{"id":7918,"date":"2026-07-06T08:34:43","date_gmt":"2026-07-06T08:34:43","guid":{"rendered":"https:\/\/lead-pcb.com\/?p=7918"},"modified":"2026-09-20T03:00:38","modified_gmt":"2026-09-20T03:00:38","slug":"fr-4-material-properties","status":"publish","type":"post","link":"https:\/\/lead-pcb.com\/ja\/blog\/fr-4-material-properties\/","title":{"rendered":"PCB\u30e9\u30df\u30cd\u30fc\u30c8\u9078\u5b9a\u306e\u305f\u3081\u306eFR-4\u6750\u6599\u7279\u6027"},"content":{"rendered":"<p class=\"wp-block-paragraph\">PCB\u306b\u3068\u3063\u3066\u91cd\u8981\u306aFR-4\u6750\u6599\u7279\u6027\u306f\u3001\u57fa\u677f\u304c\u8010\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3082\u306e\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u96fb\u6c17\u4fe1\u53f7\u3001\u5b9f\u88c5\u6642\u306e\u71b1\u3001\u52d5\u4f5c\u6e29\u5ea6\u3001\u96fb\u5727\u30b9\u30c8\u30ec\u30b9\u3001\u6e7f\u6c17\u3001\u6a5f\u68b0\u7684\u8ca0\u8377\u306a\u3069\u3067\u3059\u3002\u307e\u305a\u3001\u8a98\u96fb\u7387\u3068\u640d\u5931\u3001\u71b1\u81a8\u5f35\u3068\u5b89\u5b9a\u6027\u3001\u7d76\u7e01\u6027\u80fd\u3001\u6a5f\u68b0\u7684\u8981\u4ef6\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>FR-4\u306f\u3001\u96e3\u71c3\u6027\u3092\u5099\u3048\u305f\u30ac\u30e9\u30b9\u7e4a\u7dad\u5f37\u5316\u30a8\u30dd\u30ad\u30b7\u6750\u6599\u306e\u5206\u985e\u3067\u3059\u3002\u7279\u5b9a\u306e\u914d\u5408\u3084\u6570\u5024\u7279\u6027\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/strong> \u9298\u67c4\u304c\u7279\u5b9a\u3055\u308c\u305f\u30e9\u30df\u30cd\u30fc\u30c8\u3092\u9078\u3073\u3001\u8a2d\u8a08\u306b\u95a2\u9023\u3059\u308b\u6761\u4ef6\u3067\u305d\u306e\u30c7\u30fc\u30bf\u3092\u8a55\u4fa1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u7279\u6027\u306e\u89e3\u91c8\u65b9\u6cd5\u3001\u5019\u88dc\u3068\u306a\u308b\u69cb\u6210\u306e\u6bd4\u8f03\u65b9\u6cd5\u3001\u305d\u3057\u3066\u6280\u8853\u90e8\u9580\u3068\u8cfc\u8cb7\u90e8\u9580\u306e\u53cc\u65b9\u304c\u6d3b\u7528\u3067\u304d\u308b\u8981\u4ef6\u3092PCB\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u63d0\u793a\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/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>\u8981\u70b9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u91cd\u8981\u306a\u5024\u306b\u3064\u3044\u3066\u3001\u30e9\u30df\u30cd\u30fc\u30c8\u88fd\u54c1\u3001\u69cb\u6210\u3001\u5468\u6ce2\u6570\u3001\u6e29\u5ea6\u3001\u304a\u3088\u3073\u8a66\u9a13\u65b9\u6cd5\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li>Tg\u3060\u3051\u3067\u306a\u304f\u3001\u5206\u89e3\u3001\u81a8\u5f35\u3001\u5c64\u9593\u5265\u96e2\u3001\u304a\u3088\u3073\u9577\u671f\u7684\u306a\u71b1\u30c7\u30fc\u30bf\u3082\u8a55\u4fa1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li>\u30b9\u30bf\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u4f5c\u6210\u306b\u306f\u69cb\u6210\u56fa\u6709\u306e\u96fb\u6c17\u7279\u6027\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u822c\u7684\u306aFR-4\u306eDk\u3067\u306f\u3001\u88fd\u9020\u627f\u8a8d\u306b\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002<\/li>\n\n\n\n<li>\u767a\u6ce8\u524d\u306b\u3001\u53d7\u3051\u5165\u308c\u8981\u4ef6\u3068\u4ee3\u66ff\u54c1\u306e\u627f\u8a8d\u624b\u9806\u3092\u5b9a\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">FR-4\u6750\u6599\u7279\u6027\u306e\u6982\u8981<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5024\u3001\u5358\u4f4d\u3001\u8a66\u9a13\u6761\u4ef6\u3092\u307e\u3068\u3081\u305f\u53c2\u8003\u8868<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306e\u4f8b\u306f\u3001\u516c\u8868\u3055\u308c\u3066\u3044\u308b <strong>Isola 370HR\u306e\u4ee3\u8868\u5024<\/strong>\u3067\u3042\u308a\u3001FR-4\u5168\u822c\u306b\u9069\u7528\u3055\u308c\u308b\u9650\u754c\u5024\u3067\u3082\u3001\u8cfc\u5165\u4ed5\u69d8\u3068\u3057\u3066\u4fdd\u8a3c\u3055\u308c\u305f\u5024\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u8a66\u9a13\u65b9\u6cd5\u306f\u3001\u540c\u88fd\u54c1\u306e <a href=\"https:\/\/www.isola-group.com\/wp-content\/uploads\/data-sheets\/370hr-laminate-prepreg.pdf\">370HR\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-typical-material-properties-ipc-methods.webp\" alt=\"Infographic of FR-4 material properties overview including Tg, Td, Z-axis CTE, and dielectric constant tested under IPC standards\" class=\"wp-image-23593\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-typical-material-properties-ipc-methods.webp 1536w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-typical-material-properties-ipc-methods-300x200.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-typical-material-properties-ipc-methods-1024x683.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-typical-material-properties-ipc-methods-768x512.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-typical-material-properties-ipc-methods-18x12.webp 18w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><figcaption class=\"wp-element-caption\"><em>\u9069\u7528\u3055\u308c\u308bIPC-TM-650\u304a\u3088\u3073ASTM\u8a66\u9a13\u898f\u683c\u306b\u5bfe\u5fdc\u4ed8\u3051\u305f\u3001FR-4\u306e\u4e3b\u8981\u306a\u7269\u7406\u7684\u3001\u96fb\u6c17\u7684\u3001\u71b1\u7684\u7279\u6027\uff08Tg\u3001Td\u3001CTE\u3001Dk\/Df\uff09\u306e\u6982\u8981\u3002<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u7279\u6027<\/th><th>\u4ee3\u8868\u4f8b<\/th><th>\u65b9\u6cd5\u307e\u305f\u306f\u6761\u4ef6<\/th><th>\u9078\u5b9a\u4e0a\u306e\u91cd\u8981\u6027<\/th><\/tr><tr><td>Tg<\/td><td>180\u00b0C<\/td><td>DSC\u3001IPC-TM-650 2.4.25C<\/td><td>\u30ac\u30e9\u30b9\u8ee2\u79fb<\/td><\/tr><tr><td>Td<\/td><td>340\u00b0C<\/td><td>TGA\u3001\u8cea\u91cf\u6e1b\u5c11\u73875%\uff1b2.4.24.6<\/td><td>\u5206\u89e3<\/td><\/tr><tr><td>T260 \/ T288<\/td><td>60 \/ 30\u5206<\/td><td>\u9285\u9664\u53bb\u5f8c\uff1bTMA\u30012.4.24.1<\/td><td>\u5c64\u9593\u5265\u96e2<\/td><\/tr><tr><td>Z\u8ef8CTE<\/td><td>45 \/ 230 ppm\/\u00b0C<\/td><td>Tg\u672a\u6e80 \/ Tg\u8d85\uff1b2.4.24C<\/td><td>\u539a\u3055\u65b9\u5411\u306e\u81a8\u5f35<\/td><\/tr><tr><td>Dk \/ Df<\/td><td>4.17 \/ 0.0161<\/td><td>1 GHz\uff1b2.5.5.9<\/td><td>\u96fb\u6c17\u7279\u6027\u30e2\u30c7\u30ea\u30f3\u30b0<\/td><\/tr><tr><td>\u71b1\u4f1d\u5c0e\u7387<\/td><td>0.4 W\/(m\u00b7K)<\/td><td>ASTM E1952\uff1b\u8ef8\u306f\u7279\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044<\/td><td>\u71b1\u6d41<\/td><\/tr><tr><td>\u7d76\u7e01\u7834\u58ca\u5f37\u5ea6<\/td><td>54 kV\/mm<\/td><td>2.5.6.2A<\/td><td>\u7d76\u7e01\u6027\u30b9\u30af\u30ea\u30fc\u30cb\u30f3\u30b0<\/td><\/tr><tr><td>\u5438\u6e7f\u7387<\/td><td>0.15%<\/td><td>2.6.2.1A<\/td><td>\u5438\u6e7f\u5fdc\u7b54<\/td><\/tr><tr><td>\u66f2\u3052\u5f37\u5ea6<\/td><td>620 \/ 531 MPa<\/td><td>\u9577\u624b\u65b9\u5411 \/ \u5e45\u65b9\u5411\u30012.4.4B<\/td><td>\u6a5f\u68b0\u7684\u5f37\u5ea6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dk\u3068Df\u306f\u7121\u6b21\u5143\u3067\u3059\u3002\u65b9\u5411\u304c\u7279\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5024\u3092\u3001\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3079\u3066\u306e\u8ef8\u306b\u9069\u7528\u3057\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u8868\u7684\u306a\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u5024\u3068\u8cfc\u5165\u8981\u4ef6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u8868\u5024\u306f\u3001\u5831\u544a\u3055\u308c\u305f\u6750\u6599\u6027\u80fd\u3092\u8868\u3057\u307e\u3059\u3002\u8cfc\u5165\u8981\u4ef6\u306f\u3001\u53d7\u3051\u5165\u308c\u308b\u304b\u4e0d\u5408\u683c\u3068\u3059\u308b\u304b\u306e\u57fa\u6e96\u3092\u5b9a\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u8981\u306a\u7279\u6027\u306b\u3064\u3044\u3066\u306f\u3001\u9650\u5ea6\u5024\u3001\u6e2c\u5b9a\u65b9\u6cd5\u3001\u30b3\u30f3\u30c7\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u6761\u4ef6\u3001\u304a\u3088\u3073\u5fc5\u8981\u306a\u8a3c\u62e0\u306b\u3064\u3044\u3066\u5408\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u9069\u5408\u6027\u304c\u6750\u6599\u8a8d\u5b9a\u3001\u8a3c\u660e\u66f8\u3001\u307e\u305f\u306f\u6307\u5b9a\u3055\u308c\u305f\u8a66\u9a13\u306e\u3044\u305a\u308c\u306b\u3088\u3063\u3066\u793a\u3055\u308c\u308b\u306e\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7d0d\u5165\u3055\u308c\u308b\u3059\u3079\u3066\u306ePCB\u306b\u3064\u3044\u3066\u3001\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306b\u8a18\u8f09\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u7279\u6027\u304c\u6e2c\u5b9a\u3055\u308c\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u69d8\u306b\u3001\u4ee3\u8868\u5024\u3092\u56f3\u9762\u306b\u8ee2\u8a18\u3057\u305f\u3060\u3051\u3067\u3001\u6700\u5c0f\u5024\u3068\u3057\u3066\u6271\u308f\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u63d0\u6848\u3059\u308b\u53d7\u5165\u8981\u4ef6\u306b\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304c\u5bfe\u5fdc\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FR-4\u306e\u7279\u6027\u304c\u4e00\u5f8b\u306b\u6c7a\u307e\u3063\u3066\u3044\u306a\u3044\u7406\u7531<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6a39\u8102\u7cfb\u3001\u30ac\u30e9\u30b9\u88dc\u5f37\u6750\u3001\u30b3\u30a2\u3001\u304a\u3088\u3073\u30d7\u30ea\u30d7\u30ec\u30b0<\/h3>\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\/07\/fr-4-material-cross-section-xyz-axes.webp\" alt=\"Microscopic cross-section of FR-4 laminate showing woven glass yarn, cured epoxy resin, copper foil, and X Y Z coordinate axes\" class=\"wp-image-23592\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-material-cross-section-xyz-axes.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-material-cross-section-xyz-axes-300x225.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-material-cross-section-xyz-axes-768x576.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-material-cross-section-xyz-axes-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">FR-4\u306f\u3001\u7e54\u308a\u30ac\u30e9\u30b9\u88dc\u5f37\u6750\u3068\u30a8\u30dd\u30ad\u30b7\u7cfb\u6a39\u8102\u30b7\u30b9\u30c6\u30e0\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u3082\u306e\u3067\u3059\u3002\u6a39\u8102\u914d\u5408\u3001\u30ac\u30e9\u30b9\u306e\u7a2e\u985e\u3001\u6a39\u8102\u3068\u30ac\u30e9\u30b9\u306e\u6bd4\u7387\u304c\u3001\u6700\u7d42\u7684\u306a\u6750\u6599\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u9285\u7b94\u306f\u3001\u9285\u5f35\u7a4d\u5c64\u677f\u306e\u69cb\u6210\u306b\u304a\u3051\u308b\u5225\u500b\u306e\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u306f <strong>\u30b3\u30a2\u6750<\/strong> \u786c\u5316\u6e08\u307f\u306e\u7a4d\u5c64\u677f\u3067\u3001\u901a\u5e38\u306f\u9285\u5f35\u308a\u306e\u72b6\u614b\u3067\u4f9b\u7d66\u3055\u308c\u307e\u3059\u3002 <strong>\u30d7\u30ea\u30d7\u30ec\u30b0<\/strong> \u306f\u3001\u90e8\u5206\u7684\u306b\u786c\u5316\u3057\u305f\u6a39\u8102\u3068\u88dc\u5f37\u6750\u304b\u3089\u306a\u308a\u3001\u7a4d\u5c64\u6642\u306b\u5404\u5c64\u3092\u63a5\u7740\u3057\u307e\u3059\u3002\u672a\u786c\u5316\u306e\u30d7\u30ea\u30d7\u30ec\u30b0\u30b7\u30fc\u30c8\u3092\u5b8c\u6210\u3057\u305f\u5c64\u3068\u3057\u3066\u6271\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u8a2d\u8a08\u306b\u5fc5\u8981\u306a\u5b8c\u6210\u5f8c\u306e\u8a98\u96fb\u4f53\u69cb\u6210\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Isola\u306e\u6750\u6599\u9078\u5b9a\u30ac\u30a4\u30c0\u30f3\u30b9\u3067\u306f\u3001\u6a39\u8102\u3001\u88dc\u5f37\u6750\u3001\u9285\u7b94\u306e\u7279\u6027\u304c\u96fb\u6c17\u7684\u6027\u80fd\u306b\u5f71\u97ff\u3059\u308b\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u7a4d\u5c64\u677f\u306e\u9078\u5b9a\u306f\u30b9\u30bf\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u3042\u308f\u305b\u3066\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/www.isola-group.com\/wp-content\/uploads\/PCB-Material-Selection-for-RF-Microwave-and-Millimeter-wave-Designs.pdf\">Isola\u306e\u6750\u6599\u9078\u5b9a\u30ac\u30a4\u30c0\u30f3\u30b9<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6750\u6599\u306e\u547c\u79f0\u3001IPC\u4ed5\u69d8\u3001\u304a\u3088\u3073UL\u7b49\u7d1a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u8868\u793a\u304c\u793a\u3059\u5185\u5bb9\u306f\u305d\u308c\u305e\u308c\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>FR-4\uff1a<\/strong> \u6750\u6599\u30af\u30e9\u30b9\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30e1\u30fc\u30ab\u30fc\u304a\u3088\u3073\u88fd\u54c1\u306e\u547c\u79f0\uff1a<\/strong> \u500b\u5225\u306e\u7a4d\u5c64\u677f\u30b7\u30b9\u30c6\u30e0\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>IPC-4101\u4ed5\u69d8\u66f8\uff1a<\/strong> \u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u9069\u7528\u3055\u308c\u308b\u57fa\u6750\u8981\u4ef6\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>UL 94\u7b49\u7d1a\uff1a<\/strong> \u71c3\u713c\u6027\u8a66\u9a13\u306b\u304a\u3051\u308b\u6027\u80fd\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">IPC-4101\u306f\u3001\u69cb\u6210\u3084\u7279\u6027\u8981\u4ef6\u3092\u542b\u3080\u3001\u30ea\u30b8\u30c3\u30c9\u57fa\u677f\u304a\u3088\u3073\u591a\u5c64\u30d7\u30ea\u30f3\u30c8\u57fa\u677f\u7528\u306e\u57fa\u6750\u3092\u5bfe\u8c61\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u9069\u7528\u3059\u308b\u6539\u8a02\u7248\u304a\u3088\u3073\u4ed5\u69d8\u66f8\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.ipc.org\/TOC\/IPC-4101D.pdf\">IPC-4101\u306e\u9069\u7528\u7bc4\u56f2\u3068\u5185\u5bb9<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9078\u5b9a\u3057\u305f\u6750\u6599\u3068\u69cb\u6210\u306b\u5fc5\u8981\u306a\u71c3\u713c\u6027\u7b49\u7d1a\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u71c3\u713c\u6027\u5206\u985e\u306f\u3001\u9023\u7d9a\u4f7f\u7528\u6e29\u5ea6\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002UL\u3067\u306f\u3001\u71c3\u713c\u6027\u3068\u9577\u671f\u71b1\u8a55\u4fa1\u306f\u5225\u3005\u306b\u6271\u308f\u308c\u307e\u3059\u3002 <a href=\"https:\/\/www.ul.com\/services\/plastics-testing-and-certification\">UL\u306e\u6750\u6599\u8a66\u9a13<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u96fb\u6c17\u7684\u7279\u6027\uff1aDk\u3001Df\u3001\u304a\u3088\u3073\u7d76\u7e01\u6027\u80fd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5468\u6ce2\u6570\u3068\u30b9\u30bf\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u5fdc\u3058\u305fDk\u304a\u3088\u3073Df\u30c7\u30fc\u30bf\u306e\u9078\u3073\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8a98\u96fb\u7387<\/strong>\uff08\u6bd4\u8a98\u96fb\u7387\uff09\u306f\u3001\u9759\u96fb\u5bb9\u91cf\u3001\u4f1d\u642c\u9045\u5ef6\u3001\u304a\u3088\u3073\u4f1d\u9001\u7dda\u8def\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002 <strong>\u8a98\u96fb\u6b63\u63a5<\/strong>\u640d\u5931\u6b63\u63a5\u3068\u3082\u547c\u3070\u308c\u3001\u8a98\u96fb\u640d\u5931\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6750\u6599\u3092\u6bd4\u8f03\u3059\u308b\u969b\u306f\u3001\u5468\u6ce2\u6570\u3001\u8a66\u9a13\u65b9\u6cd5\u3001\u304a\u3088\u3073\u69cb\u6210\u3092\u305d\u308d\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u8a2d\u8a08\u306b\u3042\u305f\u3063\u3066\u306f\u3001\u5bfe\u8c61\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u306b\u304a\u3044\u3066\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304c\u63a8\u5968\u3059\u308bDk\/Df\u30c7\u30fc\u30bf\u307e\u305f\u306f\u30e2\u30c7\u30eb\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f1d\u9001\u7dda\u8def\u306e <strong>\u5b9f\u52b9\u6bd4\u8a98\u96fb\u7387<\/strong> \u306f\u3001\u96fb\u754c\u304c\u3069\u3053\u3092\u901a\u308b\u304b\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u8868\u9762\u30de\u30a4\u30af\u30ed\u30b9\u30c8\u30ea\u30c3\u30d7\u3067\u306f\u3001\u96fb\u754c\u306f\u57fa\u677f\u5185\u3068\u305d\u306e\u4e0a\u65b9\u306e\u9818\u57df\u306e\u4e21\u65b9\u306b\u5e83\u304c\u308a\u307e\u3059\u3002\u305d\u306e\u30e2\u30c7\u30eb\u3067\u306f\u3001\u7a4d\u5c64\u677f\u5168\u4f53\u306eDk\u3060\u3051\u3067\u306a\u304f\u3001\u5f62\u72b6\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Df\u3060\u3051\u3067\u306f\u3001\u30c1\u30e3\u30cd\u30eb\u5168\u4f53\u306e\u640d\u5931\u3092\u4e88\u6e2c\u3067\u304d\u307e\u305b\u3093\u3002\u5c0e\u4f53\u640d\u5931\u3001\u9285\u7b94\u306e\u7c97\u3055\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u4e0d\u9023\u7d9a\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3042\u3089\u3086\u308bFR-4\u69cb\u6210\u304c\u4e0d\u9069\u5207\u306b\u306a\u308b\u666e\u904d\u7684\u306a\u5468\u6ce2\u6570\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30c1\u30e3\u30cd\u30eb\u9577\u3068\u640d\u5931\u4e88\u7b97\u3092\u8a55\u4fa1\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.isola-group.com\/wp-content\/uploads\/PCB-Material-Selection-for-RF-Microwave-and-Millimeter-wave-Designs.pdf\">Isola\u306e\u4f1d\u9001\u7dda\u8def\u304a\u3088\u3073\u640d\u5931\u89e3\u6790<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u8981\u306a\u30cd\u30c3\u30c8\u3092\u914d\u7dda\u3059\u308b\u524d\u306b\u3001\u69cb\u6210\u3001\u5b8c\u6210\u5f8c\u306e\u8a98\u96fb\u4f53\u539a\u3001\u9285\u7b94\u3001\u96fb\u6c17\u30e2\u30c7\u30eb\u3001\u304a\u3088\u3073\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u76ee\u6a19\u306b\u3064\u3044\u3066\u5408\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b9\u30bf\u30c3\u30af\u30a2\u30c3\u30d7\u5168\u4f53\u306e\u8a2d\u8a08\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u3001 <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/fr-4-material-properties\/\" data-type=\"post\" data-id=\"7918\">\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5236\u5fa1PCB\u8a2d\u8a08\u30ac\u30a4\u30c9<\/a> \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7d76\u7e01\u7834\u58ca\u5f37\u5ea6\u3001\u62b5\u6297\u7387\u3001\u304a\u3088\u3073CTI<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u7279\u6027\u306f\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u7d76\u7e01\u6027\u80fd\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7d76\u7e01\u7834\u58ca\u5f37\u5ea6\uff1a<\/strong> \u898f\u5b9a\u306e\u8a66\u9a13\u6761\u4ef6\u4e0b\u306b\u304a\u3051\u308b\u5358\u4f4d\u539a\u3055\u5f53\u305f\u308a\u306e\u7d76\u7e01\u7834\u58ca\u96fb\u5727\u3002<\/li>\n\n\n\n<li><strong>\u4f53\u7a4d\u62b5\u6297\u7387\u304a\u3088\u3073\u8868\u9762\u62b5\u6297\u7387\uff1a<\/strong> \u6750\u6599\u5185\u90e8\u307e\u305f\u306f\u8868\u9762\u306b\u6cbf\u3063\u305f\u96fb\u6d41\u306e\u6d41\u308c\u306b\u5bfe\u3059\u308b\u62b5\u6297\u3002<\/li>\n\n\n\n<li><strong>\u6bd4\u8f03\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u6307\u6570\uff08CTI\uff09\uff1a<\/strong> \u8a66\u9a13\u6761\u4ef6\u4e0b\u3067\u3001\u7d76\u7e01\u8868\u9762\u306b\u5c0e\u96fb\u6027\u306e\u30c8\u30e9\u30c3\u30af\u304c\u5f62\u6210\u3055\u308c\u308b\u3053\u3068\u3078\u306e\u76f8\u5bfe\u7684\u306a\u62b5\u6297\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">IPC\u3067\u306f\u3001\u6b21\u306e\u9805\u76ee\u306b\u3064\u3044\u3066\u500b\u5225\u306e\u8a66\u9a13\u65b9\u6cd5\u304c\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.5.6.2a.pdf\">\u7d76\u7e01\u8010\u529b<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.5.17.1a.pdf\">\u4f53\u7a4d\u62b5\u6297\u7387\uff0f\u8868\u9762\u62b5\u6297\u7387<\/a>\u3002UL\u3067\u306f\u3001CTI\u3092\u72ec\u7acb\u3057\u305f\u8a55\u4fa1\u9805\u76ee\u3068\u3057\u3066\u3001 <a href=\"https:\/\/www.ul.com\/services\/comparative-tracking-index-cti-iec-60112\">\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u62b5\u6297<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306b\u8a18\u8f09\u3055\u308c\u305f\u7d76\u7e01\u7834\u58ca\u5024\u306b\u57fa\u677f\u539a\u3092\u639b\u3051\u3001\u305d\u306e\u7d50\u679c\u3092\u8a8d\u5b9a\u6e08\u307f\u306e\u4f7f\u7528\u96fb\u5727\u3068\u307f\u306a\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u9069\u7528\u3055\u308c\u308b\u9593\u9694\u3001\u74b0\u5883\u6761\u4ef6\u3001\u691c\u8a3c\u8981\u4ef6\u3092\u542b\u3081\u3001\u88fd\u54c1\u30ec\u30d9\u30eb\u3067\u7d76\u7e01\u8981\u4ef6\u3092\u78ba\u7acb\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u71b1\u7279\u6027\uff1aTg\u3001Td\u3001\u81a8\u5f35\u3001\u71b1\u6d41<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Tg\u3001\u5206\u89e3\u3001\u5c64\u9593\u5265\u96e2\u6642\u9593\u3001\u9577\u671f\u6e29\u5ea6\u5b9a\u683c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tg\u306f\u30ac\u30e9\u30b9\u8ee2\u79fb\u9818\u57df\u3092\u793a\u3057<\/strong>\u3001\u3053\u306e\u9818\u57df\u3067\u306f\u6a39\u8102\u306e\u525b\u6027\u3068\u81a8\u5f35\u6319\u52d5\u304c\u5909\u5316\u3057\u307e\u3059\u3002Tg\u306f\u878d\u70b9\u3067\u306f\u306a\u304f\u3001\u5b8c\u5168\u306a\u4f7f\u7528\u6e29\u5ea6\u5b9a\u683c\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002DSC\u306f\u71b1\u5bb9\u91cf\u306e\u6319\u52d5\u304b\u3089\u8ee2\u79fb\u3092\u6e2c\u5b9a\u3057\u3001TMA\u306f\u5bf8\u6cd5\u5909\u5316\u3092\u8abf\u3079\u307e\u3059\u3002\u7d50\u679c\u3092\u6bd4\u8f03\u3059\u308b\u969b\u306f\u3001\u8a66\u9a13\u65b9\u6cd5\u3092\u63c3\u3048\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.4.25d.pdf\">IPC\u306eDSC\u8a66\u9a13\u65b9\u6cd5<\/a>, <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.4.24c.pdf\">IPC\u306eTMA\u8a66\u9a13\u65b9\u6cd5<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Td\u306f\u71b1\u5206\u89e3\u306b\u95a2\u3059\u308b\u6307\u6a19\u3067\u3059\u3002<\/strong> \u8cea\u91cf\u6e1b\u5c11\u306e\u57fa\u6e96\u304c\u91cd\u8981\u3067\u3059\u3002IPC\u306eTGA\u8a66\u9a13\u65b9\u6cd5\u3067\u306f\u3001\u8cea\u91cf\u6e1b\u5c11\u73872%\u304a\u3088\u30735%\u306b\u304a\u3051\u308b\u6e29\u5ea6\u304c\u5831\u544a\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u306e\u6750\u6599\u306e2%\u5024\u3092\u3001\u3082\u3046\u4e00\u65b9\u306e\u6750\u6599\u306e5%\u5024\u3068\u6bd4\u8f03\u3059\u308b\u3068\u3001\u8aa4\u89e3\u3092\u62db\u304f\u304a\u305d\u308c\u304c\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2-4_2-4-24-6.pdf\">IPC\u306e\u5206\u89e3\u6e29\u5ea6\u8a66\u9a13\u65b9\u6cd5<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T260\u304a\u3088\u3073T288\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u8a66\u9a13\u6e29\u5ea6\u3067\u5c64\u9593\u5265\u96e2\u304c\u751f\u3058\u308b\u307e\u3067\u306e\u6642\u9593\u3092\u793a\u3057\u307e\u3059\u3002<\/strong> \u8a66\u9a13\u7247\u306e\u6e96\u5099\u3068\u9285\u306e\u72b6\u614b\u304c\u7d50\u679c\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6e2c\u5b9a\u5024\u306f\u3001\u5b8c\u6210\u3057\u305f\u5b9f\u88c5\u54c1\u304c\u4f55\u56de\u306e\u30ea\u30d5\u30ed\u30fc\u306b\u8010\u3048\u3089\u308c\u308b\u304b\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.4.24.1.pdf\">IPC\u306e\u5c64\u9593\u5265\u96e2\u6642\u9593\u8a66\u9a13\u65b9\u6cd5<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u76f8\u5bfe\u71b1\u6307\u6570\uff08RTI\uff09\u306f\u3001\u9577\u671f\u7684\u306a\u71b1\u52a3\u5316\u306b\u95a2\u3059\u308b\u6307\u6a19\u3067\u3059\u3002<\/strong> \u8a8d\u5b9a\u6761\u4ef6\u304a\u3088\u3073\u88fd\u54c1\u5168\u4f53\u306e\u8a55\u4fa1\u3092\u8e0f\u307e\u3048\u3066\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002UL\u306e\u71b1\u52a3\u5316\u8a66\u9a13\u306f\u3001\u77ed\u6642\u9593\u306e\u71b1\u7279\u6027\u8a55\u4fa1\u3068\u306f\u5225\u306e\u3082\u306e\u3067\u3059\u3002 <a href=\"https:\/\/www.ul.com\/services\/plastics-testing-and-certification\">UL\u306e\u71b1\u8a55\u4fa1<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u52d9\u4e0a\u306f\u3001\u60f3\u5b9a\u3055\u308c\u308b\u4f7f\u7528\u6e29\u5ea6\u3001\u306f\u3093\u3060\u4ed8\u3051\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3001\u30ea\u30ef\u30fc\u30af\u6642\u306e\u71b1\u66dd\u9732\u3001\u4fe1\u983c\u6027\u8981\u4ef6\u3092\u4f75\u305b\u3066\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Tg\u306e\u5024\u304c\u9ad8\u3044\u3060\u3051\u3067\u306f\u3001\u3053\u306e\u8a55\u4fa1\u3092\u5b8c\u4e86\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tg\u4ee5\u4e0b\u304a\u3088\u3073Tg\u4ee5\u4e0a\u306b\u304a\u3051\u308bX\/Y\u65b9\u5411\u3068Z\u8ef8\u65b9\u5411\u306eCTE<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u71b1\u81a8\u5f35\u4fc2\u6570\u306f\u3001\u6e29\u5ea6\u306b\u3088\u308b\u5bf8\u6cd5\u5909\u5316\u3092\u8868\u3057\u307e\u3059\u3002X\u65b9\u5411\u3068Y\u65b9\u5411\u306f\u57fa\u677f\u9762\u5185\u3001Z\u65b9\u5411\u306f\u57fa\u677f\u306e\u539a\u3055\u65b9\u5411\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5404CTE\u5024\u306b\u3064\u3044\u3066\u3001\u6e2c\u5b9a\u65b9\u5411\u3068\u6e29\u5ea6\u7bc4\u56f2\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002Tg\u4ee5\u4e0b\u3067\u6e2c\u5b9a\u3057\u305f\u4fc2\u6570\u306f\u3001\u8ee2\u79fb\u6e29\u5ea6\u3092\u307e\u305f\u3050\u6e29\u5ea6\u5909\u5316\u5168\u4f53\u3092\u8868\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001ppm\/\u00b0C\u3067\u8868\u3055\u308c\u308b\u4fc2\u6570\u3068\u3001\u6307\u5b9a\u6e29\u5ea6\u7bc4\u56f2\u306b\u304a\u3051\u308b\u767e\u5206\u7387\u3067\u8868\u3055\u308c\u308b\u5168\u81a8\u5f35\u91cf\u3092\u533a\u5225\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.4.24c.pdf\">IPC\u306e\u71b1\u81a8\u5f35\u8a66\u9a13\u65b9\u6cd5<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d3\u30a2\u306e\u4fe1\u983c\u6027\u3092\u8a55\u4fa1\u3059\u308b\u969b\u306f\u3001\u57fa\u677f\u539a\u3001\u7a74\u5f62\u72b6\u3001\u3081\u3063\u304d\u3001\u60f3\u5b9a\u3055\u308c\u308b\u71b1\u30b5\u30a4\u30af\u30eb\u306b\u52a0\u3048\u3066\u3001\u7a4d\u5c64\u677f\u306e\u539a\u3055\u65b9\u5411\u306e\u81a8\u5f35\u3082\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002CTE\u306f\u8a55\u4fa1\u306b\u7528\u3044\u308b\u5165\u529b\u306e\u4e00\u3064\u3067\u3042\u308a\u3001\u305d\u308c\u5358\u72ec\u3067\u4fe1\u983c\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u71b1\u4f1d\u5c0e\u7387\u3068\u57fa\u677f\u5168\u4f53\u306e\u653e\u71b1\u7d4c\u8def<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u71b1\u4f1d\u5c0e\u7387\u306f\u71b1\u306e\u4f1d\u308f\u308a\u3084\u3059\u3055\u3092\u8868\u3057\u307e\u3059\u3002\u6a39\u8102\u304c\u71b1\u66dd\u9732\u306b\u8010\u3048\u308b\u304b\u3069\u3046\u304b\u3068\u306f\u5225\u306e\u554f\u3044\u306b\u7b54\u3048\u308b\u6307\u6a19\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90e8\u54c1\u304c\u904e\u71b1\u3059\u308b\u5834\u5408\u306f\u3001\u57fa\u677f\u3078\u306e\u53d6\u308a\u4ed8\u3051\u3001\u9285\u7b94\u306b\u3088\u308b\u71b1\u62e1\u6563\u3001\u30b5\u30fc\u30de\u30eb\u30d3\u30a2\u3001\u754c\u9762\u3001\u6c17\u6d41\u3001\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u306e\u6709\u7121\u306a\u3069\u3001\u51b7\u5374\u7d4c\u8def\u5168\u4f53\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002Tg\u3092\u9ad8\u304f\u3059\u308b\u3060\u3051\u3067\u306f\u3001\u653e\u71b1\u6027\u306e\u5411\u4e0a\u306f\u78ba\u8a8d\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u65b9\u5411\u306b\u9069\u3057\u305f\u6750\u6599\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3001\u9285\u306f\u5225\u9014\u30e2\u30c7\u30eb\u5316\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d1\u30bf\u30fc\u30f3\u9285\u7b94\u3084\u30d3\u30a2\u3092\u542b\u3080\u5b8c\u6210\u3057\u305f\u591a\u5c64\u57fa\u677f\u306b\u3001\u7a4d\u5c64\u677f\u306e\u71b1\u4f1d\u5c0e\u7387\u3092\u305d\u306e\u307e\u307e\u4e00\u5f8b\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6a5f\u68b0\u7279\u6027\u3068\u5438\u6e7f\u6027\uff1a\u307b\u304b\u306b\u78ba\u8a8d\u3059\u3079\u304d\u9805\u76ee<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6a5f\u68b0\u8377\u91cd\u304c\u304b\u304b\u308b\u57fa\u677f\u3067\u306f\u3001 <strong>\u5f37\u5ea6<\/strong> \u3068 <strong>\u525b\u6027<\/strong>\u3092\u533a\u5225\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5f37\u5ea6\u306f\u8377\u91cd\u306b\u3088\u308b\u7834\u58ca\u3078\u306e\u62b5\u6297\u3092\u6307\u3057\u3001\u5f3e\u6027\u7387\u306f\u5909\u5f62\u3078\u306e\u62b5\u6297\u3092\u8868\u3057\u307e\u3059\u3002\u57fa\u677f\u539a\u3001\u652f\u6301\u4f4d\u7f6e\u3001\u53d6\u308a\u4ed8\u3051\u8377\u91cd\u3082\u6a5f\u68b0\u7684\u8a55\u4fa1\u306b\u542b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f37\u5316\u7a4d\u5c64\u677f\u3092\u6bd4\u8f03\u3059\u308b\u969b\u306f\u3001\u8a66\u9a13\u65b9\u5411\u3092\u63c3\u3048\u3066\u304f\u3060\u3055\u3044\u3002IPC\u306e\u66f2\u3052\u5f37\u5ea6\u8a66\u9a13\u65b9\u6cd5\u3067\u306f\u3001\u7e26\u65b9\u5411\u304a\u3088\u3073\u6a2a\u65b9\u5411\u306e\u8a66\u9a13\u7247\u3092\u660e\u793a\u7684\u306b\u8981\u6c42\u3057\u3066\u3044\u307e\u3059\u3002\u52a0\u5de5\u6642\u3084\u30ea\u30ef\u30fc\u30af\u6642\u306e\u5fdc\u529b\u304c\u554f\u984c\u3068\u306a\u308b\u5834\u5408\u306f\u3001\u9285\u7b94\u306e\u63a5\u7740\u5f37\u5ea6\u3092\u5225\u9014\u8a55\u4fa1\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.4.4b.pdf\">IPC\u306e\u66f2\u3052\u5f37\u5ea6\u8a66\u9a13\u65b9\u6cd5<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5438\u6c34\u7387\u3082\u8a66\u9a13\u65b9\u6cd5\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u4f8b\u793a\u8868\u3067\u53c2\u7167\u3055\u308c\u3066\u3044\u308b\u5438\u6c34\u8a66\u9a13\u65b9\u6cd5\u3067\u306f\u3001\u8abf\u6e7f\u5f8c\u3001\u898f\u5b9a\u3055\u308c\u305f24\u6642\u9593\u306e\u6d78\u6f2c\u3092\u884c\u3044\u3001\u8cea\u91cf\u5897\u52a0\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u7d50\u679c\u306f\u3001\u3042\u3089\u3086\u308b\u6e7f\u5ea6\u74b0\u5883\u3067\u306e\u6319\u52d5\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u5b8c\u6210\u3057\u305f\u57fa\u677f\u306e\u96fb\u6c17\u7684\u4fe1\u983c\u6027\u3092\u8a3c\u660e\u3059\u308b\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002 <a href=\"https:\/\/www.electronics.org\/sites\/default\/files\/test_methods_docs\/2.6.2.1a.pdf\">IPC\u306e\u5438\u6c34\u8a66\u9a13\u65b9\u6cd5<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u6e7f\u5ea6\u304b\u3064\u96fb\u5727\u304c\u5370\u52a0\u3055\u308c\u308b\u7528\u9014\u3067\u306f\u3001\u5438\u6c34\u30c7\u30fc\u30bf\u306b\u52a0\u3048\u3001\u7d76\u7e01\u4fe1\u983c\u6027\u306b\u95a2\u3059\u308b\u8a72\u5f53\u30c7\u30fc\u30bf\u3092\u6c42\u3081\u3066\u304f\u3060\u3055\u3044\u3002\u4fdd\u7ba1\u304a\u3088\u3073\u7d44\u307f\u7acb\u3066\u524d\u306e\u53d6\u308a\u6271\u3044\u8981\u4ef6\u3092\u3001\u57fa\u677f\u88fd\u9020\u696d\u8005\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u3092\u7528\u3044\u305f\u89e3\u8aac\uff1aFR-4\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u8aad\u3080<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u88fd\u54c1\u3001\u7248\u3001\u69cb\u6210\u3001\u8a66\u9a13\u6761\u4ef6\u3092\u7279\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4eee\u60f3\u7684\u306a\u30b7\u30ca\u30ea\u30aa\uff1a<\/strong> \u3042\u308b\u30c1\u30fc\u30e0\u304c\u3001\u5236\u5fa1\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u4fe1\u53f7\u3092\u7528\u3044\u308b6\u5c64\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3092\u958b\u767a\u3057\u3066\u3044\u307e\u3059\u3002\u63d0\u6848\u3055\u308c\u3066\u3044\u308b2\u7a2e\u985e\u306e\u30b3\u30a2\u69cb\u6210\u306f\u3001\u7a4d\u5c64\u677f\u306e\u88fd\u54c1\u540d\u3068\u516c\u79f0\u539a\u3055\u304c\u540c\u3058\u3067\u3059\u3002\u8cfc\u8cb7\u90e8\u9580\u304b\u3089\u3001\u4e21\u8005\u3092\u4e92\u63db\u54c1\u3068\u3057\u3066\u6271\u3048\u308b\u304b\u554f\u3044\u5408\u308f\u305b\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6280\u8853\u8005\u306f\u6587\u66f8\u306e\u6539\u8a02\u7248\u3092\u8a18\u9332\u3057\u307e\u3059\u3002370HR\u88fd\u54c1\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306f\u6539\u8a02E\u3001\u5225\u518a\u306e\u69cb\u6210\u8868\u306f\u6539\u8a02C\u3067\u3001\u65e5\u4ed8\u306f2020\u5e743\u670816\u65e5\u3067\u3059\u3002\u5404\u6570\u5024\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u51fa\u5178\u306b\u7d50\u3073\u4ed8\u3051\u305f\u307e\u307e\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5171\u901a\u306e\u6bd4\u8f03\u57fa\u6e96\u3067\u3042\u308b1 GHz\u306b\u304a\u3044\u3066\u3001\u69cb\u6210\u8868\u306b\u306f\u6b21\u306e\u3088\u3046\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>370HR\u30b3\u30a2\u69cb\u6210<\/th><th class=\"has-text-align-right\" data-align=\"right\">\u6a39\u8102\u542b\u6709\u91cf<\/th><th class=\"has-text-align-right\" data-align=\"right\">\u516c\u79f0\u539a\u3055<\/th><th class=\"has-text-align-right\" data-align=\"right\">Dk<\/th><th class=\"has-text-align-right\" data-align=\"right\">Df<\/th><\/tr><tr><td>2116\u30ac\u30e9\u30b9\u30af\u30ed\u30b9 1\u679a<\/td><td class=\"has-text-align-right\" data-align=\"right\">47%<\/td><td class=\"has-text-align-right\" data-align=\"right\">0.102 mm<\/td><td class=\"has-text-align-right\" data-align=\"right\">4.26<\/td><td class=\"has-text-align-right\" data-align=\"right\">0.018<\/td><\/tr><tr><td>106\u30ac\u30e9\u30b9\u30af\u30ed\u30b9 1\u679a + 1080\u30ac\u30e9\u30b9\u30af\u30ed\u30b9 1\u679a<\/td><td class=\"has-text-align-right\" data-align=\"right\">60%<\/td><td class=\"has-text-align-right\" data-align=\"right\">0.102 mm<\/td><td class=\"has-text-align-right\" data-align=\"right\">4.00<\/td><td class=\"has-text-align-right\" data-align=\"right\">0.021<\/td><\/tr><\/tbody><\/table><\/figure>\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\/07\/fr-4-glass-style-resin-content-dk-comparison.webp\" alt=\"Comparison diagram of two FR-4 core constructions showing differences in glass style, resin content, and dielectric constant (Dk)\" class=\"wp-image-23594\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-glass-style-resin-content-dk-comparison.webp 1000w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-glass-style-resin-content-dk-comparison-300x169.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-glass-style-resin-content-dk-comparison-768x432.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/fr-4-glass-style-resin-content-dk-comparison-18x10.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306f\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u53c2\u8003\u30c7\u30fc\u30bf\u3067\u3042\u308a\u3001\u53d7\u3051\u5165\u308c\u9650\u5ea6\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u72ec\u7acb\u3057\u305f\u8868\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u9805\u76ee\u306b\u5bfe\u3059\u308b\u8a66\u9a13\u65b9\u6cd5\u306f\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002 <a href=\"https:\/\/www.isola-group.com\/wp-content\/uploads\/data-sheets\/370HR__Dk_Df_Tables.pdf\">Isola 370HR\u69cb\u6210\u8868<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6bd4\u8f03\u53ef\u80fd\u306a\u5024\u3068\u8a2d\u8a08\u306b\u4f7f\u7528\u3067\u304d\u308b\u5024\u3092\u5224\u65ad\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u6bd4\u8f03\u304b\u3089\u3001\u88fd\u54c1\u540d\u3068\u516c\u79f0\u539a\u3055\u304c\u4e00\u81f4\u3057\u3066\u3044\u3066\u3082\u3001\u96fb\u6c17\u7684\u7279\u6027\u304c\u540c\u4e00\u3068\u306f\u9650\u3089\u306a\u3044\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6280\u8853\u9762\u3067\u306e\u5bfe\u5fdc\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u5b9f\u969b\u306b\u63d0\u6848\u3055\u308c\u3066\u3044\u308b\u69cb\u6210\u3092\u78ba\u8a8d\u3057\u3001\u8a72\u5f53\u3059\u308b\u6700\u65b0\u30c7\u30fc\u30bf\u3092\u5165\u624b\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u88fd\u9020\u696d\u8005\u3068\u30e2\u30c7\u30eb\u304a\u3088\u3073\u5b8c\u6210\u6642\u306e\u5bf8\u6cd5\u306b\u3064\u3044\u3066\u5408\u610f\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u5909\u66f4\u3092\u627f\u8a8d\u3059\u308b\u524d\u306b\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u30c1\u30e3\u30cd\u30eb\u6027\u80fd\u3092\u518d\u8a08\u7b97\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u627f\u8a8d\u3057\u305f\u69cb\u6210\u3068\u4ee3\u66ff\u54c1\u306e\u4f7f\u7528\u6761\u4ef6\u3092\u8a18\u9332\u3059\u308b\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u88fd\u54c1\u30ec\u30d9\u30eb\u306e\u8868\u3082\u3053\u306e\u6bd4\u8f03\u3082\u3001\u305d\u308c\u3060\u3051\u3067\u306f\u5b8c\u6210\u54c1\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u4e88\u6e2c\u3059\u308b\u306e\u306b\u5341\u5206\u306a\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u3053\u306e\u4f8b\u306f\u3001\u3069\u3061\u3089\u304b\u4e00\u65b9\u306e\u69cb\u6210\u304c\u3042\u3089\u3086\u308b\u5834\u5408\u306b\u512a\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u9078\u629e\u306f\u56de\u8def\u3068\u7a4d\u5c64\u69cb\u6210\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7a4d\u5c64\u677f\u306e\u9078\u5b9a\u3068\u4ee3\u66ff\u54c1\u306e\u8a55\u4fa1\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u8a08\u4e0a\u306e\u5236\u7d04\u3068\u306a\u308b\u8981\u4ef6\u304b\u3089\u59cb\u3081\u307e\u3059\u3002\u6b21\u306e\u8868\u306f\u5b9f\u52d9\u7684\u306a\u8a55\u4fa1\u306e\u67a0\u7d44\u307f\u3067\u3042\u308a\u3001\u3042\u3089\u3086\u308b\u5834\u5408\u306b\u5f53\u3066\u306f\u307e\u308b\u6750\u6599\u306e\u63a8\u5968\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u4e3b\u306a\u61f8\u5ff5\u4e8b\u9805<\/th><th>\u6c42\u3081\u308b\u8a3c\u62e0<\/th><th>\u5224\u65ad\u4e8b\u9805<\/th><\/tr><tr><td>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u307e\u305f\u306f\u4f1d\u642c\u9045\u5ef6<\/td><td>\u69cb\u6210\u306b\u56fa\u6709\u306eDk\u30e2\u30c7\u30eb\u3068\u5b8c\u6210\u6642\u306e\u7a4d\u5c64\u69cb\u6210<\/td><td>\u914d\u7dda\u30d1\u30bf\u30fc\u30f3\u306e\u5f62\u72b6\u3068\u516c\u5dee\u3092\u78ba\u8a8d\u3059\u308b<\/td><\/tr><tr><td>\u30c1\u30e3\u30cd\u30eb\u640d\u5931<\/td><td>\u5bfe\u8c61\u5468\u6ce2\u6570\u5e2f\u57df\u5168\u4f53\u3067\u306eDf\u3001\u9285\u7b94\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3001\u30c1\u30e3\u30cd\u30eb\u89e3\u6790<\/td><td>\u63d0\u6848\u3055\u308c\u3066\u3044\u308b\u7a4d\u5c64\u677f\u3092\u7dad\u6301\u3059\u308b\u304b\u3001\u4f4e\u640d\u5931\u306e\u9078\u629e\u80a2\u3092\u8a55\u4fa1\u3059\u308b<\/td><\/tr><tr><td>\u5b9f\u88c5\u3068\u71b1\u30b5\u30a4\u30af\u30eb<\/td><td>Tg\u306e\u6e2c\u5b9a\u65b9\u6cd5\u3001Td\u306e\u5224\u5b9a\u57fa\u6e96\u3001\u81a8\u5f35\u3001\u5c64\u9593\u5265\u96e2\u30c7\u30fc\u30bf\u3001\u95a2\u9023\u3059\u308b\u8a8d\u5b9a<\/td><td>\u60f3\u5b9a\u3055\u308c\u308b\u71b1\u66dd\u9732\u6761\u4ef6\u3078\u306e\u9069\u5408\u6027\u3092\u78ba\u8a8d\u3059\u308b<\/td><\/tr><tr><td>\u653e\u71b1<\/td><td>\u65b9\u5411\u5225\u71b1\u4f1d\u5c0e\u7387\u3068\u5b8c\u5168\u306a\u71b1\u30e2\u30c7\u30eb<\/td><td>\u71b1\u7d4c\u8def\u3092\u6539\u5584\u3059\u308b\u304b\u3001\u5225\u306e\u69cb\u6210\u3092\u8a55\u4fa1\u3059\u308b<\/td><\/tr><tr><td>\u7d76\u7e01\u6027\u3068\u6e7f\u5ea6<\/td><td>\u5fc5\u8981\u306a\u96fb\u6c17\u7684\u7279\u6027\u3068\u3001\u95a2\u9023\u3059\u308b\u74b0\u5883\u8a66\u9a13\u306e\u30a8\u30d3\u30c7\u30f3\u30b9<\/td><td>\u88fd\u54c1\u30ec\u30d9\u30eb\u306e\u7d76\u7e01\u8981\u4ef6\u3078\u306e\u9069\u5408\u6027\u3092\u78ba\u8a8d\u3059\u308b<\/td><\/tr><tr><td>\u30b3\u30b9\u30c8\u3068\u4f9b\u7d66\u7d99\u7d9a\u6027<\/td><td>\u63d0\u6848\u6750\u6599\u3001\u69cb\u6210\u306e\u5165\u624b\u53ef\u80fd\u6027\u3001\u7d0d\u671f\u3001\u4ee3\u66ff\u54c1\u306b\u95a2\u3059\u308b\u6587\u66f8<\/td><td>\u6587\u66f8\u5316\u3055\u308c\u305f\u8abf\u9054\u65b9\u91dd\u3092\u627f\u8a8d\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u308a\u5e45\u5e83\u3044\u4ee3\u66ff\u54c1\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/fr-4-material-properties\/\" data-type=\"post\" data-id=\"7918\">PCB\u6750\u6599\u9078\u5b9a\u30ac\u30a4\u30c9 <\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u66ff\u54c1\u3092\u8a55\u4fa1\u3059\u308b\u969b\u306f\u3001\u6b21\u306e2\u70b9\u3092\u5206\u3051\u3066\u8003\u3048\u307e\u3059\u3002 <strong>\u4ed5\u69d8\u3092\u6e80\u305f\u3059\u3053\u3068<\/strong> \u3068 <strong>\u691c\u8a3c\u6e08\u307f\u306e\u8a2d\u8a08\u3092\u7dad\u6301\u3059\u308b\u3053\u3068<\/strong>\u3002\u540c\u3058\u6700\u4f4e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u3066\u3082\u3001\u96fb\u6c17\u7684\u7279\u6027\u3084\u88fd\u9020\u6642\u306e\u6319\u52d5\u304c\u540c\u4e00\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u677f\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u7279\u6027\u306b\u57fa\u3065\u304f\u6bd4\u8f03\u3092\u4f9d\u983c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u69cb\u6210\u3001\u9285\u7b94\u3001\u8a66\u9a13\u65b9\u6cd5\u3001\u8a8d\u5b9a\u72b6\u6cc1\u306e\u5909\u66f4\u3092\u8a18\u9332\u3057\u3001\u89e3\u6790\u3084\u8a8d\u5b9a\u3092\u3084\u308a\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308b\u304b\u5224\u65ad\u3057\u307e\u3059\u3002\u8cfc\u8cb7\u90e8\u9580\u306b\u306f\u3001\u627f\u8a8d\u3001\u6761\u4ef6\u4ed8\u304d\u627f\u8a8d\u3001\u5374\u4e0b\u306e\u3044\u305a\u308c\u304b\u3092\u660e\u78ba\u306b\u4f1d\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FR-4\u57fa\u677f\u306e\u554f\u3044\u5408\u308f\u305b\u306b\u542b\u3081\u308b\u5185\u5bb9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u52b9\u679c\u7684\u306a\u554f\u3044\u5408\u308f\u305b\u3067\u306f\u3001\u88fd\u9020\u30c7\u30fc\u30bf\u3068\u3001\u305d\u308c\u3060\u3051\u3067\u306f\u4f1d\u3048\u3089\u308c\u306a\u3044\u52d5\u4f5c\u8981\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"439\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/pcb-fr-4-laminate-selection-inquiry-workflow.webp\" alt=\"Workflow flowchart from PCB stackup electrical modeling and material selection to vendor inquiry and purchase approval\" class=\"wp-image-23595\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/pcb-fr-4-laminate-selection-inquiry-workflow.webp 1200w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/pcb-fr-4-laminate-selection-inquiry-workflow-300x110.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/pcb-fr-4-laminate-selection-inquiry-workflow-1024x375.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/pcb-fr-4-laminate-selection-inquiry-workflow-768x281.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/07\/pcb-fr-4-laminate-selection-inquiry-workflow-18x7.webp 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u7528\u9014\u3068\u74b0\u5883\uff1a<\/strong> \u6a5f\u80fd\u3001\u4e88\u60f3\u3055\u308c\u308b\u57fa\u677f\u6e29\u5ea6\u3001\u6e7f\u5ea6\u3001\u96fb\u5727\u30b9\u30c8\u30ec\u30b9\u3001\u60f3\u5b9a\u8010\u7528\u5e74\u6570\u3002<\/li>\n\n\n\n<li><strong>\u5b9f\u88c5\u6642\u306e\u66dd\u9732\u6761\u4ef6\uff1a<\/strong> \u4e88\u5b9a\u3057\u3066\u3044\u308b\u306f\u3093\u3060\u4ed8\u3051\u5de5\u7a0b\u3001\u5229\u7528\u53ef\u80fd\u306a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3001\u304a\u3088\u3073\u60f3\u5b9a\u3055\u308c\u308b\u624b\u76f4\u3057\u3002<\/li>\n\n\n\n<li><strong>\u57fa\u677f\u69cb\u9020\uff1a<\/strong> \u5c64\u6570\u3001\u5b8c\u6210\u539a\u3055\u3068\u516c\u5dee\u3001\u9285\u7b94\u306e\u8981\u4ef6\u3001\u304a\u3088\u3073\u63d0\u6848\u3059\u308b\u7a4d\u5c64\u69cb\u6210\u3002<\/li>\n\n\n\n<li><strong>\u96fb\u6c17\u7684\u76ee\u6a19\uff1a<\/strong> \u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5024\u3068\u516c\u5dee\u3001\u95a2\u9023\u3059\u308b\u5468\u6ce2\u6570\u7bc4\u56f2\u3001\u91cd\u8981\u306a\u914d\u7dda\u9577\u3001\u304a\u3088\u3073\u640d\u5931\u307e\u305f\u306f\u9045\u5ef6\u306e\u4e0a\u9650\u3002<\/li>\n\n\n\n<li><strong>\u6750\u6599\u8981\u4ef6\uff1a<\/strong> \u6307\u5b9a\u30e1\u30fc\u30ab\u30fc\uff0f\u88fd\u54c1\u3001\u9069\u7528\u3055\u308c\u308b\u898f\u683c\u3068\u6539\u8a02\u7248\u3001\u307e\u305f\u306f\u6750\u6599\u306e\u9078\u629e\u304c\u53ef\u80fd\u306a\u5834\u5408\u306e\u6e2c\u5b9a\u53ef\u80fd\u306a\u6027\u80fd\u57fa\u6e96\u3002<\/li>\n\n\n\n<li><strong>\u53d7\u3051\u5165\u308c\u57fa\u6e96\u3068\u6587\u66f8\uff1a<\/strong> \u5fc5\u8981\u306a\u7279\u6027\u306e\u4e0a\u9650\u30fb\u4e0b\u9650\u3001\u8a66\u9a13\u65b9\u6cd5\u3001\u524d\u51e6\u7406\u6761\u4ef6\u3001\u8a3c\u660e\u66f8\u3001\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u5408\u610f\u6e08\u307f\u306e\u8a66\u9a13\u5831\u544a\u66f8\u3002<\/li>\n\n\n\n<li><strong>\u4ee3\u66ff\u54c1\u306b\u95a2\u3059\u308b\u65b9\u91dd\uff1a<\/strong> \u4ee3\u66ff\u54c1\u304c\u8a8d\u3081\u3089\u308c\u308b\u304b\u3069\u3046\u304b\u3001\u304a\u3088\u3073\u627f\u8a8d\u8005\u3002<\/li>\n\n\n\n<li><strong>\u5546\u696d\u4e0a\u306e\u8981\u4ef6\uff1a<\/strong> \u8a66\u4f5c\u304a\u3088\u3073\u91cf\u7523\u306e\u6570\u91cf\u3001\u7d0d\u5165\u76ee\u6a19\u3001\u304a\u3088\u3073\u4f9b\u7d66\u7d99\u7d9a\u306b\u95a2\u3059\u308b\u8981\u4ef6\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u78ba\u306a\u6750\u6599\u304c\u307e\u3060\u6c7a\u307e\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u63d0\u6848\u3059\u308b\u7a4d\u5c64\u677f\u3068\u69cb\u6210\u3092\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u660e\u793a\u3057\u3066\u3082\u3089\u3044\u3001\u6307\u5b9a\u3057\u305f\u8981\u4ef6\u3078\u306e\u9069\u5408\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u3066\u3082\u3089\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6027\u80fd\u304c\u91cd\u8996\u3055\u308c\u308b\u6848\u4ef6\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u554f\u3044\u5408\u308f\u305b\u6587\u304c\u5f79\u7acb\u3061\u307e\u3059\uff1a<\/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\">\u63d0\u6848\u3059\u308b\u7a4d\u5c64\u677f\u306e\u30e1\u30fc\u30ab\u30fc\u3001\u88fd\u54c1\u540d\u3001\u30b3\u30a2\u304a\u3088\u3073\u30d7\u30ea\u30d7\u30ec\u30b0\u306e\u69cb\u6210\u3001\u306a\u3089\u3073\u306b\u6839\u62e0\u3068\u306a\u308b\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e\u6539\u8a02\u7248\u3092\u660e\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63d0\u793a\u3057\u305f\u8981\u4ef6\u304b\u3089\u306e\u9038\u8131\u304c\u3042\u308c\u3070\u8a18\u8f09\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u627f\u8a8d\u6e08\u307f\u306e\u6750\u6599\u307e\u305f\u306f\u69cb\u6210\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u3001\u6280\u8853\u90e8\u9580\u304b\u3089\u66f8\u9762\u306b\u3088\u308b\u627f\u8a8d\u3092\u5f97\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u7684\u306f\u3001\u5b9f\u969b\u306ePCB\u8a2d\u8a08\u306b\u5373\u3057\u305f\u5408\u610f\u6e08\u307f\u306e\u6750\u6599\u4ed5\u69d8\u3092\u5b9a\u3081\u308b\u3053\u3068\u3067\u3059\u3002\u7a4d\u5c64\u69cb\u6210\u3001\u88fd\u9020\u30c7\u30fc\u30bf\u3001\u304a\u3088\u3073\u4f7f\u7528\u8981\u4ef6\u3092\u6dfb\u3048\u3066\u3001\u6b21\u306e\u5185\u5bb9\u3092\u304a\u9001\u308a\u304f\u3060\u3055\u3044\uff1a <a href=\"https:\/\/lead-pcb.com\/ja\/pcb-manufacturing\/fr-4-pcb\/\" data-type=\"page\" data-id=\"6535\">LEADHUI PCB\u3078\u306eFR-4 PCB\u306b\u95a2\u3059\u308b\u554f\u3044\u5408\u308f\u305b<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>The FR-4 material properties that matter most depend on what your PCB must withstand: electrical signals, assembly heat, operating temperatures, voltage stress, moisture, and mechanical loading. Start with dielectric constant and loss, thermal expansion and stability, insulation performance, and mechanical requirements. FR-4 is a flame-retardant, glass-reinforced epoxy material class. It does not identify one fixed formulation or set of numerical properties. Select a named laminate and evaluate its data under conditions relevant to your design. This guide explains how to interpret those properties, compare candidate constructions, and give your PCB supplier requirements that engineering and purchasing can both use. Key Takeaways FR-4 Material Properties at a Glance A Reference Table [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23592,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"FR-4 Material Properties: A PCB Laminate Selection Guide","_seopress_titles_desc":"Understand FR-4 material properties, compare laminate datasheets, and specify Dk, Tg, CTE, thermal performance, and material requirements for your PCB inquiry.","_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":[14,2],"tags":[],"class_list":["post-7918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electronic-circuit","category-pcb-design"],"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/posts\/7918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/comments?post=7918"}],"version-history":[{"count":0,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/posts\/7918\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/media\/23592"}],"wp:attachment":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/media?parent=7918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/categories?post=7918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/tags?post=7918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}