{"id":2012,"date":"2024-07-11T12:41:52","date_gmt":"2024-07-11T12:41:52","guid":{"rendered":"https:\/\/tryvary.com\/?p=2012"},"modified":"2024-07-11T12:41:52","modified_gmt":"2024-07-11T12:41:52","slug":"pcba-testing-methods-for-reliability-analysis","status":"publish","type":"post","link":"https:\/\/tryvary.com\/vi\/phuong-phap-thu-nghiem-pcba-de-phan-tich-do-tin-cay\/","title":{"rendered":"7 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra PCBA t\u1ed1t nh\u1ea5t \u0111\u1ec3 ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady"},"content":{"rendered":"<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a B\u1ed9 l\u1eafp r\u00e1p b\u1ea3ng m\u1ea1ch in (PCBA), chi\u1ebfn l\u01b0\u1ee3c th\u1eed nghi\u1ec7m k\u1ef9 l\u01b0\u1ee1ng bao g\u1ed3m nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. B\u1ea3y ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady l\u00e0 Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c (ALT), Ph\u00e2n t\u00edch \u1ea3nh h\u01b0\u1edfng v\u00e0 ph\u01b0\u01a1ng th\u1ee9c h\u01b0 h\u1ecfng (FMEA), Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c cao (HALT), Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9, Ph\u01b0\u01a1ng ph\u00e1p s\u00e0ng l\u1ecdc \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng (ESS), \u0110\u1ed1t ch\u00e1y v\u00e0 Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 v\u00e0 <strong>Ki\u1ec3m tra v\u00e0 ki\u1ec3m tra trong m\u1ea1ch<\/strong>. M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p nh\u1eafm \u0111\u1ebfn c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3 v\u1ec1 \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA, t\u1eeb vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea1ng l\u1ed7i ti\u1ec1m \u1ea9n \u0111\u1ebfn ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a PCBA v\u00e0 sau \u0111\u00f3 ng\u0103n ng\u1eeba l\u1ed7i s\u1ea3n ph\u1ea9m.<\/p>\n<h2>B\u00e0i h\u1ecdc ch\u00ednh<\/h2>\n<ul>\n<li>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p Ki\u1ec3m tra tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c (ALT) v\u00e0 Ki\u1ec3m tra tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c cao (HALT) d\u1ef1 \u0111o\u00e1n \u0111\u1ed9 tin c\u1eady th\u00f4ng qua c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u0103ng th\u1eb3ng gia t\u0103ng v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng th\u1ee9c h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n.<\/li>\n<li>Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 m\u00f4 ph\u1ecfng \u1ee9ng su\u1ea5t nhi\u1ec7t trong th\u1ebf gi\u1edbi th\u1ef1c \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t kh\u00e1c nhau v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n.<\/li>\n<li>Ph\u00e2n t\u00edch Hi\u1ec7u \u1ee9ng v\u00e0 Ch\u1ebf \u0111\u1ed9 L\u1ed7i (FMEA) ph\u00e2n lo\u1ea1i c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i, x\u00e1c \u0111\u1ecbnh c\u00e1c r\u1ee7i ro l\u1ed7i ti\u1ec1m \u1ea9n v\u00e0 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady th\u00f4ng qua c\u00e1c c\u1ea3i ti\u1ebfn thi\u1ebft k\u1ebf ch\u1ee7 \u0111\u1ed9ng.<\/li>\n<li>S\u00e0ng l\u1ecdc s\u1ee9c \u00e9p m\u00f4i tr\u01b0\u1eddng (ESS) v\u00e0 th\u1eed nghi\u1ec7m Burn-In ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c \u0111i\u1ec3m y\u1ebfu v\u00e0 khi\u1ebfm khuy\u1ebft ti\u1ec1m \u1ea9n trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf, gi\u1ea3m nguy c\u01a1 l\u00e0m l\u1ea1i t\u1ed1n k\u00e9m.<\/li>\n<li>Ki\u1ec3m tra v\u00e0 ki\u1ec3m tra trong m\u1ea1ch x\u00e1c minh v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ph\u00e2n c\u1ef1c ch\u00ednh x\u00e1c v\u00e0 ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c l\u1ed7i, cho ph\u00e9p s\u1eeda ch\u1eefa hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed.<\/li>\n<\/ul>\n<h2>Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra cu\u1ed9c s\u1ed1ng t\u0103ng t\u1ed1c (ALT)<\/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\/6GvMJCydOG0\" 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>Ki\u1ec3m tra cu\u1ed9c s\u1ed1ng t\u0103ng t\u1ed1c (ALT) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 <strong>\u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft k\u1ebf PCBA<\/strong> b\u1eb1ng c\u00e1ch \u0111\u1eb7t ch\u00fang v\u00e0o c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u0103ng th\u1eb3ng gia t\u0103ng m\u00f4 ph\u1ecfng s\u1ef1 l\u00e3o h\u00f3a v\u00e0 <strong>d\u1ef1 \u0111o\u00e1n \u0111\u1ed9 tin c\u1eady<\/strong>. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 v\u00e0 d\u1ef1 \u0111o\u00e1n \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n<p>B\u1eb1ng c\u00e1ch \u01b0\u1edbc t\u00ednh tu\u1ed5i th\u1ecd d\u1ef1 ki\u1ebfn th\u00f4ng qua <strong>ph\u00e2n t\u00edch t\u1ef7 l\u1ec7 th\u1ea5t b\u1ea1i v\u00e0 ngo\u1ea1i suy<\/strong>, ALT x\u00e1c \u0111\u1ecbnh <strong>tu\u1ed5i th\u1ecd<\/strong>, cho ph\u00e9p c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t. ALT c\u00f3 hi\u1ec7u qu\u1ea3 trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh <strong>c\u00e1c ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i ti\u1ec1m \u1ea9n s\u1edbm<\/strong>, cho ph\u00e9p c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft k\u1ebf.<\/p>\n<p>B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh <strong>gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng v\u00e0 ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/strong>, ALT n\u00e2ng cao \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a thi\u1ebft k\u1ebf PCBA. Th\u00f4ng qua ALT, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n, gi\u1ea3m r\u1ee7i ro khi thi\u1ebft k\u1ebf l\u1ea1i t\u1ed1n k\u00e9m v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n<h2>Ph\u00e2n t\u00edch hi\u1ec7u \u1ee9ng v\u00e0 ch\u1ebf \u0111\u1ed9 l\u1ed7i (FMEA)<\/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\/analyzing_failure_modes_systematically.jpg\" alt=\"ph\u00e2n t\u00edch c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>Trong b\u1ed1i c\u1ea3nh ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA, Ph\u00e2n t\u00edch \u1ea3nh h\u01b0\u1edfng v\u00e0 ph\u01b0\u01a1ng th\u1ee9c h\u01b0 h\u1ecfng (FMEA) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft y\u1ebfu li\u00ean quan \u0111\u1ebfn vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u00e0 ph\u00e2n lo\u1ea1i <strong>ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i ti\u1ec1m n\u0103ng<\/strong>, c\u0169ng nh\u01b0 \u0111\u00e1nh gi\u00e1 ch\u00fang <strong>\u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed5ng th\u1ec3<\/strong> \u0110\u1ed9 tin c\u1eady h\u1ec7 th\u1ed1ng.<\/p>\n<p>\u0110\u1ec3 tri\u1ec3n khai FMEA m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, c\u1ea7n c\u00f3 c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng, bao g\u1ed3m ph\u00e2n lo\u1ea1i d\u1ea1ng l\u1ed7i v\u00e0 <strong>ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch t\u00e1c \u0111\u1ed9ng<\/strong>.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/h3>\n<p>C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t PCBA s\u1eed d\u1ee5ng Ph\u00e2n t\u00edch \u1ea3nh h\u01b0\u1edfng v\u00e0 ph\u01b0\u01a1ng th\u1ee9c h\u01b0 h\u1ecfng (FMEA) nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng th\u1ee9c h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n, nguy\u00ean nh\u00e2n v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u00fang \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA. FMEA cho ph\u00e9p ph\u00e2n lo\u1ea1i c\u00e1c d\u1ea1ng l\u1ed7i d\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng, kh\u1ea3 n\u0103ng x\u1ea3y ra v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n c\u1ee7a ch\u00fang, t\u1eeb \u0111\u00f3 \u0111\u01b0a ra c\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u c\u00f3 m\u1ee5c ti\u00eau.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center\"><strong>Ph\u00e2n lo\u1ea1i ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/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\">Ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i nghi\u00eam tr\u1ecdng<\/td>\n<td style=\"text-align: center\">C\u00e1c d\u1ea1ng h\u01b0 h\u1ecfng c\u00f3 t\u00e1c \u0111\u1ed9ng cao \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m nh\u1eb9 v\u00e0 ch\u00fa \u00fd ngay l\u1eadp t\u1ee9c.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">C\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i ch\u00ednh<\/td>\n<td style=\"text-align: center\">C\u00e1c d\u1ea1ng l\u1ed7i c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA, y\u00eau c\u1ea7u thay \u0111\u1ed5i thi\u1ebft k\u1ebf v\u00e0 c\u1ea3i ti\u1ebfn quy tr\u00ecnh.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">Ch\u1ebf \u0111\u1ed9 l\u1ed7i nh\u1ecf<\/td>\n<td style=\"text-align: center\">C\u00e1c d\u1ea1ng l\u1ed7i c\u00f3 t\u00e1c \u0111\u1ed9ng t\u1ed1i thi\u1ec3u \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA, c\u1ea7n \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t v\u00e0 c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch hi\u1ec7u \u1ee9ng<\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p Ph\u00e2n t\u00edch Hi\u1ec7u \u1ee9ng v\u00e0 M\u00f4 h\u00ecnh Sai l\u1ed7i (FMEA) cung c\u1ea5p m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u <strong>r\u1ee7i ro th\u1ea5t b\u1ea1i ti\u1ec1m \u1ea9n<\/strong> trong thi\u1ebft k\u1ebf PCBA, cho ph\u00e9p c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t <strong>n\u00e2ng cao \u0111\u1ed9 tin c\u1eady th\u00f4ng qua thi\u1ebft k\u1ebf ch\u1ee7 \u0111\u1ed9ng<\/strong> c\u1ea3i ti\u1ebfn.<\/p>\n<p>B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng FMEA, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng c\u00e1c d\u1ea1ng h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u00fang \u0111\u1ebfn <strong>\u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA<\/strong>. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng, kh\u1ea3 n\u0103ng x\u1ea3y ra v\u00e0 h\u1eadu qu\u1ea3 c\u1ee7a c\u00e1c d\u1ea1ng sai l\u1ed7i, cho ph\u00e9p <strong>\u01b0u ti\u00ean c\u1ea3i ti\u1ebfn thi\u1ebft k\u1ebf<\/strong>. FMEA h\u1ed7 tr\u1ee3 vi\u1ec7c l\u1ef1a ch\u1ecdn <strong>bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u th\u00edch h\u1ee3p<\/strong> \u0111\u1ec3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA d\u1ef1a tr\u00ean c\u00e1c c\u01a1 ch\u1ebf l\u1ed7i \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/p>\n<p>Th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng gi\u1ea3i quy\u1ebft c\u00e1c r\u1ee7i ro h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n, <strong>c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n thi\u1ebft k\u1ebf<\/strong> v\u00e0 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3.<\/p>\n<p>B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n, FMEA t\u1ea1o \u0111i\u1ec1u ki\u1ec7n ph\u00e1t tri\u1ec3n c\u00e1c PCBA \u0111\u00e1ng tin c\u1eady h\u01a1n, gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3y ra l\u1ed7i trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m v\u00e0 t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n<h2>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m cu\u1ed9c s\u1ed1ng t\u0103ng t\u1ed1c cao (HALT)<\/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\/stress_testing_for_reliability.jpg\" alt=\"ki\u1ec3m tra c\u0103ng th\u1eb3ng v\u1ec1 \u0111\u1ed9 tin c\u1eady\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>Ph\u01b0\u01a1ng ph\u00e1p Ki\u1ec3m tra tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c cao (HALT) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady PCBA. N\u00f3 cho ph\u00e9p x\u00e1c \u0111\u1ecbnh <strong>ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i<\/strong> v\u00e0 \u0111i\u1ec3m y\u1ebfu th\u00f4ng qua <strong>ki\u1ec3m tra c\u0103ng th\u1eb3ng t\u0103ng t\u1ed1c<\/strong>. B\u1eb1ng c\u00e1ch \u0111\u1eb7t PCBA v\u00e0o c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, HALT t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i v\u00e0 sai s\u00f3t ti\u1ec1m \u1ea9n, cho ph\u00e9p th\u1ef1c hi\u1ec7n c\u00e1c c\u1ea3i ti\u1ebfn c\u00f3 m\u1ee5c ti\u00eau.<\/p>\n<p>B\u1edfi v\u00ec <strong>s\u00e0ng l\u1ecdc c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng<\/strong> V\u00e0 <strong>x\u00e1c \u0111\u1ecbnh ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/strong>, HALT cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ph\u00e1t tri\u1ec3n c\u00e1c s\u1ea3n ph\u1ea9m m\u1ea1nh m\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n<h3>S\u00e0ng l\u1ecdc c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>Th\u00f4ng th\u01b0\u1eddng, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng S\u00e0ng l\u1ecdc s\u1ee9c \u00e9p m\u00f4i tr\u01b0\u1eddng, \u0111\u1eb7c bi\u1ec7t l\u00e0 ph\u01b0\u01a1ng ph\u00e1p Ki\u1ec3m tra tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c cao (HALT), \u0111\u1ec3 \u0111\u1ea9y c\u00e1c c\u1ee5m b\u1ea3ng m\u1ea1ch in (PCBA) \u0111\u1ebfn gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang v\u00e0 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7 h\u1ed5ng thi\u1ebft k\u1ebf. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh nh\u1eefng \u0111i\u1ec3m y\u1ebfu trong thi\u1ebft k\u1ebf, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 nh\u1eefng thi\u1ebft k\u1ebf m\u1ea1nh m\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady m\u1edbi \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t.<\/p>\n<p>Th\u1eed nghi\u1ec7m HALT l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng trong quy tr\u00ecnh th\u1eed nghi\u1ec7m PCBA, v\u00ec n\u00f3 \u0111\u1ea9y nhanh v\u00f2ng \u0111\u1eddi c\u1ee7a s\u1ea3n ph\u1ea9m, m\u00f4 ph\u1ecfng c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng trong th\u1ebf gi\u1edbi th\u1ef1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n. B\u1eb1ng c\u00e1ch \u0111\u1eb7t PCBA v\u00e0o \u00e1p su\u1ea5t c\u1ef1c cao, th\u1eed nghi\u1ec7m HALT \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c l\u1ed7i thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh s\u1edbm, gi\u1ea3m nguy c\u01a1 l\u00e0m l\u1ea1i t\u1ed1n k\u00e9m v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a PCBA.<\/p>\n<p>Nh\u1eefng l\u1ee3i \u00edch ch\u00ednh c\u1ee7a S\u00e0ng l\u1ecdc c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng b\u1eb1ng HALT bao g\u1ed3m:<\/p>\n<ol>\n<li><strong>C\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft k\u1ebf<\/strong>: Th\u1eed nghi\u1ec7m HALT \u0111\u1ea9y c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n c\u1ee7a ch\u00fang, x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea1ng l\u1ed7i ti\u1ec1m \u1ea9n v\u00e0 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft k\u1ebf t\u1ed5ng th\u1ec3.<\/li>\n<li><strong>Ki\u1ec3m tra cu\u1ed9c s\u1ed1ng t\u0103ng t\u1ed1c<\/strong>: HALT m\u00f4 ph\u1ecfng th\u1eddi gian v\u1eadn h\u00e0nh nhi\u1ec1u n\u0103m ch\u1ec9 trong v\u00e0i gi\u1edd, gi\u1ea3m th\u1eddi gian v\u00e0 chi ph\u00ed li\u00ean quan \u0111\u1ebfn c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m truy\u1ec1n th\u1ed1ng.<\/li>\n<li><strong>Ph\u00e2n t\u00edch nhi\u1ec7t<\/strong>: Th\u1eed nghi\u1ec7m HALT bao g\u1ed3m s\u1ed1c nhi\u1ec7t v\u00e0 ph\u00e2n t\u00edch nhi\u1ec7t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c h\u01b0 h\u1ecfng li\u00ean quan \u0111\u1ebfn nhi\u1ec7t.<\/li>\n<li><strong>Thi\u1ebft k\u1ebf cho \u0111\u1ed9 tin c\u1eady<\/strong>: Th\u1eed nghi\u1ec7m HALT gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf t\u1ea1o ra c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u00e1ng tin c\u1eady h\u01a1n b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft s\u1edbm c\u00e1c \u0111i\u1ec3m y\u1ebfu ti\u1ec1m \u1ea9n trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/li>\n<\/ol>\n<h3>Nh\u1eadn d\u1ea1ng ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/h3>\n<p>Th\u00f4ng qua <strong>ph\u01b0\u01a1ng ph\u00e1p HALT<\/strong>, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t PCBA c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh ti\u1ec1m n\u0103ng <strong>ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i<\/strong> b\u1eb1ng c\u00e1ch bu\u1ed9c h\u1ed9i \u0111\u1ed3ng ph\u1ea3i tu\u00e2n theo <strong>c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng c\u1ef1c \u0111\u1ed9<\/strong>, t\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1c l\u1ed7 h\u1ed5ng c\u00f3 th\u1ec3 v\u1eabn b\u1ecb \u1ea9n.<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m tu\u1ed5i th\u1ecd t\u0103ng t\u1ed1c (HALT) n\u00e0y khi\u1ebfn PCBA g\u1eb7p ph\u1ea3i <strong>\u0111i\u1ec1u ki\u1ec7n c\u0103ng th\u1eb3ng c\u1ef1c \u0111\u1ed9<\/strong>, \u0111\u1ea9y c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n c\u1ee7a ch\u00fang \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh <strong>\u0111i\u1ec3m y\u1ebfu thi\u1ebft k\u1ebf<\/strong> v\u00e0 gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>B\u1eb1ng c\u00e1ch khi\u1ebfn PCBA ch\u1ecbu \u00e1p l\u1ef1c m\u00f4i tr\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n v\u1eadn h\u00e0nh th\u00f4ng th\u01b0\u1eddng, nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea1ng l\u1ed7i, n\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft k\u1ebf.<\/p>\n<p>Ph\u00e2n t\u00edch nhi\u1ec7t v\u00e0 <strong>Ph\u00e2n t\u00edch l\u1ed7i PCB<\/strong> l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a HALT, cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 ph\u1ea3n \u1ee9ng c\u1ee7a PCBA v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n<p>Ki\u1ec3m tra s\u1ee9c ch\u1ecbu \u0111\u1ef1ng trong \u0111i\u1ec1u ki\u1ec7n HALT gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea1ng h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n, cho ph\u00e9p nh\u00e0 s\u1ea3n xu\u1ea5t tinh ch\u1ec9nh thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3.<\/p>\n<p>B\u1eb1ng c\u00e1ch \u0111\u1ea9y PCBA \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c sai s\u00f3t v\u00e0 \u0111i\u1ec3m y\u1ebfu trong thi\u1ebft k\u1ebf, cu\u1ed1i c\u00f9ng t\u1ea1o ra c\u00e1c s\u1ea3n ph\u1ea9m m\u1ea1nh m\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n<p>Hi\u1ec7u qu\u1ea3 <strong>x\u00e1c \u0111\u1ecbnh ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/strong> th\u00f4ng qua HALT cho ph\u00e9p c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf c\u1ee7a h\u1ecd, \u0111\u1ea3m b\u1ea3o s\u1ea3n xu\u1ea5t PCBA ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e1ng tin c\u1eady.<\/p>\n<h2>Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9<\/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\/effective_temperature_cycling_method.jpg\" alt=\"ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea1p xe nhi\u1ec7t \u0111\u1ed9 hi\u1ec7u qu\u1ea3\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>\u0110\u1ec3 PCBA ch\u1ecbu s\u1ef1 dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 m\u00f4 ph\u1ecfng \u1ee9ng su\u1ea5t nhi\u1ec7t trong th\u1ebf gi\u1edbi th\u1ef1c \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t kh\u00e1c nhau. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA d\u01b0\u1edbi \u1ee9ng su\u1ea5t nhi\u1ec7t, c\u00f3 th\u1ec3 g\u00e2y ra h\u01b0 h\u1ecfng do gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i nhi\u1ec7t.<\/p>\n<p>Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 m\u00f4 ph\u1ecfng c\u00e1c bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 trong th\u1ebf gi\u1edbi th\u1ef1c m\u00e0 PCBA c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i. B\u1eb1ng c\u00e1ch cho PCBA ti\u1ebfp x\u00fac v\u1edbi \u1ee9ng su\u1ea5t nhi\u1ec7t, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap d\u1ef1 \u0111o\u00e1n v\u00e0 ng\u0103n ng\u1eeba c\u00e1c h\u01b0 h\u1ecfng li\u00ean quan \u0111\u1ebfn thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 kh\u00eda c\u1ea1nh ch\u00ednh c\u1ee7a th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9:<\/p>\n<ol>\n<li><strong>X\u00e1c \u0111\u1ecbnh nh\u1eefng th\u1ea5t b\u1ea1i ti\u1ec1m \u1ea9n<\/strong>&#58;<\/li>\n<\/ol>\n<p>Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n do s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i nhi\u1ec7t trong PCBA.<\/p>\n<ol>\n<li><strong>\u0110\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady<\/strong>&#58;<\/li>\n<\/ol>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t kh\u00e1c nhau.<\/p>\n<ol>\n<li><strong>M\u00f4 ph\u1ecfng \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf<\/strong>&#58;<\/li>\n<\/ol>\n<p>Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 m\u00f4 ph\u1ecfng c\u00e1c bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 trong th\u1ebf gi\u1edbi th\u1ef1c m\u00e0 PCBA c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i.<\/p>\n<ol>\n<li><strong>D\u1ef1 \u0111o\u00e1n v\u00e0 ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1<\/strong>&#58;<\/li>\n<\/ol>\n<h2>Ph\u01b0\u01a1ng ph\u00e1p s\u00e0ng l\u1ecdc c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng (ESS)<\/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\/environmental_stress_testing_method.jpg\" alt=\"ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>Ngo\u00e0i th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9, m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p quan tr\u1ecdng kh\u00e1c \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA l\u00e0 S\u00e0ng l\u1ecdc s\u1ee9c \u00e9p m\u00f4i tr\u01b0\u1eddng (ESS), bao g\u1ed3m vi\u1ec7c \u0111\u1eb7t c\u00e1c thi\u1ebft b\u1ecb PCBA ch\u1ecbu \u00e1p l\u1ef1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 rung v\u00e0 \u0111\u1ed9 \u1ea9m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt ti\u1ec1m \u1ea9n tr\u01b0\u1edbc khi v\u1eadn chuy\u1ec3n. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c khuy\u1ebft t\u1eadt v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c \u0111\u01a1n v\u1ecb PCBA.<\/p>\n<p>ESS l\u00e0 m\u1ed9t b\u01b0\u1edbc thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb PCBA b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh s\u1edbm c\u00e1c l\u1ed7i ti\u1ec1m \u1ea9n trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. B\u1eb1ng c\u00e1ch \u0111\u1eb7t c\u00e1c thi\u1ebft b\u1ecb ch\u1ecbu \u00e1p l\u1ef1c v\u1ec1 m\u00f4i tr\u01b0\u1eddng, nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 s\u00e0ng l\u1ecdc c\u00e1c thi\u1ebft b\u1ecb y\u1ebfu c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, t\u1eeb \u0111\u00f3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center\"><strong>M\u00f4i tr\u01b0\u1eddng c\u0103ng th\u1eb3ng<\/strong><\/th>\n<th style=\"text-align: center\"><strong>M\u1ee5c \u0111\u00edch<\/strong><\/th>\n<th style=\"text-align: center\"><strong>Nh\u1eefng l\u1ee3i \u00edch<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: center\">Nhi\u1ec7t \u0111\u1ed9<\/td>\n<td style=\"text-align: center\">X\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9<\/td>\n<td style=\"text-align: center\">C\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady, gi\u1ea3m th\u1ea5t b\u1ea1i t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">Rung<\/td>\n<td style=\"text-align: center\">X\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt li\u00ean quan \u0111\u1ebfn rung \u0111\u1ed9ng<\/td>\n<td style=\"text-align: center\">T\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n s\u1ea3n ph\u1ea9m<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u0110\u1ed9 \u1ea9m<\/td>\n<td style=\"text-align: center\">X\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 \u1ea9m<\/td>\n<td style=\"text-align: center\">Gi\u1ea3m y\u00eau c\u1ea7u b\u1ea3o h\u00e0nh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed1t ch\u00e1y<\/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\/testing_for_burn_in_process.jpg\" alt=\"th\u1eed nghi\u1ec7m \u0111\u1ed1t ch\u00e1y trong qu\u00e1 tr\u00ecnh\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA, th\u1eed nghi\u1ec7m Burn-In v\u00e0 Nhi\u1ec7t \u0111\u1ed9 n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt ti\u1ec1m \u1ea9n v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t d\u01b0\u1edbi \u00e1p l\u1ef1c nhi\u1ec7t.<\/p>\n<p>Th\u1eed nghi\u1ec7m Burn-In li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u01b0a PCBA v\u00e0o nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1p l\u1ef1c v\u1eadn h\u00e0nh trong th\u1eddi gian d\u00e0i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt ti\u1ec1m \u1ea9n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n l\u1ed7i g\u00e2y t\u1eed vong \u1edf tr\u1ebb s\u01a1 sinh b\u1eb1ng c\u00e1ch t\u1ea1o \u00e1p l\u1ef1c cho c\u00e1c b\u1ed9 ph\u1eadn \u1edf nhi\u1ec7t \u0111\u1ed9 cao tr\u01b0\u1edbc khi tri\u1ec3n khai.<\/p>\n<p>M\u1eb7t kh\u00e1c, ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u1ee9ng su\u1ea5t nhi\u1ec7t.<\/p>\n<p>Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a th\u1eed nghi\u1ec7m Burn-In v\u00e0 Nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft nh\u01b0 sau:<\/p>\n<ol>\n<li><strong>Ph\u00e1t hi\u1ec7n c\u00e1c khuy\u1ebft t\u1eadt ti\u1ec1m \u1ea9n<\/strong>: Th\u1eed nghi\u1ec7m Burn-In x\u00e1c \u0111\u1ecbnh c\u00e1c l\u1ed7i c\u00f3 th\u1ec3 kh\u00f4ng r\u00f5 r\u00e0ng trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m ban \u0111\u1ea7u.<\/li>\n<li><strong>\u0110\u00e1nh gi\u00e1 \u1ee9ng su\u1ea5t nhi\u1ec7t<\/strong>: Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t PCBA trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t.<\/li>\n<li><strong>Ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 s\u1edbm<\/strong>: C\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec1u gi\u00fap ng\u0103n ng\u1eeba nh\u1eefng sai s\u00f3t s\u1edbm t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft s\u1edbm c\u00e1c khi\u1ebfm khuy\u1ebft.<\/li>\n<li><strong>\u0110\u1ed9 tin c\u1eady PCBA n\u00e2ng cao<\/strong>: Ki\u1ec3m tra th\u1eed nghi\u1ec7m \u0111\u1ed1t ch\u00e1y v\u00e0 nhi\u1ec7t \u0111\u1ed9 l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<\/ol>\n<h2>Ki\u1ec3m tra v\u00e0 ki\u1ec3m tra trong m\u1ea1ch<\/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\/quality_control_electronics_manufacturing.jpg\" alt=\"s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng\" style=\"aspect-ratio: 16\/9;\"><\/div>\n<p>L\u00e0 m\u1ed9t b\u01b0\u1edbc thi\u1ebft y\u1ebfu trong quy tr\u00ecnh ki\u1ec3m tra PCBA, Ki\u1ec3m tra trong m\u1ea1ch (ICT) cho ph\u00e9p x\u00e1c minh v\u1ecb tr\u00ed, c\u1ef1c t\u00ednh v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a th\u00e0nh ph\u1ea7n tr\u00ean c\u00e1c PCBA \u0111\u00e3 l\u1eafp r\u00e1p, ph\u00e1t hi\u1ec7n c\u00e1c khuy\u1ebft t\u1eadt v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt thi\u1ebft k\u1ebf v\u00e0 ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng. Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra n\u00e0y s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh tr\u00ean gi\u01b0\u1eddng \u0111inh \u0111\u1ec3 ki\u1ec3m tra c\u00e1c b\u1ed9 ph\u1eadn m\u00e0 kh\u00f4ng c\u1ea5p ngu\u1ed3n cho bo m\u1ea1ch, cho ph\u00e9p ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i b\u1ed9 ph\u1eadn nh\u01b0 \u0111o\u1ea3n m\u1ea1ch, h\u1edf m\u1ea1ch v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb kh\u00f4ng ch\u00ednh x\u00e1c.<\/p>\n<p>CNTT l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt ph\u00e2n t\u00edch l\u1ed7i nghi\u00eam tr\u1ecdng v\u00ec n\u00f3 c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1edbm c\u00e1c l\u1ed7i trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, cho ph\u00e9p s\u1eeda ch\u1eefa m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed tr\u01b0\u1edbc khi tri\u1ec3n khai. B\u1eb1ng c\u00e1ch \u0111\u1ea3m b\u1ea3o PCBA \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt thi\u1ebft k\u1ebf v\u00e0 ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng, CNTT \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center\"><strong>L\u1ee3i \u00edch CNTT<\/strong><\/th>\n<th style=\"text-align: center\"><strong>Ph\u00e1t hi\u1ec7n khuy\u1ebft t\u1eadt<\/strong><\/th>\n<th style=\"text-align: center\"><strong>Thu\u1eadn l\u1ee3i<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: center\">X\u00e1c minh v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n<\/td>\n<td style=\"text-align: center\">R\u00fat ng\u1eafn, m\u1edf, gi\u00e1 tr\u1ecb kh\u00f4ng ch\u00ednh x\u00e1c<\/td>\n<td style=\"text-align: center\">Ph\u00e1t hi\u1ec7n khuy\u1ebft t\u1eadt s\u1edbm<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u0110\u1ea3m b\u1ea3o \u0111\u1ed9 ph\u00e2n c\u1ef1c ch\u00ednh x\u00e1c<\/td>\n<td style=\"text-align: center\">L\u1ed7i th\u00e0nh ph\u1ea7n<\/td>\n<td style=\"text-align: center\">S\u1eeda ch\u1eefa hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">Ki\u1ec3m tra ch\u1ee9c n\u0103ng<\/td>\n<td style=\"text-align: center\"><\/td>\n<td style=\"text-align: center\">C\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\"><\/td>\n<td style=\"text-align: center\"><\/td>\n<td style=\"text-align: center\">Tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\"><\/td>\n<td style=\"text-align: center\"><\/td>\n<td style=\"text-align: center\">Gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Ki\u1ec3m tra \u0111\u1ed9 tin c\u1eady cho Pcba l\u00e0 g\u00ec?<\/h3>\n<p>Ki\u1ec3m tra \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA l\u00e0 \u0111\u00e1nh gi\u00e1 c\u00f3 h\u1ec7 th\u1ed1ng v\u1ec1 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ee5m b\u1ea3ng m\u1ea1ch in trong ph\u1ea1m vi <strong>th\u00f4ng s\u1ed1 quy \u0111\u1ecbnh<\/strong> qu\u00e1 tu\u1ed5i th\u1ecd d\u1ef1 \u0111\u1ecbnh c\u1ee7a n\u00f3.<\/p>\n<p>\u0110\u00e1nh gi\u00e1 n\u00e0y m\u00f4 ph\u1ecfng c\u00e1c \u00e1p l\u1ef1c m\u00f4i tr\u01b0\u1eddng trong th\u1ebf gi\u1edbi th\u1ef1c, ch\u1eb3ng h\u1ea1n nh\u01b0 bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 rung v\u00e0 \u0111\u1ed9 \u1ea9m, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh <strong>ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i ti\u1ec1m n\u0103ng<\/strong>, c\u00e1c th\u00e0nh ph\u1ea7n y\u1ebfu v\u00e0 sai s\u00f3t trong thi\u1ebft k\u1ebf.<\/p>\n<h3>7 lo\u1ea1i ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra PCB l\u00e0 g\u00ec?<\/h3>\n<p>Gi\u1ed1ng nh\u01b0 ng\u01b0\u1eddi th\u1ee3 d\u1ec7t b\u1eadc th\u1ea7y, <strong>Quy tr\u00ecnh ki\u1ec3m tra PCB<\/strong> \u0111an xen nhi\u1ec1u lu\u1ed3ng \u0111\u00e1nh gi\u00e1 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t t\u1ea5m th\u1ea3m v\u1ec1 \u0111\u1ed9 tin c\u1eady.<\/p>\n<p>7 lo\u1ea1i <strong>Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra PCB<\/strong> t\u1ea1o th\u00e0nh k\u1ebft c\u1ea5u c\u1ee7a \u0111\u00e1nh gi\u00e1 n\u00e0y.<\/p>\n<p>Th\u1eed nghi\u1ec7m c\u01a1 h\u1ecdc th\u0103m d\u00f2 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u1ea5u tr\u00fac, trong khi th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau.<\/p>\n<p>Ki\u1ec3m tra \u0111i\u1ec7n xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i, ki\u1ec3m tra \u0111\u1ed9 rung m\u00f4 ph\u1ecfng c\u00e1c \u0111i\u1ec1u ki\u1ec7n trong th\u1ebf gi\u1edbi th\u1ef1c v\u00e0 <strong>Ki\u1ec3m tra m\u00f4i tr\u01b0\u1eddng<\/strong> \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u1ea9m v\u00e0 \u0111\u1ed9 \u1ea9m.<\/p>\n<p>Th\u1eed nghi\u1ec7m b\u1ee9c x\u1ea1 h\u00f3a h\u1ecdc v\u00e0 ion h\u00f3a ho\u00e0n th\u00e0nh vi\u1ec7c \u0111\u00e1nh gi\u00e1 k\u1ef9 l\u01b0\u1ee1ng \u0111\u1ed9 tin c\u1eady c\u1ee7a PCB.<\/p>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra b\u1ea3ng m\u1ea1ch PCB?<\/h3>\n<p>\u0110\u1ec3 ki\u1ec3m tra bo m\u1ea1ch PCB, nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 ph\u00e1t hi\u1ec7n l\u1ed7i. Ki\u1ec3m tra quang h\u1ecdc t\u1ef1 \u0111\u1ed9ng (AOI) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c khuy\u1ebft t\u1eadt nh\u01b0 thi\u1ebfu th\u00e0nh ph\u1ea7n ho\u1eb7c sai l\u1ec7ch.<\/p>\n<p>Ngo\u00e0i ra, Ki\u1ec3m tra trong m\u1ea1ch (ICT) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra ch\u1ee9c n\u0103ng v\u00e0 x\u00e1c minh v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n c\u0169ng nh\u01b0 ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n.<\/p>\n<p>Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c khuy\u1ebft t\u1eadt v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a <strong>c\u1ee5m PCB<\/strong>.<\/p>\n<h3>\u0110i\u1ec1u g\u00ec t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c ki\u1ec3m tra Pcb?<\/h3>\n<p>Th\u1ef1c hi\u1ec7n m\u1ed9t lo\u1ea1t c\u00e1c th\u1eed nghi\u1ec7m k\u1ef9 l\u01b0\u1ee1ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c th\u1eed nghi\u1ec7m PCB. \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn <strong>c\u01a1 kh\u00ed<\/strong>, th\u1eed nghi\u1ec7m \u1ee9ng su\u1ea5t nhi\u1ec7t, \u0111i\u1ec7n v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c l\u1ed7i v\u00e0 \u0111i\u1ec3m y\u1ebfu ti\u1ec1m \u1ea9n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Thu h\u1eb9p c\u00e1c l\u1ed7i PCBA b\u1eb1ng 7 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra hi\u1ec7u qu\u1ea3 n\u00e0y nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 ng\u0103n ng\u1eeba l\u1ed7i s\u1ea3n ph\u1ea9m.<\/p>","protected":false},"author":9,"featured_media":2011,"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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