{"id":2092,"date":"2024-07-19T12:41:52","date_gmt":"2024-07-19T12:41:52","guid":{"rendered":"https:\/\/tryvary.com\/?p=2092"},"modified":"2024-07-19T12:41:52","modified_gmt":"2024-07-19T12:41:52","slug":"pcb-layout-design-for-high-speed-signals","status":"publish","type":"post","link":"https:\/\/tryvary.com\/vi\/thiet-ke-bo-tri-pcb-cho-tin-hieu-toc-do-cao\/","title":{"rendered":"\u0110i\u1ec1u quan tr\u1ecdng trong thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao"},"content":{"rendered":"<p>Trong thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao, c\u1ea7n ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn t\u1eebng chi ti\u1ebft v\u00ec nh\u1eefng sai l\u1ec7ch nh\u1ecf c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00edn hi\u1ec7u. <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong> v\u00e0 hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. T\u1ea7n s\u1ed1 t\u00edn hi\u1ec7u, th\u1eddi gian t\u0103ng gi\u1ea3m v\u00e0 c\u00e1c c\u1eb7p vi sai \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u. \u0110\u1ecbnh tuy\u1ebfn theo d\u00f5i th\u00edch h\u1ee3p, <strong>\u0111i\u1ec1u khi\u1ec3n tr\u1edf kh\u00e1ng<\/strong>v\u00e0 th\u00f4ng qua v\u1ecb tr\u00ed l\u00e0 nh\u1eefng c\u00e2n nh\u1eafc quan tr\u1ecdng. Ngo\u00e0i ra, gi\u1ea3m thi\u1ec3u <strong>\u0111\u1ed9 tr\u1ec5 l\u1ec7ch<\/strong> v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m qua <strong>kh\u1edbp chi\u1ec1u d\u00e0i<\/strong>, kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p v\u00e0 che ch\u1eafn l\u00e0 quan tr\u1ecdng. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u1ec1 b\u1ed1 tr\u00ed PCB, th\u00f4ng qua v\u1ecb tr\u00ed v\u00e0 l\u1ef1a ch\u1ecdn th\u00e0nh ph\u1ea7n, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 xu\u1ea5t s\u1eafc. <strong>hi\u1ec7u su\u1ea5t t\u1ed1c \u0111\u1ed9 cao<\/strong>. Vi\u1ec7c th\u0103m d\u00f2 s\u00e2u h\u01a1n c\u00e1c y\u1ebfu t\u1ed1 quan tr\u1ecdng n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<h2>B\u00e0i h\u1ecdc ch\u00ednh<\/h2>\n<ul>\n<li>T\u00edn hi\u1ec7u tr\u00ean 50 MHz y\u00eau c\u1ea7u s\u1ef1 ch\u00fa \u00fd t\u1ec9 m\u1ec9 \u0111\u1ebfn t\u1eebng chi ti\u1ebft \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng.<\/li>\n<li>\u0110\u1ecbnh tuy\u1ebfn theo d\u00f5i, ki\u1ec3m so\u00e1t tr\u1edf kh\u00e1ng v\u00e0 v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n th\u00edch h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao.<\/li>\n<li>Vi\u1ec7c tri\u1ec3n khai c\u00e1c d\u1ea5u v\u1ebft tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, kh\u1edbp \u0111\u1ed9 d\u00e0i v\u00e0 kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p s\u1ebd gi\u1ea3m thi\u1ec3u \u0111\u1ed9 l\u1ec7ch \u0111\u1ed9 tr\u1ec5 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m.<\/li>\n<li>Th\u00f4ng qua v\u1ecb tr\u00ed trong m\u00f4 h\u00ecnh l\u01b0\u1edbi v\u1edbi kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p v\u00e0 s\u1eafp x\u1ebfp \u0111\u1ed1i x\u1ee9ng, \u0111\u1ea3m b\u1ea3o ph\u00e2n ph\u1ed1i d\u00f2ng \u0111i\u1ec7n \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 k\u1ebft h\u1ee3p tr\u1edf kh\u00e1ng.<\/li>\n<li>Vi\u1ec7c duy tr\u00ec c\u00e1c \u0111\u01b0\u1eddng tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, t\u00e1ch bi\u1ec7t c\u00e1c m\u1eb7t ph\u1eb3ng m\u1eb7t \u0111\u1ea5t t\u01b0\u01a1ng t\u1ef1 v\u00e0 k\u1ef9 thu\u1eadt s\u1ed1 c\u0169ng nh\u01b0 l\u1eadp k\u1ebf ho\u1ea1ch cho c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1c \u0111\u1ed9 cao t\u1ed1i \u01b0u.<\/li>\n<\/ul>\n<h2>Nh\u1eefng c\u00e2n nh\u1eafc ch\u00ednh cho t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/h2>\n<div class=\"embed-youtube\" style=\"position: relative; width: 100%; height: 0; padding-bottom: 56.25%; margin-bottom:20px;\"><iframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/VRJI0X-6yTg\" title=\"Tr\u00ecnh ph\u00e1t video YouTube\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n<p>TRONG <strong>thi\u1ebft k\u1ebf t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong>, t\u00edn hi\u1ec7u tr\u00ean 50 MHz \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00fa \u00fd t\u1ec9 m\u1ec9 \u0111\u1ebfn t\u1eebng chi ti\u1ebft. Ngay c\u1ea3 nh\u1eefng sai l\u1ec7ch nh\u1ecf trong thi\u1ebft k\u1ebf b\u1ed1 c\u1ee5c c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong> v\u00e0 t\u1ed5ng th\u1ec3 <strong>hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng<\/strong>.<\/p>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf PCB t\u1ed1c \u0111\u1ed9 cao h\u00e0ng \u0111\u1ea7u, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i t\u00ednh \u0111\u1ebfn t\u00e1c \u0111\u1ed9ng c\u1ee7a <strong>th\u1eddi gian t\u0103ng v\u00e0 gi\u1ea3m<\/strong> v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u. \u0110\u1ecbnh tuy\u1ebfn theo d\u00f5i th\u00edch h\u1ee3p, <strong>\u0111i\u1ec1u khi\u1ec3n tr\u1edf kh\u00e1ng<\/strong>v\u00e0 vi\u1ec7c tham chi\u1ebfu \u0111\u1ebfn m\u1eb7t \u0111\u1ea5t \u1ed5n \u0111\u1ecbnh l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 ph\u1ea3n x\u1ea1 v\u00e0 suy gi\u1ea3m t\u00edn hi\u1ec7u.<\/p>\n<p>N\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u1eb7p vi sai \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m. <strong>\u0110\u1ecbnh tuy\u1ebfn tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/strong> l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 b\u1ed1 c\u1ee5c PCB ph\u1ea3i \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh s\u1ef1 thay \u0111\u1ed5i tr\u1edf kh\u00e1ng.<\/p>\n<p>M\u1ed8T <strong>m\u1eb7t \u0111\u1ea5t r\u1eafn<\/strong> cung c\u1ea5p m\u1ed9t \u0111i\u1ec3m tham chi\u1ebfu \u1ed5n \u0111\u1ecbnh, cho ph\u00e9p \u0111\u01b0\u1eddng d\u1eabn tr\u1edf l\u1ea1i hi\u1ec7u qu\u1ea3 cho t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 nh\u1eefng c\u00e2n nh\u1eafc quan tr\u1ecdng n\u00e0y, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u00e1ng tin c\u1eady v\u00e0 duy tr\u00ec hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng.<\/p>\n<h2>T\u1ed1i \u01b0u h\u00f3a b\u1ed1 c\u1ee5c PCB \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/h2>\n<div class=\"body-image-wrapper\" style=\"margin-bottom:20px;\"><img decoding=\"async\" width=\"1006\" height=\"575\" src=\"https:\/\/tryvary.com\/wp-content\/uploads\/2024\/05\/signal_integrity_in_pcbs.jpg\" alt=\"t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u trong pcbs\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>Thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed PCB hi\u1ec7u qu\u1ea3 cho t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00fa \u00fd t\u1ec9 m\u1ec9 \u0111\u1ebfn vi\u1ec7c ki\u1ec3m so\u00e1t tr\u1edf kh\u00e1ng, <strong>v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n<\/strong>v\u00e0 \u0111\u1ecbnh tuy\u1ebfn t\u00edn hi\u1ec7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong> v\u00e0 gi\u1ea3m thi\u1ec3u s\u1ef1 tho\u00e1i h\u00f3a.<\/p>\n<p>\u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a b\u1ed1 c\u1ee5c PCB \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i th\u1ef1c hi\u1ec7n <strong>d\u1ea5u v\u1ebft tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/strong>, \u0111\u1ea3m b\u1ea3o tr\u1edf kh\u00e1ng th\u1ed1ng nh\u1ea5t v\u00e0 kho\u1ea3ng c\u00e1ch t\u00e1ch bi\u1ec7t \u0111\u1ec3 gi\u1ea3m <strong>xuy\u00ean \u00e2m v\u00e0 ph\u1ea3n x\u1ea1 t\u00edn hi\u1ec7u<\/strong>.<\/p>\n<ul>\n<li>Th\u1ef1c hi\u1ec7n theo d\u00f5i tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u1ec3 duy tr\u00ec tr\u1edf kh\u00e1ng th\u1ed1ng nh\u1ea5t<\/li>\n<li>\u0110\u1eb7t c\u00e1c b\u1ed9 ph\u1eadn g\u1ea7n m\u1eb7t ph\u1eb3ng tham chi\u1ebfu \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 suy gi\u1ea3m v\u00e0 nhi\u1ec5u t\u00edn hi\u1ec7u<\/li>\n<li>S\u1eed d\u1ee5ng <strong>c\u00f4ng c\u1ee5 m\u00f4 ph\u1ecfng<\/strong> \u0111\u1ec3 ph\u00e2n t\u00edch t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u nh\u1eb1m x\u00e1c th\u1ef1c vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc v\u00e0 r\u00e0ng bu\u1ed9c thi\u1ebft k\u1ebf<\/li>\n<li>Tu\u00e2n th\u1ee7 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 gi\u1eef c\u00e1c d\u1ea5u v\u1ebft t\u1ed1c \u0111\u1ed9 cao ng\u1eafn v\u00e0 tr\u1ef1c ti\u1ebfp, \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a t\u00edn hi\u1ec7u<\/li>\n<\/ul>\n<h2>Gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5 tr\u1ec5 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m<\/h2>\n<div class=\"body-image-wrapper\" style=\"margin-bottom:20px;\"><img decoding=\"async\" width=\"1006\" height=\"575\" src=\"https:\/\/tryvary.com\/wp-content\/uploads\/2024\/05\/optimizing_signal_integrity_performance.jpg\" alt=\"t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>\u0110\u1ed9 l\u1ec7ch tr\u1ec5 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng n\u00e0o trong vi\u1ec7c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 l\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 gi\u1ea3m thi\u1ec3u ch\u00fang trong thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao? \u0110\u1ed9 l\u1ec7ch tr\u1ec5 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m l\u00e0 hai th\u1ee7 ph\u1ea1m ch\u00ednh c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u, d\u1eabn \u0111\u1ebfn l\u1ed7i \u0111\u1ecbnh th\u1eddi gian v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center\"><strong>K\u1ef9 thu\u1eadt<\/strong><\/th>\n<th style=\"text-align: center\"><strong>S\u1ef1 mi\u00eau t\u1ea3<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: center\">Kh\u1edbp chi\u1ec1u d\u00e0i<\/td>\n<td style=\"text-align: center\">\u0110\u1ea3m b\u1ea3o th\u1eddi gian truy\u1ec1n b\u1eb1ng nhau cho c\u00e1c t\u00edn hi\u1ec7u trong c\u00e1c c\u1eb7p vi sai \u0111\u1ec3 tr\u00e1nh \u0111\u1ed9 tr\u1ec5 b\u1ecb l\u1ec7ch<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">Kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p<\/td>\n<td style=\"text-align: center\">Duy tr\u00ec kho\u1ea3ng c\u00e1ch v\u1eeba \u0111\u1ee7 gi\u1eefa c\u00e1c t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 ng\u0103n ch\u1eb7n nhi\u1ec5u \u0111i\u1ec7n t\u1eeb v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">Che ch\u1eafn<\/td>\n<td style=\"text-align: center\">S\u1eed d\u1ee5ng m\u1eb7t ph\u1eb3ng m\u1eb7t \u0111\u1ea5t v\u00e0 \u0111\u1ecbnh tuy\u1ebfn vi sai \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nhi\u1ec5u xuy\u00ean \u00e2m<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">Tr\u1edf kh\u00e1ng ph\u00f9 h\u1ee3p<\/td>\n<td style=\"text-align: center\">Ng\u0103n ch\u1eb7n s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p tr\u1edf kh\u00e1ng c\u00f3 th\u1ec3 l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam \u0111\u1ed9 l\u1ec7ch tr\u1ec5 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u1ed9 l\u1ec7ch \u0111\u1ed9 tr\u1ec5 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m trong b\u1ed1 c\u1ee5c t\u1ed1c \u0111\u1ed9 cao. B\u1eb1ng c\u00e1ch tri\u1ec3n khai c\u00e1c k\u1ef9 thu\u1eadt kh\u1edbp \u0111\u1ed9 d\u00e0i, duy tr\u00ec kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p gi\u1eefa c\u00e1c t\u00edn hi\u1ec7u v\u00e0 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p che ch\u1eafn, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9 tr\u1ec5 l\u1ec7ch v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m. B\u1eb1ng c\u00e1ch \u0111\u00f3, h\u1ecd c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u00ednh x\u00e1c, cu\u1ed1i c\u00f9ng l\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed.<\/p>\n<h2>Th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t cho v\u1ecb tr\u00ed Via<\/h2>\n<div class=\"body-image-wrapper\" style=\"margin-bottom:20px;\"><img decoding=\"async\" width=\"1006\" height=\"575\" src=\"https:\/\/tryvary.com\/wp-content\/uploads\/2024\/05\/optimizing_via_placement_techniques.jpg\" alt=\"t\u1ed1i \u01b0u h\u00f3a th\u00f4ng qua k\u1ef9 thu\u1eadt v\u1ecb tr\u00ed\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>V\u1ecb tr\u00ed ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng trong <strong>thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong>, v\u00ec n\u00f3 \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong>&#44; <strong>ph\u00e2n ph\u1ed1i \u0111i\u1ec7n<\/strong>v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) trong b\u1ea3ng m\u1ea1ch in (PCB). Trong c\u00e1c b\u1ed1 tr\u00ed t\u1ed1c \u0111\u1ed9 cao, th\u00f4ng qua v\u1ecb tr\u00ed c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh ho\u1eb7c ph\u00e1 v\u1ee1 hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ea1ch. \u0110\u1ea3m b\u1ea3o <strong>hi\u1ec7u su\u1ea5t \u0111\u1ec9nh cao<\/strong>, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i tu\u00e2n theo <strong>c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t \u0111\u1ec3 th\u00f4ng qua v\u1ecb tr\u00ed<\/strong>.<\/p>\n<p>M\u1ed9t s\u1ed1 c\u00e2n nh\u1eafc ch\u00ednh cho vi\u1ec7c th\u00f4ng qua v\u1ecb tr\u00ed bao g\u1ed3m:<\/p>\n<ul>\n<li>\u0110\u1eb7t vias theo m\u00f4 h\u00ecnh l\u01b0\u1edbi \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u00e2n ph\u1ed1i d\u00f2ng \u0111i\u1ec7n \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c \u0111i\u1ec3m n\u00f3ng tr\u00ean m\u1eb7t ph\u1eb3ng ngu\u1ed3n v\u00e0 m\u1eb7t \u0111\u1ea5t.<\/li>\n<li>Kho\u1ea3ng c\u00e1ch v\u1eeba \u0111\u1ee7 \u0111\u1ec3 tr\u00e1nh bi\u1ebfn \u0111\u1ed5i tr\u1edf kh\u00e1ng v\u00e0 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u trong c\u00e1c b\u1ed1 c\u1ee5c t\u1ed1c \u0111\u1ed9 cao.<\/li>\n<li>S\u1eafp x\u1ebfp \u0111\u1ed1i x\u1ee9ng vias \u0111\u1ec3 lo\u1ea1i b\u1ecf <strong>tr\u1edf kh\u00e1ng kh\u00f4ng ph\u00f9 h\u1ee3p<\/strong> v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u00edn hi\u1ec7u nh\u1ea5t qu\u00e1n.<\/li>\n<li>Xem x\u00e9t c\u1ea9n th\u1eadn vi\u1ec7c b\u1ed1 tr\u00ed gi\u1eefa c\u00e1c c\u1eb7p vi sai \u0111\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng m\u00e9o t\u00edn hi\u1ec7u v\u00e0 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u.<\/li>\n<\/ul>\n<h2>\u0110\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1c \u0111\u1ed9 cao t\u1ed1i \u01b0u<\/h2>\n<div class=\"body-image-wrapper\" style=\"margin-bottom:20px;\"><img decoding=\"async\" width=\"1006\" height=\"575\" src=\"https:\/\/tryvary.com\/wp-content\/uploads\/2024\/05\/optimizing_high_speed_driving_experience.jpg\" alt=\"t\u1ed1i \u01b0u h\u00f3a tr\u1ea3i nghi\u1ec7m l\u00e1i xe t\u1ed1c \u0111\u1ed9 cao\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1c \u0111\u1ed9 cao nh\u1ea5t trong c\u00e1c thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in (PCB), vi\u1ec7c duy tr\u00ec <strong>d\u1ea5u v\u1ebft tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/strong> trong to\u00e0n b\u1ed9 b\u1ed1 c\u1ee5c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong> v\u00e0 gi\u1ea3m thi\u1ec3u nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI). \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 truy\u1ec1n tin c\u1eady <strong>t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong>.<\/p>\n<p>Ngo\u00e0i ra, th\u00edch h\u1ee3p <strong>k\u1ef9 thu\u1eadt t\u00e1ch m\u1eb7t \u0111\u1ea5t<\/strong>, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00e1ch bi\u1ec7t c\u00e1c m\u1eb7t ph\u1eb3ng m\u1eb7t \u0111\u1ea5t t\u01b0\u01a1ng t\u1ef1 v\u00e0 k\u1ef9 thu\u1eadt s\u1ed1, l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u. Th\u1ef1c thi <strong>b\u1ed1 c\u1ee5c ph\u00e2n chia \u1ea3o<\/strong> d\u00e0nh cho m\u1eb7t \u0111\u1ea5t gi\u00fap qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3 d\u00f2ng \u0111i\u1ec7n v\u00e0 gi\u1ea3m EMI.<\/p>\n<p>H\u01a1n th\u1ebf n\u1eefa, <strong>l\u1ef1a ch\u1ecdn chi\u1ec1u r\u1ed9ng th\u00e0nh ph\u1ea7n<\/strong> \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1c \u0111\u1ed9 cao \u1ed5n \u0111\u1ecbnh trong c\u00e1c thi\u1ebft k\u1ebf PCB. L\u1eadp k\u1ebf ho\u1ea1ch ph\u00f9 h\u1ee3p cho c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra trong giai \u0111o\u1ea1n s\u01a1 \u0111\u1ed3 s\u1ebd n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra v\u00e0 x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/p>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Nh\u1eefng c\u00e2n nh\u1eafc cho thi\u1ebft k\u1ebf t\u1ed1c \u0111\u1ed9 cao l\u00e0 g\u00ec?<\/h3>\n<p>Khi d\u1ea5n th\u00e2n v\u00e0o l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf t\u1ed1c \u0111\u1ed9 cao, m\u1ed9t s\u1ed1 c\u00e2n nh\u1eafc quan tr\u1ecdng s\u1ebd \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. N\u1ed5i b\u1eadt trong s\u1ed1 \u0111\u00f3 l\u00e0 <strong>\u0111i\u1ec1u khi\u1ec3n tr\u1edf kh\u00e1ng<\/strong>&#44; <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong>, V\u00e0 <strong>gi\u1ea3m thi\u1ec3u nhi\u1ec5u xuy\u00ean \u00e2m<\/strong>. B\u1eb1ng c\u00e1ch qu\u1ea3n l\u00fd c\u1ea9n th\u1eadn vi\u1ec7c s\u1eafp x\u1ebfp l\u1edbp, v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n v\u00e0 chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 suy gi\u1ea3m t\u00edn hi\u1ec7u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t cao nh\u1ea5t.<\/p>\n<p>Ngo\u00e0i ra, c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 th\u1eddi gian t\u0103ng v\u00e0 gi\u1ea3m t\u00edn hi\u1ec7u, hi\u1ec7u \u1ee9ng \u0111\u01b0\u1eddng truy\u1ec1n v\u00e0 EMI ph\u1ea3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd c\u1ea9n th\u1eadn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng t\u1ed1c \u0111\u1ed9 cao \u0111\u00e1ng tin c\u1eady.<\/p>\n<h3>\u0110i\u1ec1u quan tr\u1ecdng \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf t\u1ed1c \u0111\u1ed9 cao l\u00e0 g\u00ec?<\/h3>\n<p>\u0110i\u1ec1u c\u1ea7n thi\u1ebft cho thi\u1ebft k\u1ebf t\u1ed1c \u0111\u1ed9 cao l\u00e0 s\u1ef1 t\u1ed5ng h\u1ee3p c\u1ee7a nhi\u1ec1u y\u1ebfu t\u1ed1. X\u1ebfp ch\u1ed3ng l\u1edbp th\u00edch h\u1ee3p, v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n v\u00e0 <strong>chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn<\/strong> h\u00ecnh th\u00e0nh n\u1ec1n t\u1ea3ng.<\/p>\n<p>Tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc thi\u1ebft k\u1ebf v\u00e0 qu\u1ea3n l\u00fd s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p tr\u1edf kh\u00e1ng, nhi\u1ec5u xuy\u00ean \u00e2m v\u00e0 <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong> nh\u1eefng th\u00e1ch th\u1ee9c c\u0169ng r\u1ea5t quan tr\u1ecdng. Hi\u1ec3u \u0111\u01b0\u1ee3c t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec5u \u0111\u1ebfn \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a t\u00edn hi\u1ec7u l\u00e0 c\u1ea7n thi\u1ebft.<\/p>\n<h3>Nh\u1eefng c\u00e2n nh\u1eafc ch\u00ednh trong thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed PCB cho giao di\u1ec7n t\u1ed1c \u0111\u1ed9 cao l\u00e0 g\u00ec?<\/h3>\n<p>&#039;C\u1eaft theo \u0111u\u1ed5i&#039; khi n\u00f3i \u0111\u1ebfn <strong>thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed PCB t\u1ed1c \u0111\u1ed9 cao<\/strong>v\u00e0 \u01b0u ti\u00ean <strong>\u0111i\u1ec1u khi\u1ec3n tr\u1edf kh\u00e1ng<\/strong>&#44; <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong>v\u00e0 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t cao nh\u1ea5t.<\/p>\n<p>Nh\u1eefng c\u00e2n nh\u1eafc ch\u00ednh \u0111\u1ed1i v\u1edbi giao di\u1ec7n t\u1ed1c \u0111\u1ed9 cao l\u00e0 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u, qu\u1ea3n l\u00fd tr\u1edf kh\u00e1ng v\u00e0 gi\u1ea3m thi\u1ec3u s\u1ef1 suy gi\u1ea3m t\u00edn hi\u1ec7u th\u00f4ng qua vi\u1ec7c x\u1ebfp ch\u1ed3ng l\u1edbp th\u00edch h\u1ee3p, d\u1ea5u v\u1ebft tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00e0 v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n chi\u1ebfn l\u01b0\u1ee3c.<\/p>\n<h3>Quy t\u1eafc 3h trong thi\u1ebft k\u1ebf PCB l\u00e0 g\u00ec?<\/h3>\n<p>C\u00e1c <strong>quy t\u1eafc 3h<\/strong> trong thi\u1ebft k\u1ebf PCB quy \u0111\u1ecbnh r\u1eb1ng kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u gi\u1eefa c\u00e1c d\u1ea5u hi\u1ec7u t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao ph\u1ea3i \u00edt nh\u1ea5t g\u1ea5p ba l\u1ea7n chi\u1ec1u cao c\u1ee7a ng\u0103n x\u1ebfp PCB.<\/p>\n<p>Quy t\u1eafc n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec <strong>t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong> b\u1eb1ng c\u00e1ch gi\u1ea3m thi\u1ec3u nhi\u1ec5u xuy\u00ean \u00e2m v\u00e0 nhi\u1ec5u t\u00edn hi\u1ec7u gi\u1eefa c\u00e1c d\u1ea5u v\u1ebft, t\u1eeb \u0111\u00f3 gi\u1ea3m nguy c\u01a1 suy gi\u1ea3m t\u00edn hi\u1ec7u ho\u1eb7c l\u1ed7i d\u1eef li\u1ec7u.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng truy\u1ec1n t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao \u0111\u00e1ng tin c\u1eady n\u1eb1m \u1edf vi\u1ec7c n\u1eafm v\u1eefng c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf b\u1ed1 c\u1ee5c quan tr\u1ecdng, nh\u01b0ng ch\u00fang l\u00e0 g\u00ec?<\/p>","protected":false},"author":9,"featured_media":2091,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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Lau","author_link":"https:\/\/tryvary.com\/vi\/author\/wsbpmbzuog4q\/"},"uagb_comment_info":0,"uagb_excerpt":"Key to achieving reliable high-speed signal transmission lies in mastering critical layout design factors&#44; but what are they&#63;","_links":{"self":[{"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/posts\/2092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/comments?post=2092"}],"version-history":[{"count":1,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/posts\/2092\/revisions"}],"predecessor-version":[{"id":2487,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/posts\/2092\/revisions\/2487"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/media\/2091"}],"wp:attachment":[{"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/media?parent=2092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/categories?post=2092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tryvary.com\/vi\/wp-json\/wp\/v2\/tags?post=2092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}