{"id":23528,"date":"2026-09-09T07:53:14","date_gmt":"2026-09-09T07:53:14","guid":{"rendered":"https:\/\/lead-pcb.com\/?p=23528"},"modified":"2026-10-21T07:59:47","modified_gmt":"2026-10-21T07:59:47","slug":"pcb-material-guide","status":"publish","type":"post","link":"https:\/\/lead-pcb.com\/ko\/blog\/pcb-material-guide\/","title":{"rendered":"PCB \uc18c\uc7ac \uac00\uc774\ub4dc: \uc885\ub958, \ud2b9\uc131 \ubc0f \uc120\ud0dd"},"content":{"rendered":"<p class=\"wp-block-paragraph\">PCB \uc18c\uc7ac\ub294 \ud68c\ub85c \uae30\ud310\uc758 \ubb3c\ub9ac\uc801 \uac15\ub3c4\ubfd0 \uc544\ub2c8\ub77c \ud6e8\uc52c \ub354 \ub9ce\uc740 \uc694\uc18c\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc784\ud53c\ub358\uc2a4, \uc2e0\ud638 \uc190\uc2e4, \ubc29\uc5f4, \uce58\uc218 \uc548\uc815\uc131, \uc870\ub9bd \uc2e0\ub8b0\uc131, \uc81c\uc870 \uc6a9\uc774\uc131, \ub0a9\uae30 \ubc0f \ube44\uc6a9\uc5d0\ub3c4 \uc601\ud5a5\uc744 \uc90d\ub2c8\ub2e4. \uae30\ubcf8 \ucee8\ud2b8\ub864\ub7ec\uc5d0 \uc801\ud569\ud55c \uc18c\uc7ac\ub77c\ub3c4 77GHz \ub808\uc774\ub354 \ubaa8\ub4c8, \uace0\uc804\ub958 LED \uae30\ud310 \ub610\ub294 \uacbd\uc5f0\uc131 \uc758\ub8cc \uae30\uae30\uc5d0\uc11c\ub294 \ubb38\uc81c\uac00 \uc0dd\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubb38\uc81c\ub294 \u201cFR-4\u201d, \u201c\uace0 Tg\u201d, \u201cRogers \uc18c\uc7ac\u201d \uac19\uc740 \uba85\uce6d\ub9cc\uc73c\ub85c\ub294 \uc804\uccb4\uc801\uc778 \ud2b9\uc131\uc744 \uc54c \uc218 \uc5c6\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. <a href=\"https:\/\/lead-pcb.com\/ko\/pcb-manufacturing\/fr-4-pcb\/\" data-type=\"page\" data-id=\"6535\">FR-4 <\/a>\uc740 \ud558\ub098\uc758 \uace0\uc815\ub41c \ubc30\ud569\uc774 \uc544\ub2c8\ub77c \uad11\ubc94\uc704\ud55c \uc18c\uc7ac \ubd84\ub958\ub97c \uac00\ub9ac\ud0a4\uba70, Rogers\ub294 \uc5ec\ub7ec \ub77c\ubbf8\ub124\uc774\ud2b8 \uc81c\ud488\uad70\uc744 \ubcf4\uc720\ud55c \uc81c\uc870\uc5c5\uccb4\uc785\ub2c8\ub2e4. \uc2e4\uc81c \uc131\ub2a5\uc740 \uc218\uc9c0 \uc2dc\uc2a4\ud15c, \uc720\ub9ac \ubcf4\uac15\uc7ac, \ub3d9\ubc15 \ud45c\uba74 \ud504\ub85c\ud30c\uc77c, \uacbd\ud654 \ud6c4 \uad6c\uc870, \uc2dc\ud5d8 \ubc29\ubc95 \ubc0f \uc791\ub3d9 \uc8fc\ud30c\uc218\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 \uc8fc\uc694 PCB \uc18c\uc7ac \uc720\ud615\uacfc \uc911\uc694\ud55c \ud2b9\uc131\uc744 \uc0b4\ud3b4\ubcf4\uace0, \uc6a9\ub3c4\uc5d0 \ub9de\ub294 \ub77c\ubbf8\ub124\uc774\ud2b8\ub97c \uc120\ud0dd\ud558\uace0 \uc0ac\uc591\uc744 \uc815\ud558\ub294 \uc2e4\uc6a9\uc801\uc778 \uc808\ucc28\ub97c \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>\ub300\ubd80\ubd84\uc758 \uacbd\uc131 PCB\uc5d0\ub294 FR-4\uac00 \ud45c\uc900 \uc120\ud0dd\uc785\ub2c8\ub2e4<\/strong>, \ud558\uc9c0\ub9cc Dk, Df, Tg, CTE \ubc0f \ub0b4\uc2b5\uc131\uc740 \uc81c\ud488\uacfc \uad6c\uc870\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc2e0\ud638 \uc18d\ub3c4\ub9cc\uc73c\ub85c \uc18c\uc7ac\ub97c \uacb0\uc815\ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4.<\/strong> \ucc44\ub110 \uae38\uc774, \uc0c1\uc2b9 \uc2dc\uac04, \uc0bd\uc785 \uc190\uc2e4 \uc608\uc0b0, \uc8fc\ud30c\uc218, \uc2a4\ud0dd\uc5c5, \ub3d9\ubc15 \uac70\uce60\uae30 \ubc0f \ubc30\uc120 \ud615\uc0c1\uc774 \ubaa8\ub450 \uc911\uc694\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>Tg\ub9cc\uc73c\ub85c\ub294 \uc5f4 \uc2e0\ub8b0\uc131\uc744 \uc644\uc804\ud788 \ud3c9\uac00\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/strong> \ubd84\ud574 \uc628\ub3c4, Z\ucd95 \ud33d\ucc3d, \ubc15\ub9ac \uc2dc\uac04, \ud761\uc2b5\ub960 \ubc0f \uc870\ub9bd \ud504\ub85c\ud30c\uc77c\ub3c4 \ud3c9\uac00\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc5f4\uc804\ub3c4\uc131 \uc18c\uc7ac\uc640 \uace0\uc628\uc6a9 \uc18c\uc7ac\ub294 \uc11c\ub85c \ub2e4\ub978 \ubb38\uc81c\ub97c \ud574\uacb0\ud569\ub2c8\ub2e4.<\/strong> \uba54\ud0c8 \ucf54\uc5b4\uc640 \uc138\ub77c\ubbf9 \uae30\ud310\uc740 \uc5f4\uc744 \uc804\ub2ec\ud558\uba70, \uace0 Tg \ub77c\ubbf8\ub124\uc774\ud2b8\ub294 \uc5f0\ud654\uc640 \ud33d\ucc3d\uc744 \uc5b5\uc81c\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc81c\uc5b4 \uc784\ud53c\ub358\uc2a4 \uc124\uacc4\uc5d0\ub294 \ub77c\ubbf8\ub124\uc774\ud2b8\ubcc4 \ub370\uc774\ud130\ub97c \uc0ac\uc6a9\ud558\uc138\uc694.<\/strong> \uc77c\ubc18\uc801\uc778 \uc628\ub77c\uc778 Dk \uac12\uc740 \ucd5c\uc885 \ud544\ub4dc \uc194\ubc84 \uacc4\uc0b0\uc5d0 \uc0ac\uc6a9\ud558\uae30\uc5d0 \ucda9\ubd84\ud788 \uc2e0\ub8b0\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc18c\uc7ac \ub300\uccb4\ub294 \uc2b9\uc778\uc744 \ubc1b\uc544\uc57c \ud569\ub2c8\ub2e4<\/strong>, \ud2b9\ud788 RF, \uace0\uc18d, \uc790\ub3d9\ucc28, \uc758\ub8cc, \ud56d\uacf5\uc6b0\uc8fc \ub610\ub294 \uc774\ubbf8 \uc778\uc99d\uc744 \ub9c8\uce5c \uc81c\ud488\uc5d0 \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">PCB \uc18c\uc7ac\ub780?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc73c\ub85c <em>PCB \uc18c\uc7ac<\/em> \ub294 \uad6c\ub9ac \ud68c\ub85c\ub97c \uc9c0\uc9c0\ud558\uace0 \uc11c\ub85c \ubd84\ub9ac\ud558\ub294 \uc808\uc5f0 \uae30\ud310 \ubc0f \uc811\ucc29 \uc18c\uc7ac\ub97c \ub73b\ud569\ub2c8\ub2e4. \ub2e4\uce35 \uacbd\uc131 PCB\uc5d0\uc11c\ub294 \uc774\ub7ec\ud55c \uc18c\uc7ac\uac00 \ub2e4\uc74c\uacfc \uac19\uc740 \ud615\ud0dc\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub3d9\ubc15 \uc801\uce35 \ucf54\uc5b4:<\/strong> \ud55c\ucabd \ub610\ub294 \uc591\ucabd\uc5d0 \ub3d9\ubc15\uc744 \uc785\ud78c \uc644\uc804 \uacbd\ud654 \uc720\uc804\uccb4 \uc2dc\ud2b8\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud504\ub9ac\ud504\ub808\uadf8:<\/strong> \uc801\uce35 \uacfc\uc815\uc5d0\uc11c \ud750\ub974\uba70 \uce35\ub4e4\uc744 \uc811\ud569\ud558\ub294, \uc218\uc9c0\uac00 \ucf54\ud305\ub41c \ubc18\uacbd\ud654 \ubcf4\uac15\uc7ac\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub3d9\ubc15:<\/strong> \uc5d0\uce6d\ud558\uc5ec \ud2b8\ub808\uc774\uc2a4, \ud328\ub4dc, \ud50c\ub808\uc778 \ubc0f \uae30\ud0c0 \ud328\ud134\uc744 \ud615\uc131\ud558\ub294 \uc804\ub3c4\uce35\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc194\ub354 \ub9c8\uc2a4\ud06c \ubc0f \ud45c\uba74 \ucc98\ub9ac:<\/strong> \uae30\ud310\uacfc \ub178\ucd9c\ub41c \uad6c\ub9ac\ub97c \ubcf4\ud638\ud558\ub294 \uc678\uce35 \uc2dc\uc2a4\ud15c\uc785\ub2c8\ub2e4. \ub2e4\ub9cc \uc77c\ubc18\uc801\uc73c\ub85c \uae30\ubcf8 \ub77c\ubbf8\ub124\uc774\ud2b8\ub85c \ubd84\ub958\ub418\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uacbd\uc131 \ubc0f \ub2e4\uce35 \uae30\ud310\uc758 \uacbd\uc6b0 IPC-4101\uc5d0\uc11c \ub77c\ubbf8\ub124\uc774\ud2b8 \ubc0f \ud504\ub9ac\ud504\ub808\uadf8 \uc0ac\uc591\uc11c\uc758 \uc694\uad6c\uc0ac\ud56d\uc744 \uaddc\uc815\ud569\ub2c8\ub2e4. \uace0\uc18d \ubc0f \uace0\uc8fc\ud30c \uae30\ubcf8 \uc18c\uc7ac\ub294 IPC-4103\uc5d0\uc11c \ub2e4\ub8e8\uba70, IPC-4204\ub294 \uc720\uc5f0\uc131 \uae08\uc18d \ud074\ub798\ub4dc \uc720\uc804\uccb4 \uc18c\uc7ac\ub97c \ub2e4\ub8f9\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud45c\uc900\uc740 \uc18c\uc7ac \uc778\uc99d \uae30\uc900\uc744 \uc815\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\uc9c0\ub9cc, \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ub370\uc774\ud130\ub97c \uc5bb\uc73c\ub824\uba74 \uc124\uacc4\uc790\uac00 \uad6c\uccb4\uc801\uc778 \ub77c\ubbf8\ub124\uc774\ud2b8 \uc81c\ud488\uad70\uacfc \uad6c\uc870\ub97c \uc9c0\uc815\ud574\uc57c \ud569\ub2c8\ub2e4 (<a href=\"https:\/\/www.ipc.org\/ipc-validation-services-qualified-products-list-qpl-ipc-4101\">IPC-4101<\/a>, <a href=\"https:\/\/www.ipc.org\/ipc-validation-services-qualified-products-list-qpl-ipc-4103\">IPC-4103<\/a>, <a href=\"https:\/\/shop.ipc.org\/ipc-4204\/ipc-4204-standard-only\">IPC-4204<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 PCB\uc5d0\uc11c \uc775\uc219\ud558\uac8c \ubcfc \uc218 \uc788\ub294 \ub179\uc0c9\uc740 FR-4\ub098 \ub2e4\ub978 \uae30\ud310 \uc18c\uc7ac\uac00 \uc544\ub2c8\ub77c \uc194\ub354 \ub9c8\uc2a4\ud06c\uc758 \uc0c9\uc785\ub2c8\ub2e4. \uae30\ubcf8 \ub77c\ubbf8\ub124\uc774\ud2b8\ub294 \uc678\ubd80 \ucf54\ud305\uc744 \uc801\uc6a9\ud558\uae30 \uc804\uc5d0\ub294 \ub300\uac1c \uc605\uc740\uc0c9, \ud638\ubc15\uc0c9, \ud770\uc0c9 \ub610\ub294 \ud68c\ubc31\uc0c9\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"563\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/pcb-material-exploded-stackup-diagram.webp\" alt=\"pcb material exploded stackup diagram\" class=\"wp-image-23532\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/pcb-material-exploded-stackup-diagram.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/pcb-material-exploded-stackup-diagram-300x169.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/pcb-material-exploded-stackup-diagram-768x432.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/pcb-material-exploded-stackup-diagram-18x10.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">PCB \uc18c\uc7ac \ube44\uad50\ud45c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c \ubc94\uc704\ub294 \ub300\ub7b5\uc801\uc778 \uc120\ubcc4 \uae30\uc900\uc774\uba70, \uad6c\ub9e4 \uc0ac\uc591\uc73c\ub85c \uc0ac\uc6a9\ud558\uae30 \uc704\ud55c \uac12\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc2e4\uc81c \uac12\uc740 \ub4f1\uae09, \uc218\uc9c0 \ud568\ub7c9, \uc720\ub9ac \uc12c\uc720 \uc9c1\uc870, \ub450\uaed8, \uc8fc\ud30c\uc218 \ubc0f \uc2dc\ud5d8 \ubc29\ubc95\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>PCB \uc18c\uc7ac \uc720\ud615<\/th><th>\uc77c\ubc18\uc801\uc778 \uc804\uae30\uc801 \ud2b9\uc131<\/th><th>\uc5f4\uc801\u00b7\uae30\uacc4\uc801 \uac15\uc810<\/th><th>\uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4<\/th><th>\uc0c1\ub300\uc801 \ube44\uc6a9<\/th><\/tr><tr><td>CEM-1 \/ CEM-3<\/td><td>Dk\ub294 \ubcf4\ud1b5 \uc218\uc900\uc774\uba70 \uc190\uc2e4\uc740 \ube44\uad50\uc801 \ud07c<\/td><td>\uc694\uad6c \uc218\uc900\uc774 \ub0ae\uc740 \uae30\ud310\uc5d0\ub294 \uc801\ud569\ud558\uc9c0\ub9cc \ub2e4\uce35 \uae30\ud310 \uc801\uc6a9\uc5d0\ub294 \uc81c\ud55c\uc774 \uc788\uc74c<\/td><td>\uac00\uc804\uc81c\ud488, \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58, \ub2e8\uc21c\ud55c \ub2e8\uba74 \ub610\ub294 \uc591\uba74 \uae30\ud310<\/td><td>\ub0ae\uc74c<\/td><\/tr><tr><td>\ud45c\uc900 FR-4<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c Dk\ub294 \uc57d 3.8\u20134.6\uc774\uba70 \uc190\uc2e4\uc740 \ubcf4\ud1b5 \uc218\uc900<\/td><td>\uac15\uc131\uc774 \uc6b0\uc218\ud558\uace0 \uac00\uacf5\uc774 \uc26c\uc6b0\uba70 \uc804\ubc18\uc801\uc778 \uc2e0\ub8b0\uc131\uc774 \ub192\uc74c<\/td><td>\uc0b0\uc5c5\uc6a9 \uc81c\uc5b4 \uc7a5\uce58, \uc18c\ube44\uc790 \uc81c\ud488, \ucef4\ud4e8\ud130, \uc77c\ubc18 \uc804\uc790\uae30\uae30<\/td><td>\uc18c\ub7c9\uc5d0\uc11c \uc911\uac04 \uaddc\ubaa8<\/td><\/tr><tr><td>\uace0 Tg \/ \uace0\uc2e0\ub8b0\uc131 FR-4<\/td><td>\uc804\uae30\uc801 \ud2b9\uc131 \ubc94\uc704\ub294 FR-4\uc640 \ube44\uc2b7\ud558\uba70 \uc190\uc2e4\uc740 \ub4f1\uae09\uc5d0 \ub530\ub77c \ub2e4\ub984<\/td><td>\uc801\uc808\ud55c Td \ubc0f CTE\uc640 \ud568\uaed8 \uc0ac\uc6a9\ud558\uba74 \uc5f4 \uc0ac\uc774\ud074 \ubc0f \ubb34\uc5f0 \uc870\ub9bd \uc131\ub2a5\uc774 \ud5a5\uc0c1\ub428<\/td><td>\uc790\ub3d9\ucc28\u00b7\uc0b0\uc5c5\uc6a9, \ub450\uaebc\uc6b4 \ubcf4\ub4dc \ub610\ub294 \uce35\uc218\uac00 \ub9ce\uc740 \ubcf4\ub4dc<\/td><td>\uc911\uac04<\/td><\/tr><tr><td>\uc800\uc190\uc2e4 \uace0\uc18d \ub77c\ubbf8\ub124\uc774\ud2b8<\/td><td>\uc77c\ubc18 FR-4\ubcf4\ub2e4 Dk\uac00 \uc548\uc815\uc801\uc774\uace0 Df\uac00 \ub0ae\uc74c<\/td><td>\uc77c\ubc18\uc801\uc778 \ub2e4\uce35 \uae30\ud310 \uc81c\uc870 \uacf5\uc815\uacfc \ud638\ud658\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc74c<\/td><td>\uc11c\ubc84, \ub124\ud2b8\uc6cc\ud0b9, \uace0\uc18d \ubc31\ud50c\ub808\uc778, \ub370\uc774\ud130 \uc218\uc9d1<\/td><td>\uc911\uac04~\ub192\uc74c<\/td><\/tr><tr><td>\ud0c4\ud654\uc218\uc18c-\uc138\ub77c\ubbf9 \ub77c\ubbf8\ub124\uc774\ud2b8<\/td><td>Dk \uc81c\uc5b4 \ubc0f \ub0ae\uc740 \uc190\uc2e4<\/td><td>\ub9ce\uc740 PTFE \uc2dc\uc2a4\ud15c\ubcf4\ub2e4 \uac00\uacf5\uc774 \uc26c\uc6b0\uba74\uc11c \uc6b0\uc218\ud55c RF \uc131\ub2a5<\/td><td>RF \uc804\ub825, \uc548\ud14c\ub098, \uae30\uc9c0\uad6d, \uc790\ub3d9\ucc28 \ub808\uc774\ub354<\/td><td>\ub300\ub7c9<\/td><\/tr><tr><td>PTFE \uae30\ubc18 \ub77c\ubbf8\ub124\uc774\ud2b8<\/td><td>\ub9e4\uc6b0 \ub0ae\uc740 \uc190\uc2e4; Dk\ub294 \ub300\uccb4\ub85c \uc57d 2.1~3.5<\/td><td>\ub6f0\uc5b4\ub09c \uace0\uc8fc\ud30c \uc131\ub2a5; \ud2b9\uc218 \uacf5\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc74c<\/td><td>\ub9c8\uc774\ud06c\ub85c\ud30c, \uc704\uc131, \ub808\uc774\ub354, \uace0\uc8fc\ud30c \uc548\ud14c\ub098<\/td><td>\ub300\ub7c9<\/td><\/tr><tr><td>\ud3f4\ub9ac\uc774\ubbf8\ub4dc \ud50c\ub809\uc2a4 \uc18c\uc7ac<\/td><td>\uc587\uc740 \uc720\uc804\uccb4\uc5d0\uc11c\ub3c4 \uc548\uc815\uc801\uc778 \uc804\uae30\uc801 \uc131\ub2a5<\/td><td>\uc720\uc5f0\ud558\uace0 \uc587\uc73c\uba70 \uace0\uc628\uc5d0 \ub300\ud55c \ub0b4\uc131\uc774 \uc788\uc74c<\/td><td>\ud50c\ub809\uc2dc\ube14 \ubc0f \ub9ac\uc9c0\ub4dc-\ud50c\ub809\uc2a4 PCB, \uc6e8\uc5b4\ub7ec\ube14 \uae30\uae30, \uce74\uba54\ub77c, \uc758\ub8cc\uae30\uae30<\/td><td>\uc911\uac04~\ub192\uc74c<\/td><\/tr><tr><td>\uba54\ud0c8 \ucf54\uc5b4 PCB \uc18c\uc7ac<\/td><td>\uc804\uae30\uc801 \uc131\ub2a5\uc740 \uc587\uc740 \uc720\uc804\uccb4\uce35\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d0<\/td><td>\uc54c\ub8e8\ubbf8\ub284 \ub610\ub294 \uad6c\ub9ac \ubca0\uc774\uc2a4\ub97c \ud1b5\ud574 \uc5f4\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \ud655\uc0b0<\/td><td>LED \uc870\uba85, \ubaa8\ud130 \uad6c\ub3d9 \uc7a5\uce58, \uc804\ub825 \ubcc0\ud658\uae30<\/td><td>\uc911\uac04<\/td><\/tr><tr><td>\uc138\ub77c\ubbf9 \uae30\ud310<\/td><td>\ub0ae\uc740 \uc190\uc2e4\uacfc \ub192\uc740 \uc808\uc5f0 \ub0b4\ub825; Dk\ub294 \uc138\ub77c\ubbf9 \uc885\ub958\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d0<\/td><td>\ub6f0\uc5b4\ub09c \uc5f4\uc804\ub2ec \ubc0f \uce58\uc218 \uc548\uc815\uc131<\/td><td>\uc804\ub825 \ubaa8\ub4c8, RF \ubaa8\ub4c8, \uace0\uc628 \uc804\uc790\uae30\uae30<\/td><td>\ub9e4\uc6b0 \ub192\uc74c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">PCB \uc18c\uc7ac\uc758 \uc8fc\uc694 \uc720\ud615<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud45c\uc900 FR-4 PCB \uc18c\uc7ac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/lead-pcb.com\/ko\/blog\/fr-4-material-properties\/\" data-type=\"post\" data-id=\"7918\">FR-4<\/a> \ub09c\uc5f0\uc131 \uc720\ub9ac\uc12c\uc720 \uac15\ud654 \uc5d0\ud3ed\uc2dc \ub77c\ubbf8\ub124\uc774\ud2b8 \uacc4\uc5f4\ub85c, \ub300\ubd80\ubd84\uc758 \uacbd\uc131 \uae30\ud310\uc5d0 \uae30\ubcf8\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 PCB \uae30\ud310 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \uc804\uae30 \uc808\uc5f0\uc131, \uae30\uacc4\uc801 \uac15\uc131, \ub0b4\uc2b5\uc131, \uc804 \uc138\uacc4\uc801\uc778 \uacf5\uae09\ub9dd, \uc81c\uc870 \ube44\uc6a9 \uac04\uc758 \uade0\ud615\uc774 \uc6b0\uc218\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uc900 FR-4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc124\uacc4\uc758 \ub370\uc774\ud130 \uc804\uc1a1\ub960\uacfc \ubc30\uc120 \uae38\uc774\uac00 \uc911\uac04 \uc218\uc900\uc778 \uacbd\uc6b0.<\/li>\n\n\n\n<li>\uc791\ub3d9 \ubc0f \uc870\ub9bd \uc628\ub3c4\uac00 \uc120\ud0dd\ud55c \ub4f1\uae09\uc758 \ud5c8\uc6a9 \ubc94\uc704 \uc548\uc5d0 \uc788\ub294 \uacbd\uc6b0.<\/li>\n\n\n\n<li>\uad6c\ub9ac \uba74, \uc5f4 \ube44\uc544, \uacf5\uae30 \ud750\ub984 \ub610\ub294 \ubcc4\ub3c4\uc758 \ubc29\uc5f4\ud310\uc744 \ud1b5\ud574 \uc5f4\uc744 \uad00\ub9ac\ud558\ub294 \uacbd\uc6b0.<\/li>\n\n\n\n<li>\uc81c\ud488\uc5d0 \ub9e4\uc6b0 \ub0ae\uc740 RF \uc190\uc2e4\uc774 \uc694\uad6c\ub418\uc9c0 \uc54a\ub294 \uacbd\uc6b0.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7ec\ub098 \ub2e8\uc21c\ud788 \u201cFR-4\u201d\ub77c\uace0\ub9cc \uc9c0\uc815\ud558\uba74 \uc911\uc694\ud55c \uc138\ubd80 \uc0ac\ud56d\uc774 \ubd88\uba85\ud655\ud558\uac8c \ub0a8\uc2b5\ub2c8\ub2e4. \uc800\uac00\ud615 130\u00b0C Tg \ub77c\ubbf8\ub124\uc774\ud2b8\uc640 \uace0\uc2e0\ub8b0\uc131 180\u00b0C Tg \ub77c\ubbf8\ub124\uc774\ud2b8\ub294 \ubaa8\ub450 FR-4\ub85c \ud310\ub9e4\ub420 \uc218 \uc788\uc9c0\ub9cc, \ubb34\uc5f0 \uc870\ub9bd \ubc0f \uc5f4 \uc0ac\uc774\ud074\ub9c1 \uc911\uc5d0\ub294 \uc11c\ub85c \ub2e4\ub974\uac8c \uc791\ub3d9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 Isola\ub294 370HR\uc744 \uc5f4 \uc694\uad6c\uac00 \ub192\uc740 \ub2e4\uce35 \uae30\ud310\uc6a9 180\u00b0C Tg FR-4 \uc2dc\uc2a4\ud15c\uc73c\ub85c \uc18c\uac1c\ud569\ub2c8\ub2e4 (<a href=\"https:\/\/www.isola-group.com\/pcb-laminates-prepreg\/370hr-laminate-prepreg\/\">Isola 370HR<\/a>).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uace0Tg \ubc0f \uace0\uc2e0\ub8b0\uc131 FR-4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uace0Tg FR-4\ub294 \ub354 \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c\ub3c4 \uacbd\uc9c8 \uc720\ub9ac \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\ub294 \uc218\uc9c0 \uc2dc\uc2a4\ud15c\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub9ac\ud50c\ub85c, \uc7ac\uc791\uc5c5 \ubc0f \uc0ac\uc6a9 \uc911 \uc5f4\ud33d\ucc3d\uc73c\ub85c \uc778\ud55c \uc751\ub825\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \uae30\ud310, \ub9ce\uc740 \uce35\uc218, \ubc18\ubcf5\uc801\uc778 \uc5f4 \uc0ac\uc774\ud074 \ubc0f \ubb34\uc5f0 \uc870\ub9bd\uc5d0 \ud754\ud788 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tg\ub9cc\uc73c\ub85c \uc18c\uc7ac\ub97c \uc120\ud0dd\ud558\uc9c0 \ub9c8\uc138\uc694. Tg\uac00 \uac19\uc740 \ub450 \uc18c\uc7ac\ub77c\ub3c4 \ubd84\ud574 \uc628\ub3c4, Z\ucd95 CTE, T288 \uc131\ub2a5, \uc218\ubd84 \ud761\uc218\uc728 \ubc0f \uad6c\ub9ac \uc811\ucc29\ub825\uc774 \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5f4 \uc0ac\uc774\ud074\uc774\ub098 \ud639\ub3c5\ud55c \ud658\uacbd\uc5d0 \ub178\ucd9c\ub418\ub294 \uc81c\ud488\uc5d0\uc11c\ub294 CAF \ub0b4\uc131\uacfc \uc7a5\uae30 \uc5f4 \ub178\ud654 \ub370\uc774\ud130\uac00 \ub300\ud45c Tg \uac12\ub9cc\ud07c \uc911\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uace0\uc18d \ub514\uc9c0\ud138 PCB\uc6a9 \uc800\uc190\uc2e4 \uc18c\uc7ac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uace0\uc18d \ub514\uc9c0\ud138 \ub77c\ubbf8\ub124\uc774\ud2b8\ub294 \ubc94\uc6a9 FR-4\ubcf4\ub2e4 \uc720\uc804\uccb4 \uc190\uc2e4\uc744 \uc904\uc774\uace0 \uc804\uae30\uc801 \ud2b9\uc131\uc744 \ub354 \uc815\ubc00\ud558\uac8c \uc81c\uc5b4\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uae34 \ucc44\ub110, \ube60\ub978 \uc5d0\uc9c0 \uc18d\ub3c4, \ub192\uc740 \ub098\uc774\ud034\uc2a4\ud2b8 \uc8fc\ud30c\uc218 \ub610\ub294 \uc5c4\uaca9\ud55c \uc0bd\uc785 \uc190\uc2e4 \ud55c\uacc4\ub85c \uc778\ud574 \ud45c\uc900 \uc18c\uc7ac\uc758 \uc0ac\uc6a9\uc774 \uc704\ud5d8\ud560 \uc218 \uc788\ub294 \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc801\uc6a9 \ubd84\uc57c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uace0\uc18d \uc11c\ubc84 \ubc0f \uc2a4\ud1a0\ub9ac\uc9c0 \uc2dc\uc2a4\ud15c<\/li>\n\n\n\n<li>\ub124\ud2b8\uc6cc\ud06c \uc2a4\uc704\uce58 \ubc0f \ub77c\uc6b0\ud130<\/li>\n\n\n\n<li>\ubc31\ud50c\ub808\uc778 \ubc0f \ub77c\uc778 \uce74\ub4dc<\/li>\n\n\n\n<li>FPGA \ubc0f \ud504\ub85c\uc138\uc11c \ud50c\ub7ab\ud3fc<\/li>\n\n\n\n<li>\uace0\ud574\uc0c1\ub3c4 \ud14c\uc2a4\ud2b8 \ubc0f \uacc4\uce21 \uc7a5\ube44<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \uc18c\uc7ac\uc5d0\ub294 \ubcc0\uc131 \uc5d0\ud3ed\uc2dc, PPE\/PPO, \ud0c4\ud654\uc218\uc18c \ub610\ub294 \uae30\ud0c0 \uc218\uc9c0 \uc2dc\uc2a4\ud15c\uc774 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 Panasonic\uc740 MEGTRON 6 \uc81c\ud488\uad70\uc744 \uace0\uc18d\u00b7\ucd08\uc800\uc190\uc2e4 \ub124\ud2b8\uc6cc\ud0b9 \ubc0f \ubb34\uc120 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9\uc73c\ub85c \uc18c\uac1c\ud569\ub2c8\ub2e4 (<a href=\"https:\/\/na.industrial.panasonic.com\/products\/electronic-materials\/circuit-board-materials\/lineup\/megtron-series\/series\/127603\">Panasonic MEGTRON 6<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Low-loss material is not automatically required every time a fast interface appears on a schematic. A short PCIe, USB, or memory channel may meet its budget on a suitable FR-4 construction, while a long, densely routed channel at the same data rate may not. Model the complete interconnect before upgrading every layer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">RF and Microwave PCB Materials<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">RF laminates prioritize controlled dielectric constant, low dissipation factor, thickness tolerance, and electrical stability across frequency and temperature. The two common groups are hydrocarbon-ceramic laminates and PTFE-based laminates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hydrocarbon-ceramic systems can provide low loss with fabrication processes closer to conventional FR-4. PTFE materials offer excellent microwave performance but may require special surface preparation, drilling parameters, plasma treatment, or bonding processes. Material selection should account for both RF performance and the chosen PCB factory\u2019s processing capability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For mixed-signal products, a hybrid stackup can use RF laminate only on critical layers and FR-4-compatible material elsewhere. This can reduce cost, but differences in CTE, resin flow, adhesion, and lamination behavior must be reviewed before release.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Flexible and Rigid-Flex PCB Materials<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Polyimide is the most common dielectric for <a href=\"https:\/\/lead-pcb.com\/ko\/pcb-manufacturing\/flex-pcb\/\" data-type=\"page\" data-id=\"3687\">flexible circuits<\/a> because it combines thin construction, bend capability, temperature resistance, and useful electrical properties. Flex material systems can be adhesive-based or adhesiveless; adhesiveless constructions are often preferred for thinner circuits, tighter bends, and demanding reliability requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DuPont\u2019s Pyralux portfolio, for example, includes polyimide-based copper-clad laminates, coverlays, bondplies, and adhesives for flex and rigid-flex stackups.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Material selection for a flex PCB must consider more than the dielectric film. Rolled-annealed versus electrodeposited copper, copper grain direction, coverlay, adhesive thickness, bend radius, and whether the bend is static or dynamic all affect service life. The flex area should remain thin and mechanically balanced whenever possible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Polyester film can be economical for simple, low-temperature flexible circuits, such as membrane switches, but it has a narrower processing and operating window than polyimide.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"563\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/flexible-and-rigid-flex-pcb-bending-display.webp\" alt=\"flexible and rigid flex pcb bending display\" class=\"wp-image-23534\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/flexible-and-rigid-flex-pcb-bending-display.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/flexible-and-rigid-flex-pcb-bending-display-300x169.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/flexible-and-rigid-flex-pcb-bending-display-768x432.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/flexible-and-rigid-flex-pcb-bending-display-18x10.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Metal-Core PCB Materials<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A metal-core PCB normally consists of a copper circuit layer, a thin thermally conductive dielectric, and an aluminum or copper base. The metal spreads heat laterally and helps move it toward a heat sink, enclosure, or ambient air.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common uses include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-power LED lighting<\/li>\n\n\n\n<li>Motor controllers<\/li>\n\n\n\n<li>\uc804\ub825 \ubcc0\ud658<\/li>\n\n\n\n<li>Automotive lighting<\/li>\n\n\n\n<li>High-current industrial electronics<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The advertised thermal conductivity of the dielectric is only one part of the thermal path. Dielectric thickness, copper coverage, component footprint, interface material, base-plate thickness, mounting pressure, and heat-sink design can dominate the final junction-to-ambient temperature. Request a complete thermal stack rather than choosing an MCPCB from one conductivity number.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"563\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/mcpcb-and-ceramic-pcb-thermal-heat-spread-vector-cross-section.webp\" alt=\"mcpcb and ceramic pcb thermal heat spread vector : cross section\" class=\"wp-image-23535\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/mcpcb-and-ceramic-pcb-thermal-heat-spread-vector-cross-section.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/mcpcb-and-ceramic-pcb-thermal-heat-spread-vector-cross-section-300x169.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/mcpcb-and-ceramic-pcb-thermal-heat-spread-vector-cross-section-768x432.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/09\/mcpcb-and-ceramic-pcb-thermal-heat-spread-vector-cross-section-18x10.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ceramic PCB Substrates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ceramic substrates such as alumina and aluminum nitride combine electrical insulation with much better thermal conductivity than organic laminates. They also offer strong dimensional stability and can perform in high-temperature or high-power environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alumina is the more economical ceramic option. Aluminum nitride provides substantially higher thermal conductivity and is used where heat density justifies the additional cost. Ceramic boards may use thick-film, thin-film, direct bonded copper, or active-metal brazed structures, each with different design and manufacturing rules.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ceramic is valuable for power electronics, LED modules, RF assemblies, sensors, and harsh-environment products, but it is brittle and more expensive than FR-4 or metal-core material. Mechanical shock, panel utilization, minimum feature sizes, metallization, and attachment methods must be considered early.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PCB Material Properties That Matter<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Dielectric Constant (Dk)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dk, or relative permittivity, affects characteristic impedance, electromagnetic field distribution, and signal propagation speed. A higher Dk generally allows a narrower trace for the same impedance and dielectric thickness, but it also shortens wavelength in the material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Datasheet Dk is not a universal value. It can change with frequency, test method, resin content, glass style, and laminate thickness. Isola notes that different glass-ply constructions and retained resin percentages produce different Dk and Df values (<a href=\"https:\/\/www.isola-group.com\/wp-content\/uploads\/Understanding-Laminate-Prepreg-Manufacturing.pdf\">Isola laminate and prepreg manufacturing guide<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For controlled impedance, use the laminate manufacturer\u2019s recommended design Dk\u2014or a value validated by your PCB fabricator for the exact construction and frequency range\u2014in a field solver.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Dissipation Factor (Df)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Df indicates dielectric energy loss. Lower Df generally means lower insertion loss, which becomes more important as frequency and route length increase. The total channel loss also includes conductor loss, copper roughness, vias, connectors, packages, and discontinuities.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why comparing two materials on Df alone can be misleading. Confirm the test frequency and method, then model the actual stackup and copper profile.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Glass Transition Temperature (Tg)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tg is the temperature range where a thermoset resin changes from a rigid, glassy condition toward a softer, rubber-like condition. Above Tg, expansion\u2014especially through the Z-axis\u2014usually increases. Excessive expansion can stress plated through-holes and raise the risk of barrel cracks or interlayer separation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tg helps screen materials, but it does not define maximum continuous operating temperature and should not be treated as the only reliability metric.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Decomposition Temperature, T260\/T288, and Z-Axis CTE<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Several related properties provide a more complete thermal picture:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Td:<\/strong> the temperature at which a specified percentage of material mass decomposes under the stated test method.<\/li>\n\n\n\n<li><strong>T260 and T288:<\/strong> the time a material resists delamination at 260\u00b0C or 288\u00b0C.<\/li>\n\n\n\n<li><strong>Z-axis CTE:<\/strong> the rate of thickness-direction expansion, usually reported below and above Tg or over a specified temperature range.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For thick multilayer boards, high aspect-ratio vias, multiple lead-free reflow cycles, or intensive rework, these values can be more predictive than Tg alone.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc5f4\uc804\ub3c4\uc728<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thermal conductivity measures how readily heat moves through a material. Standard FR-4 is a thermal insulator compared with copper, aluminum, or ceramic, so thermal vias and copper spreading are often necessary.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do not confuse high Tg with high thermal conductivity. A high-Tg FR-4 may survive elevated temperature better while still moving heat poorly. If rapid heat removal is the goal, evaluate metal-core, heavy-copper, copper-inlay, insulated-metal, or ceramic constructions alongside the mechanical cooling design.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Moisture Absorption and CAF Resistance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Absorbed moisture can change electrical properties and increase assembly risk. It is particularly important in RF products, high-voltage spacing, humid environments, and boards subjected to aggressive reflow.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Conductive anodic filament, or CAF, is an electrochemical failure mechanism that can develop along glass-resin interfaces under voltage, moisture, and contamination. Fine-pitch via fields, small conductor spacing, high voltage, and long service life increase the importance of CAF-resistant material and well-controlled processing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub09c\uc5f0\uc131 \ubc0f \uaddc\uc81c \uc694\uac74<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">UL 94 \ub4f1\uae09\uc740 \uc815\ud574\uc9c4 \ud654\uc5fc \uc2dc\ud5d8\uc5d0\uc11c \ud50c\ub77c\uc2a4\ud2f1 \uc18c\uc7ac\uac00 \uc5b4\ub5bb\uac8c \ubc18\uc751\ud558\ub294\uc9c0\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. V-0, V-1, V-2\ub294 \uc5f0\uc18c \uc2dc\uac04, \uc794\uc5fc \uc2dc\uac04, \ubd88\uaf43\uc744 \ub3d9\ubc18\ud55c \ub099\ud558\ubb3c\uc5d0 \ub530\ub77c \uad6c\ubd84\ub418\ub294 \ubcc4\ub3c4\uc758 \uc218\uc9c1 \uc5f0\uc18c \ub4f1\uae09\uc785\ub2c8\ub2e4. \uc774 \ub4f1\uae09\uc740 \uc81c\ud488\uc774 \ud0c0\uc9c0 \uc54a\ub294\ub2e4\ub294 \ud3ec\uad04\uc801\uc778 \uc758\ubbf8\uac00 \uc544\ub2d9\ub2c8\ub2e4(<a href=\"https:\/\/www.ul.com\/services\/combustion-fire-tests-plastics\">UL Solutions<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc801\uce35\ud310 \uc2dc\uc2a4\ud15c, \uc644\uc131\ub41c \uae30\ud310 \uad6c\uc870, \ub450\uaed8 \ubc0f \uc81c\uc870 \uc2dc\uc124\uc774 \ucd5c\uc885 \uc81c\ud488\uc5d0 \ud544\uc694\ud55c \uc778\uc99d \uc694\uac74\uc744 \ucda9\uc871\ud558\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694. \u201c\ud560\ub85c\uac90 \ud504\ub9ac\u201d, RoHS \uc900\uc218, REACH \uc0c1\ud0dc \ubc0f UL \ub09c\uc5f0\uc131\uc740 \uc11c\ub85c \ub2e4\ub978 \uc694\uac74\uc774\ubbc0\ub85c \uac01\uac01 \ubcc4\ub3c4\ub85c \uba85\uc2dc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\ubc15 \ud45c\uba74 \ud504\ub85c\ud30c\uc77c \ubc0f \uc720\ub9ac \uc9c1\uc870 \uad6c\uc870<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uace0\uc8fc\ud30c\uc5d0\uc11c\ub294 \uc804\ub958\uac00 \ub3c4\uccb4 \ud45c\uba74 \ubd80\uadfc\uc5d0 \uc9d1\uc911\ub429\ub2c8\ub2e4. \uac70\uce5c \uad6c\ub9ac\ub294 \uc720\ud6a8 \uacbd\ub85c \uae38\uc774\uc640 \ub3c4\uccb4 \uc190\uc2e4\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ucd08\uc800\ud504\ub85c\ud30c\uc77c \ub610\ub294 \uadf9\ucd08\uc800\ud504\ub85c\ud30c\uc77c \uad6c\ub9ac\ub294 \uace0\uc18d \ubc0f RF \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc9c0\ub9cc, \uc811\ucc29\ub825\uacfc \uacf5\uc815 \uc694\uac74\ub3c4 \uc5ec\uc804\ud788 \uac80\ud1a0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc720\ub9ac\uc640 \uc218\uc9c0\ub294 \uc720\uc804\uc728\uc774 \uc11c\ub85c \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0 \uc720\ub9ac \uc9c1\uc870 \uad6c\uc870\uc5d0 \ub530\ub77c \uc720\uc804 \ud2b9\uc131\uc5d0 \uad6d\ubd80\uc801\uc778 \ucc28\uc774\uac00 \uc0dd\uae41\ub2c8\ub2e4. \ub9e4\uc6b0 \ub192\uc740 \ub370\uc774\ud130 \uc804\uc1a1\ub960\uc5d0\uc11c\ub294 \ubc30\uc120 \uac01\ub3c4, \uc2a4\ud504\ub808\ub4dc \uae00\ub77c\uc2a4 \uc720\ud615, \uc218\uc9c0 \ud568\ub7c9 \ubc0f \ucc28\ub3d9 \uc30d \ud615\uc0c1\uc744 \uace0\ub824\ud574 \uc774\ub85c \uc778\ud55c \uc2a4\ud050\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc801\ud569\ud55c PCB \uc18c\uc7ac \uc120\ud0dd \ubc29\ubc95<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \uc804\uae30\uc801 \uc694\uad6c\uc0ac\ud56d \uc815\uc758<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\uc7a5 \ube60\ub978 \uc2e0\ud638 \uc5d0\uc9c0 \uc18d\ub3c4, \uad00\ub828 \ucd5c\uace0 \uc8fc\ud30c\uc218, \ucc44\ub110 \uae38\uc774, \uc784\ud53c\ub358\uc2a4 \ubaa9\ud45c, \ud5c8\uc6a9 \uac00\ub2a5\ud55c \uc0bd\uc785 \uc190\uc2e4, \uace0\uc804\uc555 \uac04\uaca9 \ubc0f \uc808\uc5f0 \uc694\uad6c\uc0ac\ud56d\uc744 \ubb38\uc11c\ud654\ud558\uc138\uc694. RF \ud68c\ub85c\uc758 \uacbd\uc6b0 \uc911\uc2ec \uc8fc\ud30c\uc218, \ub300\uc5ed\ud3ed, \uc704\uc0c1 \uc548\uc815\uc131 \ubc0f \uc804\ub825 \uc218\uc900\ub3c4 \ud3ec\ud568\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2dc\ubbac\ub808\uc774\uc158\uc744 \ud1b5\ud574 \ud45c\uc900 FR-4\uac00 \ucc44\ub110 \uc608\uc0b0\uc744 \ucda9\uc871\ud558\ub294\uc9c0 \ud310\ub2e8\ud558\uc138\uc694. \uce21\uc815 \uac00\ub2a5\ud55c \uc131\ub2a5 \ubaa9\ud45c\uac00 \uc5c6\ub2e4\uba74 \uace0\uac00\uc758 \uc800\uc190\uc2e4 \uc801\uce35\ud310\uc744 \uc120\ud0dd\ud558\uc9c0 \ub9c8\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \uc5f4 \ud658\uacbd \uc815\uc758<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c \uc138 \uac00\uc9c0 \uc9c8\ubb38\uc744 \uad6c\ubd84\ud558\uc138\uc694.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>PCB \uc870\ub9bd \ubc0f \uc7ac\uc791\uc5c5 \uc911\uc5d0\ub294 \uc5b4\ub5a4 \uc628\ub3c4\uac00 \ubc1c\uc0dd\ud558\ub098\uc694?<\/li>\n\n\n\n<li>\uc0ac\uc6a9 \uc911 \uc5f0\uc18d \uc628\ub3c4\uc640 \ucd5c\uace0 \uc628\ub3c4\ub294 \uac01\uac01 \uc5bc\ub9c8\uc778\uac00\uc694?<\/li>\n\n\n\n<li>\ubd80\ud488\uc5d0\uc11c \uc5bc\ub9c8\ub098 \ub9ce\uc740 \uc5f4\uc744 \ubc29\ucd9c\ud574\uc57c \ud558\ub098\uc694?<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\uccab \ubc88\uc9f8\uc640 \ub450 \ubc88\uc9f8 \uc9c8\ubb38\uc740 Tg, Td, CTE, \ubc15\ub9ac \uc800\ud56d \ubc0f \ub178\ud654 \uc694\uad6c\uc0ac\ud56d\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4. \uc138 \ubc88\uc9f8 \uc9c8\ubb38\uc740 \uc5f4\uc804\ub3c4\uc728\uacfc \uc804\uccb4 \uc5f4 \uc124\uacc4\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \uae30\uacc4\uc801 \uc694\uad6c\uc0ac\ud56d \uc815\uc758<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ud310 \ub450\uaed8, \uac15\uc131, \uc9c4\ub3d9, \ucda9\uaca9, \uad7d\ud798 \ud69f\uc218, \uad7d\ud798 \ubc18\uacbd, \uce58\uc218 \uacf5\ucc28, \ucee4\ub125\ud130 \ud558\uc911 \ubc0f \uc778\ud074\ub85c\uc800 \uc81c\uc57d\uc744 \uace0\ub824\ud558\uc138\uc694. \uc804\uae30\uc801 \uc694\uad6c\uc0ac\ud56d\uc774 \ube44\uc2b7\ud558\ub354\ub77c\ub3c4 \uc0b0\uc5c5\uc6a9 \uace0\uc815\uc2dd \ucee8\ud2b8\ub864\ub7ec, \ub3d9\uc801\uc73c\ub85c \uad6c\ubd80\ub7ec\uc9c0\ub294 \uc6e8\uc5b4\ub7ec\ube14 \uae30\uae30 \ubc0f \ucde8\uc131\uc774 \uc788\ub294 \uc138\ub77c\ubbf9 \uc804\ub825 \ubaa8\ub4c8\uc5d0\ub294 \uc11c\ub85c \ub2e4\ub978 \uc18c\uc7ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \uc81c\uc870 \uacf5\uc815 \ud638\ud658\uc131 \ud655\uc778<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PCB \uc81c\uc870\uc5c5\uccb4\uac00 \uc120\ud0dd\ud55c \uc801\uce35\ud310\uc5d0 \ub300\ud574 \ub2e4\uc74c\uc744 \ud3ec\ud568\ud55c \uac80\uc99d\ub41c \uacf5\uc815\uc744 \uac16\ucd94\uc5c8\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc18c\uc7ac \ubcf4\uad00 \ubc0f \ubca0\uc774\ud0b9<\/li>\n\n\n\n<li>\uc801\uce35 \uc0ac\uc774\ud074 \ubc0f \uc218\uc9c0 \ud750\ub984 \uc81c\uc5b4<\/li>\n\n\n\n<li>\uae30\uacc4\uc2dd \ub610\ub294 \ub808\uc774\uc800 \ub4dc\ub9b4\ub9c1<\/li>\n\n\n\n<li>\ud640 \ubcbd\uba74 \ucc98\ub9ac \ubc0f \ub514\uc2a4\ubbf8\uc5b4<\/li>\n\n\n\n<li>\uad6c\ub9ac \ucc98\ub9ac \ubc0f \uc811\ucc29\ub825<\/li>\n\n\n\n<li>\uae4a\uc774 \uc81c\uc5b4 \ub77c\uc6b0\ud305 \ub610\ub294 \uc2a4\ucf54\uc5b4\ub9c1<\/li>\n\n\n\n<li>\uc774\uc885 \uc18c\uc7ac \uc811\ud569<\/li>\n\n\n\n<li>\ucd5c\uc885 \uac80\uc0ac \ubc0f \uc804\uae30 \uc2dc\ud5d8<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub860\uc801\uc73c\ub85c \ub354 \uc6b0\uc218\ud55c \uc18c\uc7ac\ub77c\ub3c4 \uacf5\uc7a5\uc758 \uc548\uc815\uc801\uc778 \uacf5\uc815 \ubc94\uc704\ub97c \ubc97\uc5b4\ub098\uba74 \uc218\uc728 \uc800\ud558, \ub9ac\ub4dc \ud0c0\uc784 \uc99d\uac00 \ub610\ub294 \ud488\uc9c8 \ubd88\uade0\ud615\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \uacf5\uae09 \uac00\ub2a5\uc131\uacfc \ube44\uc6a9\uc758 \uade0\ud615<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc18c\uc7ac \ube44\uc6a9\uc740 \uc801\uce35\ud310 \uac00\uaca9\ub9cc\uc73c\ub85c \uacb0\uc815\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ucd5c\uc18c \uad6c\ub9e4 \uc218\ub7c9, \ud328\ub110 \ud06c\uae30, \uc720\ud1b5\uc5c5\uccb4 \uc7ac\uace0, \ub9ac\ub4dc \ud0c0\uc784, \ud2b9\uc218 \uacf5\uc815, \ud3d0\uae30\uc728, \uc801\uce35 \uad6c\uc131 \ud6a8\uc728 \ubc0f \uc778\uc99d \ube44\uc6a9\uc744 \ud3ec\ud568\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf5\uae09 \uc5f0\uc18d\uc131\uc774 \uc911\uc694\ud558\ub2e4\uba74 \uc218\uc9c0 \ud654\ud559 \uc870\uc131\uc774 \uc720\uc0ac\ud558\uace0 \uc804\uae30\uc801, \uc5f4\uc801, \uae30\uacc4\uc801 \ud2b9\uc131\uc774 \ubb38\uc11c\ud654\ub41c \uc2b9\uc778 \ub300\uccb4 \uc18c\uc7ac\ub97c \uc9c0\uc815\ud558\uc138\uc694. \ub9c8\ucf00\ud305 \uc124\uba85\uc774 \ube44\uc2b7\ud558\ub2e4\uace0 \ud574\uc11c \ub450 \uc18c\uc7ac\uac00 \uadf8\ub300\ub85c \ub300\uccb4 \uac00\ub2a5\ud558\ub2e4\uace0 \uac00\uc815\ud558\uc9c0 \ub9c8\uc138\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc6a9\ub3c4\ubcc4 \uad8c\uc7a5 PCB \uc18c\uc7ac<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\uc6a9\ub3c4<\/th><th>\uc77c\ubc18\uc801\uc778 \ucd08\uae30 \uc120\ud0dd<\/th><th>\ub2e4\uc74c \uacbd\uc6b0\uc5d0\ub294 \uc0c1\uc704 \uc18c\uc7ac\ub85c \ubcc0\uacbd\u2026<\/th><\/tr><tr><td>\uc77c\ubc18 \uc18c\ube44\uc790\uc6a9 \ub610\ub294 \uc0b0\uc5c5\uc6a9 \uc81c\uc5b4<\/td><td>\ud45c\uc900 FR-4<\/td><td>\uc120\ud0dd\ud55c \ub4f1\uae09\uc73c\ub85c \ub9ac\ud50c\ub85c, \uc628\ub3c4, \uc804\uc555 \ub610\ub294 \uc2e0\ub8b0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uc9c0 \ubabb\ud558\ub294 \uacbd\uc6b0<\/td><\/tr><tr><td>\uc790\ub3d9\ucc28 \uc81c\uc5b4 \ubaa8\ub4c8<\/td><td>\uace0Tg, \uc800CTE, CAF \ub0b4\uc131 FR-4<\/td><td>\ub354 \ub192\uc740 \uc8fc\ud30c\uc218, \ub354 \uac00\ud639\ud55c \uc628\ub3c4 \uc0ac\uc774\ud074 \ub610\ub294 \ub354 \ud070 \uc5f4 \ubc00\ub3c4\uac00 \ud544\uc694\ud55c \uacbd\uc6b0<\/td><\/tr><tr><td>\uace0\uc18d \ucef4\ud4e8\ud305 \ubc0f \ub124\ud2b8\uc6cc\ud0b9<\/td><td>\uc800\uc190\uc2e4 FR-4 \ud638\ud658 \uc801\uce35\ud310<\/td><td>\ucc44\ub110 \uc2dc\ubbac\ub808\uc774\uc158 \uacb0\uacfc \ud45c\uc900 FR-4\ub85c\ub294 \uc190\uc2e4 \uc608\uc0b0\uc744 \ucda9\uc871\ud560 \uc218 \uc5c6\ub294 \uacbd\uc6b0<\/td><\/tr><tr><td>RF \uc548\ud14c\ub098 \ub610\ub294 \ub9c8\uc774\ud06c\ub85c\ud30c \ud68c\ub85c<\/td><td>\ud0c4\ud654\uc218\uc18c-\uc138\ub77c\ubbf9 \ub610\ub294 PTFE \uc801\uce35\ud310<\/td><td>\uc8fc\ud30c\uc218, \uc704\uc0c1, \uc804\ub825 \ub610\ub294 \uc190\uc2e4 \ubaa9\ud45c\uc5d0 \ud2b9\uc218 \ub4f1\uae09\uc774 \ud544\uc694\ud55c \uacbd\uc6b0<\/td><\/tr><tr><td>LED \uc870\uba85 \ubc0f \uc18c\ud615 \uc804\ub825 \uc804\uc790\uae30\uae30<\/td><td>\uc54c\ub8e8\ubbf8\ub284 \ucf54\uc5b4 PCB<\/td><td>\uc5f4 \ubc00\ub3c4\ub098 \ubb34\uac8c\uac00 \uc911\uc694\ud55c \uacbd\uc6b0 \uad6c\ub9ac \ucf54\uc5b4, \uc778\ub808\uc774 \ub610\ub294 \uc138\ub77c\ubbf9 \uc194\ub8e8\uc158\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4<\/td><\/tr><tr><td>\uc5f0\uc131 \uc778\ud130\ucee4\ub125\ud2b8<\/td><td>\ud3f4\ub9ac\uc774\ubbf8\ub4dc \ud50c\ub809\uc2a4 \uc801\uce35\ud310<\/td><td>\ub3d9\uc801 \uad7d\ud798\uc774 \ud544\uc694\ud55c \uacbd\uc6b0 \uc811\ucc29\uc81c \uc5c6\ub294 \uc18c\uc7ac\uc640 \uc555\uc5f0 \uc18c\ub454 \uad6c\ub9ac\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4<\/td><\/tr><tr><td>\uace0\uc804\ub825 \ubaa8\ub4c8<\/td><td>\uc138\ub77c\ubbf9 \ub610\ub294 \uc9c1\uc811 \uc811\ud569 \uad6c\ub9ac \uad6c\uc870<\/td><td>\uc5f4 \uc0ac\uc774\ud074\ub9c1\uc774\ub098 \uc804\ub958 \ubc00\ub3c4\uac00 \uc911\uc694\ud55c \uacbd\uc6b0 \ud2b9\uc218 \uc138\ub77c\ubbf9 \uc2dc\uc2a4\ud15c\uc774 \ud544\uc694\ud569\ub2c8\ub2e4<\/td><\/tr><tr><td>\ube44\uc6a9\uc5d0 \ubbfc\uac10\ud55c \ub2e8\uba74 \uc81c\ud488<\/td><td>CEM-1 \ub610\ub294 FR-4<\/td><td>\uae30\uacc4\uc801, \uc5f4\uc801, \ub09c\uc5f0\uc131 \ub610\ub294 \ub2e4\uce35 \uc694\uad6c\uc0ac\ud56d\uc774 \ub192\uc544\uc9d1\ub2c8\ub2e4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\uc77c\ubc18\uc801\uc778 PCB \uc18c\uc7ac \uc120\uc815 \uc2e4\uc218<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u201cFR-4\u201d\ub9cc \uc9c0\uc815\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub807\uac8c \ud558\uba74 \uc5f4\uc801, \uc804\uae30\uc801 \ub610\ub294 \uc2e0\ub8b0\uc131 \ubaa9\ud45c\uac00 \uc911\uc694\ud55c \uacbd\uc6b0 \uc81c\uc870\uc5c5\uccb4\uc5d0 \uc9c0\ub098\uce58\uac8c \ub9ce\uc740 \uc7ac\ub7c9\uc744 \uc8fc\uac8c \ub429\ub2c8\ub2e4. \ud544\uc694\ud55c \uc801\uce35\ud310 \uacc4\uc5f4, IPC \uc2ac\ub798\uc2dc \uc2dc\ud2b8, \uc131\ub2a5 \ud55c\uacc4 \ubc0f \ub300\uccb4 \uaddc\uce59\uc744 \uba85\uc2dc\ud558\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tg\ub9cc\uc73c\ub85c \uc120\ud0dd\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tg\uac00 \ub192\ub2e4\uace0 \ud574\uc11c \uc190\uc2e4\uc774 \ub0ae\uac70\ub098 \uc5f4 \uc804\ub2ec\uc774 \uc6b0\uc218\ud558\uac70\ub098 \ube44\uc544 \uc2e0\ub8b0\uc131\uc774 \ub6f0\uc5b4\ub098\ub2e4\ub294 \ubcf4\uc7a5\uc740 \uc5c6\uc2b5\ub2c8\ub2e4. Td, CTE, T260\/T288, \ud761\uc2b5\ub960 \ubc0f \uc2e4\uc81c \uc870\ub9bd \ud504\ub85c\ud30c\uc77c\uc744 \uac80\ud1a0\ud558\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc778\ud130\ub137\uc758 \uc77c\ubc18\uc801\uc778 Dk \uac12\uc744 \uc0ac\uc6a9\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uac12\uc740 \uc8fc\ud30c\uc218, \uc2dc\ud5d8 \ubc29\ubc95, \uc218\uc9c0 \ud568\ub7c9 \ub610\ub294 \uc720\ub9ac \uad6c\uc870\uac00 \ub2e4\ub978 \uc18c\uc7ac\uc5d0\uc11c \uac00\uc838\uc628 \uac83\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc784\ud53c\ub358\uc2a4 \uacc4\uc0b0\uc5d0\ub294 \uc801\uce35\ud310 \ubc0f \uc2a4\ud0dd\uc5c5\uc5d0 \ub9de\ub294 \ub370\uc774\ud130\ub97c \uc0ac\uc6a9\ud558\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uad6c\ub9ac \ud45c\uba74 \uac70\uce60\uae30\ub97c \ubb34\uc2dc\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac70\uce5c \uad6c\ub9ac\ub97c \uadf8\ub300\ub85c \ub454 \ucc44 \uc720\uc804\uccb4\ub9cc \uc5c5\uadf8\ub808\uc774\ub4dc\ud558\uba74 \uae30\ub300\ud588\ub358 \uc0bd\uc785 \uc190\uc2e4 \uac1c\uc120 \ud6a8\uacfc\uac00 \uc0c1\ub2f9 \ubd80\ubd84 \uc904\uc5b4\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc801\uce35\ud310\uacfc \uad6c\ub9ac\ubc15\uc744 \ud558\ub098\uc758 \uc804\uae30 \uc2dc\uc2a4\ud15c\uc73c\ub85c \ub2e4\ub8e8\uc138\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ubaa8\ub4e0 \uce35\uc5d0 \uacfc\ub3c4\ud55c \uc0ac\uc591\uc744 \uc801\uc6a9\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub9ac\ubbf8\uc5c4 \uc18c\uc7ac\ub294 \uc81c\ud488 \uc131\ub2a5\uc744 \uac1c\uc120\ud558\uc9c0 \uc54a\uc73c\uba74\uc11c \ube44\uc6a9\uc744 \ub192\uc774\uace0 \ub0a9\uae30\ub97c \ub298\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc801\uc808\ud558\uac8c \uc124\uacc4\ud558\uace0 \uac80\uc99d\ud558\uba74 \ud558\uc774\ube0c\ub9ac\ub4dc \uad6c\uc870\ub098 \uc120\ud0dd\uc801 \uc18c\uc7ac \uc801\uc6a9\uc774 \ud6a8\uacfc\uc801\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud1b5\uc81c\ub418\uc9c0 \uc54a\uc740 \uc18c\uc7ac \ub300\uccb4\ub97c \ud5c8\uc6a9\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tg\uc640 Dk\uac00 \ube44\uc2b7\ud55c \ub300\uccb4 \uc18c\uc7ac\ub77c\ub3c4 \uc801\uce35, \ub4dc\ub9b4\ub9c1, \uc2b5\uae30 \ub178\ucd9c \ub610\ub294 \uace0\uc8fc\ud30c \uc791\ub3d9\uc5d0\uc11c \ub2e4\ub974\uac8c \ub3d9\uc791\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc131\ub2a5\uc774 \uc911\uc694\ud55c \uc81c\ud488\uc5d0\uc11c\ub294 \uc18c\uc7ac \ub300\uccb4 \uc804\uc5d0 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc2b9\uc778\uc744 \ubc1b\ub3c4\ub85d \ud558\uc138\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc81c\uc870\uc5c5\uccb4\uc5d0 PCB \uc18c\uc7ac\ub97c \uc9c0\uc815\ud558\ub294 \ubc29\ubc95<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc720\uc6a9\ud55c \uc81c\uc870 \ub3c4\uba74\uc774\ub098 \uc870\ub2ec \ubb38\uc11c\uc5d0\ub294 \ub2e4\uc74c \uc0ac\ud56d\uc744 \ud3ec\ud568\ud574\uc57c \ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud544\uc218\uc778 \uacbd\uc6b0 \uc2b9\uc778\ub41c \uc801\uce35\ud310 \uc81c\uc870\uc5c5\uccb4 \ubc0f \uc81c\ud488 \uacc4\uc5f4<\/li>\n\n\n\n<li>\uc801\uc6a9\ub418\ub294 IPC \uc18c\uc7ac \uaddc\uaca9 \ub610\ub294 \uc2ac\ub798\uc2dc \uc2dc\ud2b8<\/li>\n\n\n\n<li>\uc694\uad6c\ub418\ub294 Tg, Td, Z\ucd95 CTE, T260\/T288 \ubc0f CAF \uc131\ub2a5<\/li>\n\n\n\n<li>\uad00\ub828\uc131\uc774 \uc788\ub294 \uacbd\uc6b0 \uc8fc\ud30c\uc218\uc640 \uc2dc\ud5d8 \ubc29\ubc95\uc744 \ud3ec\ud568\ud55c Dk \ubc0f Df \ubaa9\ud45c\uac12<\/li>\n\n\n\n<li>\uad6c\ub9ac \uc720\ud615, \uc644\uc131 \ud6c4 \uad6c\ub9ac \uc911\ub7c9 \ubc0f \uad6c\ub9ac\ubc15 \ud504\ub85c\ud30c\uc77c \uc694\uad6c\uc0ac\ud56d<\/li>\n\n\n\n<li>\ub09c\uc5f0\uc131, \ubb34\ud560\ub85c\uac90, RoHS, REACH \ub610\ub294 \uae30\ud0c0 \uaddc\uc815 \uc900\uc218 \uc694\uac74<\/li>\n\n\n\n<li>\uc644\uc131\ub41c \uae30\ud310\uc758 \ub450\uaed8 \ubc0f \uacf5\ucc28<\/li>\n\n\n\n<li>\uc784\ud53c\ub358\uc2a4 \uc81c\uc5b4 \ubaa9\ud45c\uac12 \ubc0f \uae30\uc900 \uc2a4\ud0dd\uc5c5<\/li>\n\n\n\n<li>\ub3d9\ub4f1 \uc18c\uc7ac\uc758 \uc0ac\uc6a9\uc774 \uae08\uc9c0\ub418\ub294\uc9c0, \uc0ac\uc804 \uc2b9\uc778\ub418\ub294\uc9c0 \ub610\ub294 \uac80\ud1a0 \ub300\uc0c1\uc778\uc9c0 \uc5ec\ubd80<\/li>\n\n\n\n<li>\ucd94\uc801\uc131, \uc801\ud569\uc131 \uc778\uc99d\uc11c \ub610\ub294 \ub85c\ud2b8 \ub370\uc774\ud130 \uc694\uad6c\uc0ac\ud56d<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\uacb0\ud55c \ubb38\uad6c\ub294 \ub2e4\uc74c\uacfc \uac19\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\uba85\uc2dc\ub41c IPC-4101 \uc694\uad6c\uc0ac\ud56d\uc744 \ucda9\uc871\ud558\ub294 \uc2b9\uc778\ub41c \uace0Tg \ubb34\uc5f0 \uacf5\uc815 \ud638\ud658 FR-4 \uc2dc\uc2a4\ud15c\uc744 \uc0ac\uc6a9\ud558\uc138\uc694. Tg, Td, Z\ucd95 CTE, T288, Dk \ubc0f Df\ub294 \uc81c\uc870 \uc0ac\uc591\uc744 \ucda9\uc871\ud574\uc57c \ud569\ub2c8\ub2e4. \uc11c\uba74 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc2b9\uc778 \uc5c6\uc774\ub294 \uc801\uce35\ud310\uc744 \ub300\uccb4\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\uace0\uc18d \ub610\ub294 RF \uae30\ud310\uc758 \uacbd\uc6b0 \ud3ec\uad04\uc801\uc778 \uae30\uc900\uac12 \ub300\uc2e0 \uc81c\uc870\uc5c5\uccb4\uc640 \ud569\uc758\ud55c \uc815\ud655\ud55c \uc801\uce35\ud310, \uad6c\uc870, \uad6c\ub9ac \ud504\ub85c\ud30c\uc77c \ubc0f \uc784\ud53c\ub358\uc2a4 \ubaa8\ub378\uc744 \uba85\uc2dc\ud558\uc138\uc694.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PCB \uc18c\uc7ac \uad00\ub828 \uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\uac00\uc7a5 \uc77c\ubc18\uc801\uc778 PCB \uc18c\uc7ac\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc720\ub9ac \uc12c\uc720 \uac15\ud654 \uc5d0\ud3ed\uc2dc\uc778 FR-4\ub294 \uc131\ub2a5, \ub0b4\uad6c\uc131, \uacf5\uae09\uc131 \ubc0f \ube44\uc6a9\uc758 \uade0\ud615\uc774 \uc2e4\uc6a9\uc801\uc774\uc5b4\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uacbd\uc131 PCB \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uac00\uc7a5 \uc88b\uc740 PCB \uc18c\uc7ac\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubaa8\ub4e0 \uacbd\uc6b0\uc5d0 \uac00\uc7a5 \uc88b\uc740 \ub2e8\uc77c \uc18c\uc7ac\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \uc77c\ubc18 \uc804\uc790 \uc81c\ud488\uc5d0\ub294 \ud45c\uc900 FR-4\uac00 \uc801\ud569\ud55c \uacbd\uc6b0\uac00 \ub9ce\uace0, \uc7a5\uac70\ub9ac \uace0\uc18d \ucc44\ub110\uc5d0\ub294 \uc800\uc190\uc2e4 \uc801\uce35\ud310, RF\uc5d0\ub294 PTFE \ub610\ub294 \ud0c4\ud654\uc218\uc18c-\uc138\ub77c\ubbf9 \uc18c\uc7ac, \ud50c\ub809\uc2a4\uc5d0\ub294 \ud3f4\ub9ac\uc774\ubbf8\ub4dc, \ubc1c\uc5f4\uc774 \ud070 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\ub294 \uae08\uc18d \ucf54\uc5b4 \ub610\ub294 \uc138\ub77c\ubbf9 \uae30\ud310\uc774 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FR-4\ub294 \uace0\uc8fc\ud30c PCB\uc5d0 \uc801\ud569\ud55c\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9e7\uac70\ub098 \uc190\uc2e4 \ubbfc\uac10\ub3c4\uac00 \ub0ae\uc740 RF \ubc0f \uace0\uc18d \uad6c\uc870\uc5d0\ub294 \uc801\ud569\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc131\ub2a5\uc740 \uc815\ud655\ud55c FR-4 \ub4f1\uae09, \uc8fc\ud30c\uc218, \ud2b8\ub808\uc774\uc2a4 \uae38\uc774, \uc190\uc2e4 \uc608\uc0b0 \ubc0f \uad6c\ub9ac \ud504\ub85c\ud30c\uc77c\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc8fc\ud30c\uc218, \ucc44\ub110 \uae38\uc774 \ub610\ub294 \uc704\uc0c1 \ubbfc\uac10\ub3c4\uac00 \ub192\uc544\uc9c8\uc218\ub85d \ud2b9\uc218 \uc800\uc190\uc2e4 \uc18c\uc7ac\uc758 \uac00\uce58\uac00 \ucee4\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Rogers \uc18c\uc7ac\uac00 FR-4\ubcf4\ub2e4 \ub354 \ub098\uc740\uac00\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cRogers\u201d\ub294 \ud2b9\uc815 \uc18c\uc7ac\uac00 \uc544\ub2c8\ub77c \uacf5\uae09\uc5c5\uccb4\ub97c \uac00\ub9ac\ud0b5\ub2c8\ub2e4. \uc77c\ubd80 Rogers \uc801\uce35\ud310\uc740 \ud45c\uc900 FR-4\ubcf4\ub2e4 \uc190\uc2e4\uc774 \ub0ae\uace0 \uc720\uc804 \ud2b9\uc131\uc774 \ub354 \uade0\uc77c\ud558\uc9c0\ub9cc, \ube44\uc6a9\uc774 \ub354 \ub192\uace0 \uac00\uacf5 \ubc29\uc2dd\uc774 \ub2ec\ub77c\uc57c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc124\uacc4 \uc694\uad6c\uc0ac\ud56d\uc744 \uae30\uc900\uc73c\ub85c \uad6c\uccb4\uc801\uc778 \uc801\uce35\ud310 \uc81c\ud488\ub07c\ub9ac \ube44\uad50\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PCB \uc0c9\uc0c1\uc73c\ub85c \uc18c\uc7ac \uc720\ud615\uc744 \uc54c \uc218 \uc788\ub098\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\uac1c \uadf8\ub807\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub179\uc0c9, \uac80\uc740\uc0c9, \ud30c\ub780\uc0c9, \ube68\uac04\uc0c9 \ubc0f \ud770\uc0c9\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc194\ub354 \ub9c8\uc2a4\ud06c \uc0c9\uc0c1\uc785\ub2c8\ub2e4. \uae30\ud310 \ub0b4\ubd80\uc758 \uc801\uce35\ud310 \ub4f1\uae09\uc744 \ub098\ud0c0\ub0b4\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PCB \uc81c\uc870\uc5c5\uccb4\uac00 \ub3d9\ub4f1\ud55c \uc18c\uc7ac\ub85c \ub300\uccb4\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc124\uacc4 \uad8c\ud55c\uc790\uac00 \ud5c8\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4. \ub2e8\uc21c\ud55c \uae30\ud310\uc774\ub77c\uba74 \ubb38\uc11c\ud654\ub41c \ub3d9\ub4f1 \uc18c\uc7ac\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc784\ud53c\ub358\uc2a4 \uc81c\uc5b4, RF, \uc548\uc804 \uc911\uc694, \uace0\uc2e0\ub8b0\uc131 \ub610\ub294 \uc778\uc99d \uc81c\ud488\uc758 \uacbd\uc6b0 \ub300\uccb4 \uc18c\uc7ac\ub294 \uc0dd\uc0b0 \uc804\uc5d0 \uac80\ud1a0\ud558\uace0 \uc2b9\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PCB \uc18c\uc7ac\ub294 \ube44\uc6a9\uc5d0 \uc5b4\ub5a4 \uc601\ud5a5\uc744 \ubbf8\uce60\uae4c\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud2b9\uc218 \uc218\uc9c0 \uc2dc\uc2a4\ud15c, \uc800\uc190\uc2e4 \uc131\ub2a5, \uc587\uc740 \uc5f0\uc131 \uad6c\uc870, \ub192\uc740 \uc5f4\uc804\ub3c4\uc728, \uc138\ub77c\ubbf9 \uac00\uacf5, \ud754\ud558\uc9c0 \uc54a\uc740 \ub450\uaed8, \uc18c\ub7c9 \uc18c\uc7ac \uad6c\ub9e4, \ud2b9\uc218 \uc81c\uc791 \uacf5\uc815\uc740 \ube44\uc6a9\uc744 \ub192\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc7ac\uace0\uac00 \uc788\ub294 \ud45c\uc900 FR-4\uac00 \uacbd\uc131 \ub2e4\uce35 \uae30\ud310\uc5d0 \uac00\uc7a5 \uacbd\uc81c\uc801\uc778 \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc774\ub984\uc774 \uc544\ub2c8\ub77c \uc131\ub2a5\uc744 \uae30\uc900\uc73c\ub85c PCB \uc18c\uc7ac\ub97c \uc120\ud0dd\ud558\uc138\uc694<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PCB \uc18c\uc7ac \uc120\ud0dd\uc740 \uc81c\ud488\uc758 \uc804\uae30\uc801, \uc5f4\uc801, \uae30\uacc4\uc801, \uc2e0\ub8b0\uc131 \ubc0f \uaddc\uc815 \uc900\uc218 \uc694\uad6c\uc0ac\ud56d\uc744 \ud30c\uc545\ud558\ub294 \uac83\ubd80\ud130 \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uad6c\uccb4\uc801\uc778 \uc801\uce35\ud310 \ub370\uc774\ud130\ub97c \ube44\uad50\ud558\uace0, \uc81c\uc870 \uac00\ub2a5\ud55c \uc2a4\ud0dd\uc5c5\uc744 \uad6c\uc131\ud558\uace0, \uc8fc\uc694 \uad6c\uc870\ub97c \uc2dc\ubbac\ub808\uc774\uc158\ud55c \ub4a4 PCB \uc81c\uc870\uc5c5\uccb4\uc5d0 \uacf5\uae09 \uac00\ub2a5 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 \uc81c\ud488\uc5d0\ub294 \uc0ac\uc591\uc744 \uc798 \uc9c0\uc815\ud55c FR-4 \ub4f1\uae09\uc774 \uc801\ud569\ud569\ub2c8\ub2e4. \uace0\uc18d, RF, \uc5f0\uc131, \uc804\ub825 \ub610\ub294 \uace0\uc628 \uc124\uacc4\ucc98\ub7fc \uae4c\ub2e4\ub85c\uc6b4 \uc694\uad6c\uc0ac\ud56d\uc774 \uc788\ub294 \uacbd\uc6b0\uc5d0\ub294 \ud2b9\uc218 \uae30\ud310\uc744 \uc0ac\uc6a9\ud558\uba74 \uc2e0\ud638 \ubb34\uacb0\uc131 \ubb38\uc81c, \uc5f4\uc801 \uace0\uc7a5 \ubc0f \ube44\uc6a9\uc774 \ub9ce\uc774 \ub4dc\ub294 \uc7ac\uc124\uacc4\ub97c \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd5c\uc801\uc758 \uc18c\uc7ac\ub294 \uce21\uc815 \uac00\ub2a5\ud55c \uc694\uad6c\uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uba74\uc11c \uc81c\uc870 \uc218\uc728\uc774 \uc548\uc815\uc801\uc774\uace0 \ucd1d\ube44\uc6a9\uc774 \uc801\uc815\ud55c \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c PCB\ub97c \uc81c\uc791\uc5d0 \ub118\uae30\uae30 \uc804\uc5d0 \uc2a4\ud0dd\uc5c5, \uc791\ub3d9 \uc870\uac74, \uc784\ud53c\ub358\uc2a4 \ud45c \ubc0f \uc18c\uc7ac \uc694\uad6c\uc0ac\ud56d\uc744 LEADHUI PCB\uc5d0 \ubcf4\ub0b4 \uc81c\uc870 \uc6a9\uc774\uc131\uacfc \uc18c\uc7ac\ub97c \uac80\ud1a0\ubc1b\uc73c\uc138\uc694.<\/p>","protected":false},"excerpt":{"rendered":"<p>PCB material affects far more than the physical strength of a circuit board. It influences impedance, signal loss, heat dissipation, dimensional stability, assembly reliability, manufacturability, lead time, and cost. A material that works well for a basic controller may fail in a 77 GHz radar module, a high-current LED board, or a rigid-flex medical device. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23532,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"PCB Material Guide: Types, Properties, and Selection","_seopress_titles_desc":"Compare PCB material types, properties, uses, and costs. 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