ud68c\ub85c\ub3c4\uc640 \ubd80\ud488 \uac00\uaca9\ubfd0 \uc544\ub2c8\ub77c PCB\uc640 \uc870\ub9bd \uacf5\uc815\ub3c4 \uace0\ub824\ud558\uc5ec \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \uc124\uacc4 \ubc0f \uc81c\uc870 \uccb4\ud06c\ub9ac\uc2a4\ud2b8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QFN \uae30\ubc18 PCB\ub97c \ucd9c\uc2dc\ud558\uae30 \uc804\uc5d0 \ub2e4\uc74c \uc0ac\ud56d\uc744 \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc815\ud655\ud55c \ubd80\ud488 \ud328\ud0a4\uc9c0 \ucf54\ub4dc\uc640 \ucd5c\uc2e0 \ub370\uc774\ud130\uc2dc\ud2b8\ub97c \uc0ac\uc6a9\ud588\ub294\uc9c0 \ud655\uc778<\/li>\n\n\n\n<li>\ub178\ucd9c \ud328\ub4dc\uac00 \uc5f4 \uc804\uc6a9\uc778\uc9c0, \uc804\uae30 \uc5f0\uacb0\uc6a9\uc778\uc9c0, \uc544\ub2c8\uba74 \ub458 \ub2e4\uc778\uc9c0 \ud655\uc778<\/li>\n\n\n\n<li>\ud540 \ubc88\ud638, \ud540 1 \uc704\uce58 \ubc0f \ud53d\uc564\ud50c\ub808\uc774\uc2a4 \ud68c\uc804 \ubc29\ud5a5 \ud655\uc778<\/li>\n\n\n\n<li>\uad6c\ub9ac, \uc194\ub354 \ub9c8\uc2a4\ud06c \ubc0f \ud398\uc774\uc2a4\ud2b8 \ub9c8\uc2a4\ud06c \ud615\uc0c1\uc744 \uac01\uac01 \uac80\ud1a0<\/li>\n\n\n\n<li>PCB \ubc0f \uc870\ub9bd \uc5c5\uccb4\uc640 \uc5f4 \ube44\uc544\uc758 \ud06c\uae30, \ud53c\uce58 \ubc0f \ucc98\ub9ac \ubc29\uc2dd \ud569\uc758<\/li>\n\n\n\n<li>\ub178\ucd9c \ud328\ub4dc\uc5d0 \uc801\uc808\ud55c \ubd84\ud560 \ud398\uc774\uc2a4\ud2b8 \ud328\ud134 \uc801\uc6a9<\/li>\n\n\n\n<li>\uc2a4\ud150\uc2e4 \uac1c\uad6c \uba74\uc801\ube44\uc640 \ud398\uc774\uc2a4\ud2b8 \uc774\ud615 \uc131\ub2a5 \ud655\uc778<\/li>\n\n\n\n<li>\ud544\uc694\ud55c \uc5f4 \uacbd\ub85c\uc5d0 \ucda9\ubd84\ud55c \uad6c\ub9ac \uba74\uc801 \ud655\ubcf4<\/li>\n\n\n\n<li>\ud544\uc694\uc5d0 \ub530\ub77c \uc194\ub354 \ud398\uc774\uc2a4\ud2b8 \uac80\uc0ac, X\uc120 \uac80\uc0ac, \uc804\uae30 \uac80\uc0ac \ubc0f \uae30\ub2a5 \uac80\uc0ac\ub97c \uacc4\ud68d<\/li>\n\n\n\n<li>\uc2b5\uae30 \uad00\ub9ac \ubc29\ubc95\uacfc \uc81c\ud488\ubcc4 \ub9ac\ud50c\ub85c\uc6b0 \ud504\ub85c\ud30c\uc77c \uc815\uc758<\/li>\n\n\n\n<li>\uc804\uccb4 \uc0dd\uc0b0\uc5d0 \uc55e\uc11c \ucd08\ub3c4\ud488\uc744 \uc81c\uc791\ud558\uace0 \uac80\ud1a0<\/li>\n\n\n\n<li>\ubd80\ud488 \ubc0f \uc81c\ud488 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ubcf4\uc774\ub4dc\uc640 \uc228\uaca8\uc9c4 \uc811\ud569\ubd80\uc758 \ud569\uaca9 \uae30\uc900 \uc124\uc815<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0 \uad00\ub828 \uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">QFN\uc740 \ubb34\uc5c7\uc758 \uc57d\uc790\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QFN\uc740 <strong>Quad Flat No-Lead(\ucffc\ub4dc \ud50c\ub7ab \ubb34\ub9ac\ub4dc)<\/strong>\uc758 \uc57d\uc790\uc785\ub2c8\ub2e4. \u201cQuad\u201d\ub294 \ub124 \uba74\uc5d0 \ub2e8\uc790\uac00 \uc788\ub2e4\ub294 \ub73b\uc774\uace0, \u201cno-lead\u201d\ub294 \uae38\uac8c \ub3cc\ucd9c\ub41c \ub9ac\ub4dc\uac00 \uc5c6\ub2e4\ub294 \ub73b\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\ub294 \ubb34\uc5f0\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc18\ub4dc\uc2dc \uadf8\ub807\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \u201c\ubb34\ub9ac\ub4dc\u201d\ub294 \ud328\ud0a4\uc9c0\uc5d0 \uae38\uac8c \ub3cc\ucd9c\ub41c \ub9ac\ub4dc\uac00 \uc5c6\ub2e4\ub294 \ub73b\uc774\uc9c0, \uc7ac\ub8cc \uad6c\uc131\uc744 \uc778\uc99d\ud558\ub294 \ud45c\ud604\uc740 \uc544\ub2d9\ub2c8\ub2e4. \ubd80\ud488\uc758 RoHS, \ub3c4\uae08 \ubc0f \ubb3c\uc9c8 \uaddc\uc815 \uc900\uc218 \uad00\ub828 \ubb38\uc11c\ub97c \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN\uc740 DFN\uacfc \uac19\uc740 \uac83\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc544\ub2d9\ub2c8\ub2e4. \ub458 \ub2e4 \ud3c9\uba74\ud615 \ubb34\ub9ac\ub4dc \ud328\ud0a4\uc9c0\uc774\uc9c0\ub9cc, QFN\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub124 \uba74\uc744 \ub530\ub77c \ub2e8\uc790\uac00 \uc788\uace0 DFN\uc740 \uc11c\ub85c \ub9c8\uc8fc \ubcf4\ub294 \ub450 \uba74\uc5d0 \ub2e8\uc790\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN\uc740 BGA\uc640 \uac19\uc740 \uac83\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc544\ub2d9\ub2c8\ub2e4. QFN\uc740 \ud328\ud0a4\uc9c0 \ub458\ub808\uc5d0 \ud3c9\ud3c9\ud55c \ubc11\uba74 \ub2e8\uc790\uac00 \uc788\uace0, \uc911\uc559\uc5d0 \ub178\ucd9c \ud328\ub4dc\uac00 \uc788\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. BGA\ub294 \ud328\ud0a4\uc9c0 \uc544\ub798\uc5d0 \ubc30\uc5f4\ub41c \uc194\ub354 \ubcfc\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. BGA\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \ub9ce\uc740 I\/O\ub97c \uc9c0\uc6d0\ud558\uace0, QFN\uc740 \uc801\ud569\ud55c \uc18c\uc790\uc5d0 \uc0ac\uc6a9\ud558\uba74 \ud06c\uae30\uac00 \ub354 \uc791\uace0 \uad6c\uc870\uac00 \ub354 \ub2e8\uc21c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \ud328\ud0a4\uc9c0\ub294 \uc218\uc791\uc5c5\uc73c\ub85c \ub0a9\ub55c\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2dc\uc81c\ud488\uc740 \uc194\ub354 \ud398\uc774\uc2a4\ud2b8, \uc2a4\ud150\uc2e4, \uc628\ub3c4\ub97c \uc81c\uc5b4\ud560 \uc218 \uc788\ub294 \uc5f4\ud48d\uae30 \ub610\ub294 \ub9ac\ud50c\ub85c\uc6b0 \ud50c\ub808\uc774\ud2b8, \uc801\uc808\ud55c \ud50c\ub7ed\uc2a4 \ubc0f \ud655\ub300 \uc7a5\ube44\ub97c \uc0ac\uc6a9\ud574 \uc870\ub9bd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18 \ub0a9\ub55c \uc778\ub450\ub9cc\uc73c\ub85c\ub294 \uc911\uc559 \ub178\ucd9c \ud328\ub4dc\uc5d0 \uc548\uc815\uc801\uc73c\ub85c \uc811\uadfc\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc591\uc0b0 \uc870\ub9bd\uc5d0\ub294 \uc81c\uc5b4\ub41c SMT \uacf5\uc815\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \ub178\ucd9c \ud328\ub4dc\ub294 \ubc18\ub4dc\uc2dc \uc811\uc9c0\uc5d0 \uc5f0\uacb0\ud574\uc57c \ud558\ub098\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc544\ub2d9\ub2c8\ub2e4. \uc811\uc9c0\uc5d0 \uc5f0\uacb0\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc9c0\ub9cc, \uc62c\ubc14\ub978 \ub124\ud2b8\ub294 \uc18c\uc790\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4. \uc798\ubabb \uc5f0\uacb0\ud558\uba74 \uc624\uc791\ub3d9, \uc7a1\uc74c, \uacfc\uc5f4 \ub610\ub294 \uc9c1\uc811 \ub2e8\ub77d\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \uc194\ub354 \uc811\ud569\ubd80\ub294 \uc5b4\ub5bb\uac8c \uac80\uc0ac\ud558\ub098\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud328\ud0a4\uc9c0 \uc704\uce58\uc640 \ubcf4\uc774\ub294 \uac00\uc7a5\uc790\ub9ac \ubd80\ubd84\uc740 \uc721\uc548 \uac80\uc0ac \ub610\ub294 \uc790\ub3d9 \uad11\ud559 \uac80\uc0ac\ub85c \ud655\uc778\ud55c \ub4a4, \uc228\uaca8\uc9c4 \uc194\ub354 \ubd84\ud3ec, \ube0c\ub9ac\uc9c0, \ubbf8\ub0a9\ub55c \ubc0f \ubcf4\uc774\ub4dc\ub97c X\uc120\uc73c\ub85c \uac80\uc0ac\ud558\uc138\uc694. \uc804\uae30 \uac80\uc0ac\uc640 \uae30\ub2a5 \uac80\uc0ac\ub97c \ucd94\uac00\ub85c \uc218\ud589\ud558\uba74 \uac80\uc0ac \ubc94\uc704\ub97c \ub113\ud790 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uce21\uba74 \ub0a9\ub55c \uac00\ub2a5\ud615 QFN\uc740 \ub458\ub808\uc758 \ud544\ub81b\uc744 \uad11\ud559\uc801\uc73c\ub85c \ub354 \uc27d\uac8c \uac80\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QFN \uc5f4 \ud328\ub4dc \uc544\ub798\uc5d0 \ubcf4\uc774\ub4dc\uac00 \uc0dd\uae30\ub294 \uc6d0\uc778\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc6d0\uc778\uc73c\ub85c\ub294 \ud50c\ub7ed\uc2a4 \uac00\uc2a4 \ubc29\ucd9c, \uacfc\ub3c4\ud55c \ud398\uc774\uc2a4\ud2b8 \ub3c4\ud3ec, \uc11c\ub85c \uc5f0\uacb0\ub41c \ud070 \uc2a4\ud150\uc2e4 \uac1c\uad6c\ubd80, \uc194\ub354\uc758 \ube44\uc544 \uc720\uc785, \ubd80\uc801\uc808\ud55c \ub9ac\ud50c\ub85c\uc6b0 \ud504\ub85c\ud30c\uc77c \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud150\uc2e4 \uac1c\uad6c\ubd80 \ubd84\ud560, \ud398\uc774\uc2a4\ud2b8 \uc591 \uc870\uc808, \uc801\uc808\ud55c \ube44\uc544 \ucc98\ub9ac, \uac80\uc99d\ub41c \uc5f4 \ud504\ub85c\ud30c\uc77c\uc744 \ud1b5\ud574 \ubcf4\uc774\ub4dc \ubc1c\uc0dd\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uacb0\ub860<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QFN \ud328\ud0a4\uc9c0\ub294 \uc791\uc740 \uacf5\uac04\uc744 \ucc28\uc9c0\ud558\uba74\uc11c \uc804\uae30\uc801 \uc5f0\uacb0 \uae38\uc774\uac00 \uc9e7\uace0 PCB\ub85c \uc5f4\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \uc804\ub2ec\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7a5\uc810 \ub355\ubd84\uc5d0 \uace0\ubc00\ub3c4, \uace0\uc8fc\ud30c \ubc0f \uc804\ub825 \ud6a8\uc728\uc774 \uc911\uc694\ud55c \uc804\uc790\uae30\uae30\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc131\ub2a5\uc740 PCB \ub79c\ub4dc \ud328\ud134\uacfc \uc870\ub9bd \uacf5\uc815\uc5d0 \ud06c\uac8c \uc88c\uc6b0\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\uc7a5 \uc548\uc804\ud55c \ubc29\ubc95\uc740 \uac04\ub2e8\ud569\ub2c8\ub2e4. \uc81c\uc870\uc5c5\uccb4\uc758 \ub79c\ub4dc \ud328\ud134\uc744 \uc815\ud655\ud788 \uc0ac\uc6a9\ud558\uace0, \ub178\ucd9c \ud328\ub4dc\uc758 \ub124\ud2b8\ub97c \ud655\uc778\ud558\uba70, \uc0dd\uc0b0 \ud30c\ud2b8\ub108\uc640 \ube44\uc544 \ubc0f \uc2a4\ud150\uc2e4 \uc124\uacc4\ub97c \ud611\uc758\ud558\uace0, \uc801\uc808\ud55c \uc7a5\ube44\ub85c \uc228\uaca8\uc9c4 \uc811\ud569\ubd80\ub97c \uac80\uc0ac\ud558\uc138\uc694. \uc81c\uc791 \uc804\uc5d0 \uc9e7\uac8c\ub77c\ub3c4 \uc81c\uc870 \uc6a9\uc774\uc131 \uac80\ud1a0\ub97c \uc9c4\ud589\ud558\uba74 \uc774\ud6c4\uc5d0 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ube0c\ub9ac\uc9d5, \ubcf4\uc774\ub4dc, \ubc29\ud5a5 \ubc0f \uc5f4 \ubb38\uc81c\ub85c \uc778\ud55c \ube44\uc6a9 \ubd80\ub2f4\uc744 \ub9c9\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>QFN packages appear in everything from power supplies and wireless modules to sensors, microcontrollers, and automotive electronics. Their small footprint, short electrical paths, and efficient heat transfer make them an attractive alternative to larger leaded packages. However, the same underside connections that save space also make QFN footprint design, soldering, and inspection less forgiving. So, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23538,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"What Are QFN Packages? Types, Benefits & PCB Design Guide","_seopress_titles_desc":"Learn what QFN packages are, how they work, key types and benefits, plus PCB footprint, thermal-pad, stencil, assembly, and inspection guidelines.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[6,2],"tags":[],"class_list":["post-23536","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcb-assembly","category-pcb-design"],"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/posts\/23536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/comments?post=23536"}],"version-history":[{"count":0,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/posts\/23536\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/media\/23538"}],"wp:attachment":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/media?parent=23536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/categories?post=23536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/tags?post=23536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}