{"id":5599,"date":"2026-02-03T07:07:14","date_gmt":"2026-02-03T07:07:14","guid":{"rendered":"https:\/\/pickandplacemachine.com\/?p=5599"},"modified":"2026-05-20T01:51:30","modified_gmt":"2026-05-20T01:51:30","slug":"component-misalignment-detecting-and-correcting-offset-errors","status":"publish","type":"post","link":"https:\/\/pickandplacemachine.com\/vi\/component-misalignment-detecting-and-correcting-offset-errors\/","title":{"rendered":"Sai l\u1ec7ch th\u00e0nh ph\u1ea7n: Ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i l\u1ec7ch t\u00e2m"},"content":{"rendered":"<p class=\"wp-block-paragraph\">T\u00f4i \u0111\u00e3 ch\u1ee9ng ki\u1ebfn c\u00e1c \u0111\u1ed9i m\u1ea5t hai ca l\u00e0m vi\u1ec7c \u0111\u1ec3 truy t\u00ecm \u201ckeo h\u00e0n k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng\u201d trong khi v\u1ea5n \u0111\u1ec1 th\u1ef1c s\u1ef1 l\u00e0 m\u1ed9t s\u1ef1 d\u1ecbch chuy\u1ec3n X\/Y nh\u00e0m ch\u00e1n, l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, xu\u1ea5t hi\u1ec7n tr\u00ean m\u1ecdi bo m\u1ea1ch m\u1ed9t c\u00e1ch \u0111\u1ec1u \u0111\u1eb7n nh\u01b0 \u0111\u1ed3ng h\u1ed3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ba t\u1eeb: \u0111o l\u01b0\u1eddng sai s\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1edfi v\u00ec&nbsp;<strong>S\u1ef1 l\u1ec7ch v\u1ecb tr\u00ed c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n<\/strong>&nbsp;\u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 duy nh\u1ea5t. \u0110\u00f3 l\u00e0 m\u1ed9t lo\u1ea1t c\u00e1c v\u1ea5n \u0111\u1ec1, v\u00e0 \u201cl\u1ed7i b\u00f9 tr\u1eeb\u201d l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 d\u1ec5 gi\u1ea3i quy\u1ebft nh\u1ea5t \u2014 n\u1ebfu b\u1ea1n ng\u1eebng coi ch\u00fang nh\u01b0 m\u1ed9t b\u00ed \u1ea9n v\u00e0 b\u1eaft \u0111\u1ea7u coi ch\u00fang nh\u01b0 m\u1ed9t cu\u1ed9c xung \u0111\u1ed9t gi\u1eefa d\u1eef li\u1ec7u CAD, c\u00e1c \u0111i\u1ec3m tham chi\u1ebfu, t\u1ea7m nh\u00ecn v\u00e0 t\u00e2m v\u00f2i phun c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady h\u00e3y c\u00f9ng n\u00f3i v\u1ec1 nh\u1eefng \u0111i\u1ec1u m\u00e0 m\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng tr\u00e1nh n\u00f3i ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c tranh lu\u1eadn v\u1ec1 \u201c\u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1eb7t linh ki\u1ec7n\u201d \u0111\u1ec1u l\u00e0 v\u1ea5n \u0111\u1ec1 t\u1ea1m th\u1eddi. N\u1ebfu d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t ch\u00ednh x\u00e1c linh ki\u1ec7n 0402 h\u00f4m nay nh\u01b0ng l\u1ea1i \u0111\u1ea9y m\u1ecdi linh ki\u1ec7n QFN 0.12 mm sang ph\u00eda \u0111\u00f4ng v\u00e0o ng\u00e0y mai, th\u00ec m\u00e1y m\u00f3c c\u1ee7a b\u1ea1n kh\u00f4ng ph\u1ea3i \u0111\u1ed9t nhi\u00ean qu\u00ean \u0111i c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd. \u0110\u00f3 l\u00e0 do quy tr\u00ecnh s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n \u0111\u00e3 thay \u0111\u1ed5i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-intent-behind-the-search\">M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c t\u00ecm ki\u1ebfm<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n g\u00f5 ti\u00eau \u0111\u1ec1 H1 n\u00e0y v\u00e0o Google, b\u1ea1n kh\u00f4ng \u0111ang mua s\u1eafm. B\u1ea1n \u0111ang g\u1eb7p r\u1eafc r\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0&nbsp;<strong>\u00dd \u0111\u1ecbnh th\u00f4ng tin c\u00f3 t\u00ednh ch\u1ea5t c\u1ea5p b\u00e1ch v\u1ec1 m\u1eb7t ho\u1ea1t \u0111\u1ed9ng<\/strong>B\u1ea1n mu\u1ed1n m\u1ed9t c\u00e1ch th\u1ef1c t\u1ebf \u0111\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed9t&nbsp;<strong>L\u1ed7i l\u1ec7ch th\u00e0nh ph\u1ea7n<\/strong>, X\u00e1c \u0111\u1ecbnh xem v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf d\u1eef li\u1ec7u b\u1ea3ng m\u1ea1ch hay hi\u1ec7u chu\u1ea9n m\u00e1y, v\u00e0 kh\u1eafc ph\u1ee5c m\u00e0 kh\u00f4ng bi\u1ebfn d\u00e2y chuy\u1ec1n SMT c\u1ee7a b\u1ea1n th\u00e0nh m\u1ed9t d\u1ef1 \u00e1n khoa h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 c\u0169ng c\u1ea7n b\u1eb1ng ch\u1ee9ng \u0111\u1ec3 tranh lu\u1eadn v\u1edbi ai \u0111\u00f3 cho r\u1eb1ng \u201cAOI s\u1ebd x\u1eed l\u00fd \u0111\u01b0\u1ee3c\u201d c\u00f3 ngh\u0129a l\u00e0 \u201ckh\u00f4ng sao c\u1ea3\u201d.\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"offset-errors-have-fingerprints\">L\u1ed7i l\u1ec7ch c\u00f3 d\u1ea5u v\u00e2n tay<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u00f4 h\u00ecnh t\u01b0 duy m\u00e0 t\u00f4i \u00e1p d\u1ee5ng trong th\u1ef1c t\u1ebf, kh\u00f4ng ph\u1ea3i trong c\u00e1c t\u00e0i li\u1ec7u qu\u1ea3ng c\u00e1o c\u1ee7a nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eabu 1: S\u1ef1 thay \u0111\u1ed5i to\u00e0n c\u1ea7u (t\u1ea5t c\u1ea3 \u0111\u1ec1u thay \u0111\u1ed5i theo c\u00f9ng m\u1ed9t c\u00e1ch).<\/strong>&nbsp;\u0110i\u1ec1u n\u00e0y cho th\u1ea5y c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u1ecda \u0111\u1ed9 datum\/fiducial\/b\u1ea3ng. Ho\u1eb7c \u0111i\u1ec3m tham chi\u1ebfu c\u1ee7a k\u1eb9p b\u0103ng t\u1ea3i \u0111\u00e3 b\u1ecb d\u1ecbch chuy\u1ec3n. Ho\u1eb7c qu\u00e1 tr\u00ecnh hi\u1ec7u chu\u1ea9n camera \u0111\u00e3 b\u1ecb l\u1ec7ch. Nh\u00e0m ch\u00e1n. C\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eabu 2: S\u1ef1 d\u1ecbch chuy\u1ec3n l\u1edbp th\u00e0nh ph\u1ea7n (ch\u1ec9 m\u1ed9t s\u1ed1 ph\u1ea7n b\u1ecb t\u1eaft).<\/strong>&nbsp;B\u00e2y gi\u1edd b\u1ea1n \u0111ang xem x\u00e9t vi\u1ec7c hi\u1ec7u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch v\u00f2i phun, l\u1ed7i kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c b\u1ed9 c\u1ea5p li\u1ec7u, dung sai v\u1ecb tr\u00ed t\u00fai, c\u0103n ch\u1ec9nh t\u00e2m b\u1ed9 thu, ho\u1eb7c c\u00e0i \u0111\u1eb7t \u00e1nh s\u00e1ng\/ng\u01b0\u1ee1ng c\u1ee7a h\u1ec7 th\u1ed1ng quan s\u00e1t h\u00ecnh \u1ea3nh kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang cho c\u00e1c \u0111\u1ea7u n\u1ed1i s\u00e1ng b\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eabu 3: Ph\u00e2n t\u00e1n (h\u01b0\u1edbng ng\u1eabu nhi\u00ean, k\u00edch th\u01b0\u1edbc ng\u1eabu nhi\u00ean).<\/strong>&nbsp;\u0110\u00f3 l\u00e0 do sai s\u1ed1 c\u01a1 h\u1ecdc, bi\u1ebfn d\u1ea1ng, v\u1ea5n \u0111\u1ec1 ch\u00e2n kh\u00f4ng, v\u00f2i phun b\u1ecb cong, linh ki\u1ec7n h\u1ecfng ho\u1eb7c do ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u201ccan thi\u1ec7p\u201d. \u0110\u00f3 c\u0169ng l\u00e0 n\u01a1i m\u1ecdi ng\u01b0\u1eddi l\u00e3ng ph\u00ed th\u1eddi gian v\u00ec kh\u00f4ng c\u00f3 m\u1ed9t c\u1ea7n g\u1ea1t duy nh\u1ea5t \u0111\u1ec3 k\u00e9o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ed7i l\u1ec7ch t\u00e2m xu\u1ea5t hi\u1ec7n trong M\u1eabu 1 v\u00e0 M\u1eabu 2. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang \u0111\u00e1ng \u0111\u1ec3 b\u1ea1n d\u00e0nh th\u1eddi gian.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"detection-stop-staring-at-pictures-start-extracting-numbers\">Ph\u00e1t hi\u1ec7n: \u0110\u1eebng nh\u00ecn ch\u1eb1m ch\u1eb1m v\u00e0o h\u00ecnh \u1ea3nh n\u1eefa, h\u00e3y b\u1eaft \u0111\u1ea7u tr\u00edch xu\u1ea5t s\u1ed1 li\u1ec7u.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ea3nh ch\u1ee5p m\u00e0n h\u00ecnh AOI mang l\u1ea1i c\u1ea3m gi\u00e1c an t\u00e2m. Tuy nhi\u00ean, ch\u00fang c\u0169ng l\u00e0 m\u1ed9t c\u00e1i b\u1eaby. M\u1ed9t h\u00ecnh \u1ea3nh kh\u00f4ng th\u1ec3 cho b\u1ea1n bi\u1ebft li\u1ec7u l\u1ed7i c\u00f3 ph\u1ea3i l\u00e0...&nbsp;<strong>c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f4i mu\u1ed1n m\u1ed9t b\u1ed9 d\u1eef li\u1ec7u \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00e3 b\u1ea3ng (ho\u1eb7c v\u1ecb tr\u00ed b\u1ea3ng)<\/li>\n\n\n\n<li>M\u00e3 tham chi\u1ebfu \/ Lo\u1ea1i g\u00f3i<\/li>\n\n\n\n<li>L\u1ed7i X (mm)<\/li>\n\n\n\n<li>L\u1ed7i Y (mm)<\/li>\n\n\n\n<li>L\u1ed7i Theta (\u0111\u1ed9)<\/li>\n\n\n\n<li>D\u1ea5u th\u1eddi gian \/ d\u1ecbch chuy\u1ec3n<\/li>\n\n\n\n<li>M\u00e3 m\u00e1y \/ \u0111\u1ea7u \/ v\u00f2i phun (n\u1ebfu c\u00f3 th\u1ec3)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 xu\u1ea5t nh\u1eadt k\u00fd sai l\u1ec7ch v\u1ecb tr\u00ed AOI, h\u00e3y l\u00e0m \u0111i\u1ec1u \u0111\u00f3. N\u1ebfu kh\u00f4ng th\u1ec3, h\u00e3y ch\u1ea1y m\u1ed9t v\u00f2ng ki\u1ec3m tra s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean ng\u1eafn v\u00e0 ghi ch\u00e9p th\u1ee7 c\u00f4ng 20 v\u1ecb tr\u00ed tr\u00ean to\u00e0n b\u1ea3ng m\u1ea1ch: c\u00e1c g\u00f3c, trung t\u00e2m, c\u00e1c linh ki\u1ec7n c\u00f3 kho\u1ea3ng c\u00e1ch ch\u00e2n nh\u1ecf v\u00e0 m\u1ed9t ho\u1eb7c hai linh ki\u1ec7n th\u1ee5 \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3, h\u00e3y \u0111\u1eb7t m\u1ed9t c\u00e2u h\u1ecfi:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1ed7i trung b\u00ecnh c\u00f3 kh\u00e1c kh\u00f4ng v\u00e0 \u1ed5n \u0111\u1ecbnh kh\u00f4ng?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu \u0111\u00fang, b\u1ea1n kh\u00f4ng \u0111ang s\u0103n ma. B\u1ea1n \u0111ang s\u0103n m\u1ed9t s\u1ef1 ch\u00eanh l\u1ec7ch.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/pickandplacemachine.com\/wp-admin\/post.php?post=2815&amp;action=edit\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System1.jpg\" alt=\"H\u1ec7 th\u1ed1ng ki\u1ec3m tra SMT\" class=\"wp-image-5603\" srcset=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System1.jpg 960w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System1-300x200.jpg 300w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System1-768x512.jpg 768w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System1-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-ugly-truth-about-it-s-just-rework-\">S\u1ef1 th\u1eadt ph\u0169 ph\u00e0ng v\u1ec1 \u201c\u0111\u00f3 ch\u1ec9 l\u00e0 vi\u1ec7c l\u00e0m l\u1ea1i\u201d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eeda ch\u1eefa l\u1ea1i kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t sai s\u1ed1 nh\u1ecf n\u1eefa. Lao \u0111\u1ed9ng l\u00e0 \u0111i\u1ec3m ngh\u1ebdn trong n\u0103m 2024.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPC \u0111\u00e3 b\u00e1o c\u00e1o r\u1eb1ng&nbsp;<strong>661 nh\u00e0 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n t\u1eed \u0111ang ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi chi ph\u00ed lao \u0111\u1ed9ng ng\u00e0y c\u00e0ng t\u0103ng.<\/strong>&nbsp;(v\u00e0 chi ph\u00ed nguy\u00ean v\u1eadt li\u1ec7u t\u0103ng 44%) trong khung th\u1eddi gian kh\u1ea3o s\u00e1t th\u00e1ng 2 n\u0103m 2024 c\u1ee7a h\u1ecd. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ti\u1ebfng \u1ed3n n\u1ec1n; \u0111\u00f3 l\u00e0 h\u00f3a \u0111\u01a1n b\u1ea1n ph\u1ea3i tr\u1ea3 m\u1ed7i khi ch\u1ea5p nh\u1eadn s\u1ef1 kh\u00f4ng \u0111\u1ed3ng b\u1ed9 l\u00e0 b\u00ecnh th\u01b0\u1eddng. Theo th\u00f4ng b\u00e1o ng\u00e0y 15\/2\/2024 c\u1ee7a IPC, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c thu th\u1eadp t\u1eeb cu\u1ed9c kh\u1ea3o s\u00e1t ti\u1ebfn h\u00e0nh t\u1eeb ng\u00e0y 15 \u0111\u1ebfn 31\/1\/2024.&nbsp;<a href=\"https:\/\/www.electronics.org\/news-release\/demand-remains-positive-among-electronics-manufacturers-labor-costs-index-highest\" target=\"_blank\" rel=\"noopener\">Ch\u1ec9 s\u1ed1 chi ph\u00ed lao \u0111\u1ed9ng IPC \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1<\/a>. (<a href=\"https:\/\/www.electronics.org\/news-release\/demand-remains-positive-among-electronics-manufacturers-labor-costs-index-highest\" target=\"_blank\" rel=\"noopener\">\u0111i\u1ec7n t\u1eed.org<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e2ng, l\u1ed7i l\u1ec7ch t\u00e2m l\u00e0 v\u1ea5n \u0111\u1ec1. Kh\u00f4ng ph\u1ea3i v\u00ec ch\u00fang l\u00e0 \u201cch\u1ea5t l\u01b0\u1ee3ng k\u00e9m\u201d. M\u00e0 v\u00ec ch\u00fang t\u1ed1n k\u00e9m, ch\u1eadm ch\u1ea1p v\u00e0 t\u00edch t\u1ee5 theo th\u1eddi gian.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"root-cause-triage-what-i-check-first\">X\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5: \u0110i\u1ec1u \u0111\u1ea7u ti\u00ean t\u00f4i ki\u1ec3m tra<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n quy tr\u00ecnh gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian, ch\u1ee9 kh\u00f4ng ph\u1ea3i quy tr\u00ecnh nghe c\u00f3 v\u1ebb hay trong t\u00e0i li\u1ec7u \u0111\u00e0o t\u1ea1o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-cad-centroid-library-origin-errors-the-silent-killer-\">1) L\u1ed7i t\u00e2m CAD \/ g\u1ed1c th\u01b0 vi\u1ec7n (k\u1ebb gi\u1ebft ng\u01b0\u1eddi th\u1ea7m l\u1eb7ng)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu d\u1eef li\u1ec7u CAD c\u1ee7a b\u1ea1n kh\u00f4ng ch\u00ednh x\u00e1c,&nbsp;<strong>M\u1ed7i l\u1ea7n hi\u1ec7u chu\u1ea9n b\u1ea1n th\u1ef1c hi\u1ec7n s\u1ebd \u201cs\u1eeda\u201d sai \u0111i\u1ec1u g\u00ec \u0111\u00f3.<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ea5u hi\u1ec7u ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ec9 c\u00f3 m\u1ed9t gia \u0111\u00ecnh footprint \u0111\u01b0\u1ee3c d\u1ecbch chuy\u1ec3n m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n (v\u00ed d\u1ee5: t\u1ea5t c\u1ea3 c\u00e1c SOT-23 \u0111\u1ec1u \u0111\u01b0\u1ee3c d\u1ecbch chuy\u1ec3n +0.10 mm theo tr\u1ee5c X).<\/li>\n\n\n\n<li>AOI hi\u1ec3n th\u1ecb c\u00f9ng m\u1ed9t vector tr\u00ean m\u1ecdi b\u1ea3ng m\u1ea1ch, b\u1ea5t k\u1ec3 v\u1ecb tr\u00ed c\u1ee7a b\u1ea3ng m\u1ea1ch.<\/li>\n\n\n\n<li>M\u00e1y \u201c\u0111\u1eb7t ch\u00ednh x\u00e1c\u201d so v\u1edbi h\u1ed9p th\u1ecb gi\u00e1c \u0111\u00e3 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n c\u1ee7a ch\u00ednh n\u00f3, nh\u01b0ng so v\u1edbi c\u00e1c mi\u1ebfng \u0111\u1ec7m th\u00ec n\u00f3 sai.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eeda l\u1ed7i: Ki\u1ec3m tra l\u1ea1i \u0111\u1ecbnh ngh\u0129a t\u00e2m v\u00e0 g\u00f3c xoay trong th\u01b0 vi\u1ec7n th\u00e0nh ph\u1ea7n. Ki\u1ec3m tra m\u1ed9t s\u1ed1 footprint. So s\u00e1nh v\u1edbi c\u00e1c gi\u1ea3 \u0111\u1ecbnh phong c\u00e1ch IPC-7351 n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng ch\u00fang. V\u00e0 \u0111\u00fang v\u1eady, t\u00f4i \u0111\u00e3 t\u1eebng th\u1ea5y m\u1ed9t quy \u01b0\u1edbc g\u00f3c xoay sai (0\u00b0 so v\u1edbi 90\u00b0) g\u00e2y ra s\u1ef1 c\u1ed1 s\u1ea3n xu\u1ea5t k\u00e9o d\u00e0i c\u1ea3 tu\u1ea7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-fiducial-alignment-issues-board-reality-vs-machine-belief-\">2) V\u1ea5n \u0111\u1ec1 c\u0103n ch\u1ec9nh tham chi\u1ebfu (th\u1ef1c t\u1ebf b\u1ea3ng m\u1ea1ch so v\u1edbi nh\u1eadn \u0111\u1ecbnh c\u1ee7a m\u00e1y)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m tham chi\u1ebfu c\u1ee5c b\u1ed9 cho \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao v\u00e0 ch\u00fang b\u1ecb b\u1ea9n, b\u1ecb che ph\u1ee7 m\u1ed9t ph\u1ea7n ho\u1eb7c c\u00f3 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n th\u1ea5p, h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c s\u1ebd \u201cnh\u1eadn di\u1ec7n\u201d \u0111\u01b0\u1ee3c th\u1ee9 g\u00ec \u0111\u00f3 \u2014 nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ee9 \u0111\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra nhanh: Ch\u1ea1y c\u00f9ng m\u1ed9t b\u1ea3ng hai l\u1ea7n, nh\u01b0ng bu\u1ed9c \u0111\u1ecdc l\u1ea1i \u0111i\u1ec3m tham chi\u1ebfu v\u00e0 ghi l\u1ea1i bi\u1ebfn \u0111\u1ed5i b\u1ea3ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n. N\u1ebfu bi\u1ebfn \u0111\u1ed5i nh\u1ea3y, b\u1ea1n \u0111\u00e3 t\u00ecm ra nguy\u00ean nh\u00e2n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eeda l\u1ed7i: C\u1ea3i thi\u1ec7n thi\u1ebft k\u1ebf \u0111i\u1ec3m tham chi\u1ebfu (k\u00edch th\u01b0\u1edbc, kho\u1ea3ng c\u00e1ch l\u1edbp ph\u1ee7 h\u00e0n), l\u00e0m s\u1ea1ch b\u1ea3ng m\u1ea1ch, \u0111i\u1ec1u ch\u1ec9nh \u00e1nh s\u00e1ng v\u00e0 \u0111\u1ea3m b\u1ea3o camera c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y c\u1ea1nh s\u1eafc n\u00e9t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-nozzle-offset-calibration-the-i-swear-we-did-it-last-month-problem-\">3) C\u00e2n ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch v\u00f2i phun (v\u1ea5n \u0111\u1ec1 \u201cT\u00f4i th\u1ec1 l\u00e0 ch\u00fang ta \u0111\u00e3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3 v\u00e0o th\u00e1ng tr\u01b0\u1edbc\u201d)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 l\u1ec7ch c\u1ee7a v\u00f2i phun. \u0110\u1ea7u v\u00f2i phun b\u1ecb m\u00f2n. Tr\u1ee5c b\u1ecb u\u1ed1n cong vi m\u00f4. V\u00e0 \u0111i\u1ec1u t\u1ed3i t\u1ec7 nh\u1ea5t? B\u1ea1n s\u1ebd kh\u00f4ng nh\u1eadn ra cho \u0111\u1ebfn khi \u0111\u1eb7t m\u1ed9t h\u1ed7n h\u1ee3p c\u00e1c linh ki\u1ec7n 01005, 0402 v\u00e0 QFN c\u00f3 kho\u1ea3ng c\u00e1ch ch\u00e2n 0,4 mm c\u1ea1nh nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu s\u1ef1 sai l\u1ec7ch theo d\u00f5i ID v\u00f2i phun ho\u1eb7c \u0111\u1ea7u v\u00f2i phun, h\u00e3y hi\u1ec7u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch c\u1ee7a v\u00f2i phun v\u00e0 x\u00e1c minh b\u1eb1ng m\u1eabu th\u1eed \u0111\u1eb7t v\u1ecb tr\u00ed \u0111\u00e3 bi\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang v\u1eadn h\u00e0nh m\u1ed9t d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u1edbi t\u1ea7n su\u1ea5t thay \u0111\u1ed5i cao, h\u00e3y t\u00edch h\u1ee3p \u0111i\u1ec1u n\u00e0y v\u00e0o quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1eebng coi \u0111\u00f3 l\u00e0 t\u00f9y ch\u1ecdn. N\u1ebfu b\u1ea1n c\u1ea7n m\u1ed9t k\u1ebf ho\u1ea1ch h\u1ed7 tr\u1ee3 c\u00f3 c\u1ea5u tr\u00fac ph\u00f9 h\u1ee3p v\u1edbi nh\u1ecbp \u0111\u1ed9 \u0111\u00f3, \u0111\u00e2y ch\u00ednh x\u00e1c l\u00e0 \u0111i\u1ec1u b\u1ea1n c\u1ea7n.&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/training-after-sales-support\/\">\u0110\u00e0o t\u1ea1o v\u00e0 h\u1ed7 tr\u1ee3 sau b\u00e1n h\u00e0ng<\/a>&nbsp;\u0111\u01b0\u1ee3c cho l\u00e0 ph\u1ea3i bao ph\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-vision-system-alignment-drift-stop-trusting-factory-defaults-\">4) S\u1ef1 l\u1ec7ch l\u1ea1c trong vi\u1ec7c c\u0103n ch\u1ec9nh h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c (ng\u1eebng tin t\u01b0\u1edfng v\u00e0o \u201cc\u00e0i \u0111\u1eb7t m\u1eb7c \u0111\u1ecbnh c\u1ee7a nh\u00e0 m\u00e1y\u201d)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fac t\u00f4i tr\u1edf n\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u v\u1ea5n \u0111\u1ec1 v\u1ec1 th\u1ecb l\u1ef1c th\u1ef1c ra l\u00e0...&nbsp;<strong>V\u1ea5n \u0111\u1ec1 \u0111o l\u01b0\u1eddng<\/strong>. Nh\u00e0 cung c\u1ea5p th\u00edch nh\u1eefng tuy\u00ean b\u1ed1 v\u1ec1 hi\u1ec7u su\u1ea5t kh\u00f4ng ti\u00eau chu\u1ea9n. Ng\u01b0\u1eddi d\u00f9ng th\u00edch tin v\u00e0o nh\u1eefng tuy\u00ean b\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NIST \u0111\u00e3 t\u00edch c\u1ef1c th\u00fac \u0111\u1ea9y c\u00f4ng t\u00e1c ti\u00eau chu\u1ea9n h\u00f3a v\u00ec c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng m\u00f4 t\u1ea3 hi\u1ec7u su\u1ea5t c\u1ea3m bi\u1ebfn theo c\u00e1c c\u00e1ch kh\u00f4ng nh\u1ea5t qu\u00e1n, v\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 t\u1ef1 ki\u1ec3m ch\u1ee9ng \u0111i\u1ec1u \u0111\u00f3. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 l\u00fd thuy\u1ebft; \u0111\u00f3 ch\u00ednh l\u00e0 \u0111\u1ed9ng l\u1ef1c \u0111\u1eb1ng sau c\u00f4ng t\u00e1c xu\u1ea5t b\u1ea3n ti\u00eau chu\u1ea9n v\u00e0 ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t cho h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh 3D c\u1ee7a h\u1ecd v\u00e0o n\u0103m 2024.&nbsp;<a href=\"https:\/\/www.nist.gov\/publications\/towards-development-standards-and-performance-metrics-3d-imaging-systems\" target=\"_blank\" rel=\"noopener\">C\u00f4ng b\u1ed1 ti\u00eau chu\u1ea9n\/ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t c\u1ee7a NIST<\/a>. (<a href=\"https:\/\/www.nist.gov\/publications\/towards-development-standards-and-performance-metrics-3d-imaging-systems?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7n Ti\u00eau chu\u1ea9n v\u00e0 C\u00f4ng ngh\u1ec7 Qu\u1ed1c gia (NIST)<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu h\u1ec7 th\u1ed1ng camera c\u1ee7a b\u1ea1n kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m tra, hi\u1ec7u chu\u1ea9n v\u00e0 x\u00e1c nh\u1eadn, b\u1ea1n c\u00f3 th\u1ec3 \u0111ang \u201c\u0111i\u1ec1u ch\u1ec9nh\u201d m\u1ed9t th\u01b0\u1edbc \u0111o b\u1ecb l\u1ec7ch.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/pickandplacemachine.com\/wp-admin\/post.php?post=2832&amp;action=edit\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System2.jpg\" alt=\"H\u1ec7 th\u1ed1ng ki\u1ec3m tra SMT\" class=\"wp-image-5604\" srcset=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System2.jpg 960w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System2-300x200.jpg 300w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System2-768x512.jpg 768w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System2-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"a-practical-offset-error-diagnosis-table\">B\u1ea3ng ch\u1ea9n \u0111o\u00e1n l\u1ed7i b\u00f9 tr\u1eeb th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng \u0111i\u1ec1u n\u00e0y nh\u01b0 m\u1ed9t s\u01a1 \u0111\u1ed3 quy\u1ebft \u0111\u1ecbnh m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 giao cho ng\u01b0\u1eddi qu\u1ea3n l\u00fd ca l\u00e0m vi\u1ec7c m\u1ec7t m\u1ecfi.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tri\u1ec7u ch\u1ee9ng b\u1ea1n quan s\u00e1t \u0111\u01b0\u1ee3c trong AOI \/ k\u00ednh hi\u1ec3n vi<\/th><th>Ki\u1ec3m tra nhanh (5\u201310 ph\u00fat)<\/th><th>Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3<\/th><th>S\u1eeda l\u1ed7i th\u1ef1c s\u1ef1 hi\u1ec7u qu\u1ea3<\/th><\/tr><\/thead><tbody><tr><td>C\u00f9ng m\u1ed9t s\u1ef1 d\u1ecbch chuy\u1ec3n X\/Y&nbsp;<strong>t\u1ea5t c\u1ea3<\/strong>&nbsp;c\u00e1c th\u00e0nh ph\u1ea7n<\/td><td>So s\u00e1nh nh\u1eadt k\u00fd bi\u1ebfn \u0111\u1ed5i b\u1ea3ng gi\u1eefa c\u00e1c l\u1ea7n ch\u1ea1y<\/td><td>L\u1ed7i bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec3m chu\u1ea9n \/ \u0111i\u1ec3m tham chi\u1ebfu<\/td><td>H\u01b0\u1edbng d\u1eabn l\u1ea1i c\u00e1c \u0111i\u1ec3m tham chi\u1ebfu, c\u1ea3i thi\u1ec7n vi\u1ec7c nh\u1eadn di\u1ec7n \u0111i\u1ec3m tham chi\u1ebfu, x\u00e1c minh tham chi\u1ebfu b\u0103ng t\u1ea3i.<\/td><\/tr><tr><td>Ch\u1ec9 c\u00f3 m\u1ed9t nh\u00f3m g\u00f3i ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c di chuy\u1ec3n.<\/td><td>So s\u00e1nh t\u00e2m CAD v\u1edbi t\u00e2m pad cho footprint \u0111\u00f3<\/td><td>L\u1ed7i t\u00e2m \u0111i\u1ec3m\/xoay c\u1ee7a th\u01b0 vi\u1ec7n<\/td><td>S\u1eeda ch\u1eefa th\u01b0 vi\u1ec7n CAD; kh\u00f4ng n\u00ean \u201c\u0111i\u1ec1u ch\u1ec9nh xung quanh\u201d d\u1eef li\u1ec7u x\u1ea5u.<\/td><\/tr><tr><td>L\u1ed7i x\u1ea3y ra sau ID v\u00f2i phun\/\u0111\u1ea7u phun.<\/td><td>Thay \u0111\u1ed5i v\u00f2i phun, ch\u1ea1y l\u1ea1i c\u00f9ng v\u1ecb tr\u00ed.<\/td><td>\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch v\u00f2i phun \/ v\u00f2i phun b\u1ecb cong<\/td><td>Th\u1ef1c hi\u1ec7n hi\u1ec7u chu\u1ea9n \u0111\u1ed9 l\u1ec7ch v\u00f2i phun; thay th\u1ebf c\u00e1c v\u00f2i phun b\u1ecb m\u00f2n.<\/td><\/tr><tr><td>L\u1ed7i ng\u00e0y c\u00e0ng nghi\u00eam tr\u1ecdng h\u01a1n tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/td><td>So s\u00e1nh g\u00f3c v\u1edbi trung t\u00e2m<\/td><td>\u0110\u1ed9 cong c\u1ee7a t\u1ea5m v\u00e1n, \u00e1p l\u1ef1c k\u1eb9p, gi\u00e1 \u0111\u1ee1 t\u1ea5m v\u00e1n<\/td><td>Th\u00eam c\u00e1c ch\u1ed1t h\u1ed7 tr\u1ee3, gi\u1ea3m bi\u1ebfn d\u1ea1ng c\u1ee7a k\u1eb9p, ki\u1ec3m tra c\u00f4ng c\u1ee5 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/td><\/tr><tr><td>C\u00e1c linh ki\u1ec7n c\u00f3 kho\u1ea3ng c\u00e1ch ch\u00e2n nh\u1ecf h\u01a1n c\u00e1c linh ki\u1ec7n th\u1ee5 \u0111\u1ed9ng.<\/td><td>Ki\u1ec3m tra \u00e1nh s\u00e1ng\/ng\u01b0\u1ee1ng v\u00e0 c\u1eeda s\u1ed5 t\u00ecm ki\u1ebfm<\/td><td>\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 n\u00e9t \/ ch\u00f3i s\u00e1ng \/ \u0111i\u1ec3m tham chi\u1ebfu k\u00e9m<\/td><td>\u0110i\u1ec1u ch\u1ec9nh \u00e1nh s\u00e1ng, ng\u01b0\u1ee1ng, thi\u1ebft k\u1ebf \u0111i\u1ec3m tham chi\u1ebfu; x\u00e1c minh s\u1ef1 c\u0103n ch\u1ec9nh c\u1ee7a camera.<\/td><\/tr><tr><td>Ph\u00e2n t\u00e1n ng\u1eabu nhi\u00ean v\u1edbi nh\u1eefng l\u1ea7n tr\u01b0\u1ee3t l\u1edbn th\u1ec9nh tho\u1ea3ng<\/td><td>Ki\u1ec3m tra \u00e1p su\u1ea5t ch\u00e2n kh\u00f4ng, \u0111\u1ed9 cao c\u1ee7a b\u1ed9 ph\u1eadn h\u00fat, t\u00ecnh tr\u1ea1ng c\u1ee7a b\u1ed9 c\u1ea5p li\u1ec7u.<\/td><td>S\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u1ee7a b\u1ed9 thu \/ V\u1ea5n \u0111\u1ec1 v\u1ec1 g\u00f3c nghi\u00eang c\u1ee7a b\u1ed9 c\u1ea5p li\u1ec7u<\/td><td>D\u00e2y c\u1ea5p ngu\u1ed3n, ki\u1ec3m tra ch\u00e2n kh\u00f4ng, ki\u1ec3m tra \u0111\u1ed9 cao tr\u1ee5c Z v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 thu gom.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n mu\u1ed1n m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c ho\u00e0n ch\u1ec9nh h\u01a1n ph\u00f9 h\u1ee3p v\u1edbi ch\u1ebf \u0111\u1ed9 s\u1ea3n xu\u1ea5t c\u1ee7a m\u00ecnh (m\u1eabu th\u1eed nghi\u1ec7m so v\u1edbi s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t), b\u1ea1n s\u1ebd thi\u1ebft k\u1ebf n\u00f3 theo c\u00e1ch kh\u00e1c. A&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/prototype-small-batch-lines\/\">D\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p SMT m\u1eabu th\u1eed v\u00e0 s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng nh\u1ecf<\/a>&nbsp;c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng \u0111\u01b0\u1ee3c vi\u1ec7c ki\u1ec3m tra th\u1ee7 c\u00f4ng nhi\u1ec1u h\u01a1n; a&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/high-speed-mass-production-lines\/\">D\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t t\u1ed1c \u0111\u1ed9 cao<\/a>&nbsp;C\u1ea7n c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t nghi\u00eam ng\u1eb7t, ghi ch\u00e9p v\u00e0 k\u1ef7 lu\u1eadt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"correction-steps-that-don-t-waste-your-week\">C\u00e1c b\u01b0\u1edbc s\u1eeda l\u1ed7i kh\u00f4ng l\u00e0m l\u00e3ng ph\u00ed th\u1eddi gian c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f4i s\u1ebd gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng b\u1ea1n mu\u1ed1n m\u1ed9t gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 duy tr\u00ec sau khi ca l\u00e0m vi\u1ec7c ti\u1ebfp theo b\u1eaft \u0111\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"step-a-prove-whether-it-s-global-or-component-class\">B\u01b0\u1edbc A: X\u00e1c \u0111\u1ecbnh xem n\u00f3 l\u00e0 to\u00e0n c\u1ee5c hay thu\u1ed9c l\u1edbp th\u00e0nh ph\u1ea7n.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y l\u00e0m \u0111i\u1ec1u n\u00e0y tr\u01b0\u1edbc ti\u00ean. Lu\u00f4n lu\u00f4n.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ecdn 10 v\u1ecb tr\u00ed tr\u00ean to\u00e0n b\u1ed9 b\u1ea3ng.<\/li>\n\n\n\n<li>G\u1ed3m \u00edt nh\u1ea5t: 1 BGA\/QFN, 2 IC c\u00f3 kho\u1ea3ng c\u00e1ch ch\u00e2n nh\u1ecf, 4 linh ki\u1ec7n th\u1ee5 \u0111\u1ed9ng, 1 \u0111\u1ea7u n\u1ed1i.<\/li>\n\n\n\n<li>Ghi l\u1ea1i vect\u01a1 v\u00e0 g\u00f3c quay.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u00e1c vector t\u01b0\u01a1ng t\u1ef1 nhau, h\u00e3y xem x\u00e9t ch\u00fang nh\u01b0 l\u00e0 to\u00e0n c\u1ee5c. N\u1ebfu c\u00e1c vector \u0111\u01b0\u1ee3c chia theo g\u00f3i, h\u00e3y xem x\u00e9t ch\u00fang nh\u01b0 l\u00e0 d\u1ef1a tr\u00ean l\u1edbp.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"step-b-reconcile-coordinate-systems-cad-machine-aoi-\">B\u01b0\u1edbc B: \u0110\u1ed3ng b\u1ed9 h\u00f3a h\u1ec7 t\u1ecda \u0111\u1ed9 (CAD \u2192 m\u00e1y \u2192 AOI)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fac ng\u01b0\u1eddi l\u1edbn b\u1eaft \u0111\u1ea7u \u0111\u1ed5 l\u1ed7i cho nhau.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ecbnh ngh\u0129a t\u00e2m CAD (\u0111i\u1ec3m g\u1ed1c, g\u00f3c xoay)<\/li>\n\n\n\n<li>Th\u01b0 vi\u1ec7n m\u00e1y (m\u00f4 h\u00ecnh g\u00f3i, m\u1eabu h\u00ecnh \u1ea3nh)<\/li>\n\n\n\n<li>Bi\u1ebfn \u0111\u1ed5i tham chi\u1ebfu (to\u00e0n c\u1ee5c + c\u1ee5c b\u1ed9)<\/li>\n\n\n\n<li>Tham chi\u1ebfu AOI (AOI s\u1eed d\u1ee5ng g\u00ec l\u00e0m \u201cti\u00eau chu\u1ea9n tham chi\u1ebfu\u201d?)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n kh\u00f4ng c\u0103n ch\u1ec9nh c\u00e1c l\u1edbp n\u00e0y, b\u1ea1n s\u1ebd ti\u1ebfp t\u1ee5c \u201cs\u1eeda ch\u1eefa\u201d l\u1edbp sai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"step-c-calibrate-what-moves-not-what-s-convenient\">B\u01b0\u1edbc C: \u0110i\u1ec1u ch\u1ec9nh nh\u1eefng g\u00ec di chuy\u1ec3n, kh\u00f4ng ph\u1ea3i nh\u1eefng g\u00ec ti\u1ec7n l\u1ee3i.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu l\u1ed7i xu\u1ea5t ph\u00e1t t\u1eeb v\u00f2i phun\/\u0111\u1ea7u phun: hi\u1ec7u ch\u1ec9nh v\u00f2i phun. N\u1ebfu l\u1ed7i xu\u1ea5t ph\u00e1t t\u1eeb v\u1ecb tr\u00ed b\u1ea3ng m\u1ea1ch: ki\u1ec3m tra h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng, k\u1eb9p, gi\u00e1 \u0111\u1ee1 b\u1ea3ng m\u1ea1ch. N\u1ebfu l\u1ed7i xu\u1ea5t ph\u00e1t t\u1eeb d\u1ea5u ch\u00e2n: s\u1eeda ch\u1eefa th\u01b0 vi\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e0 \u0111\u00fang v\u1eady, b\u1ea1n n\u00ean ghi ch\u00e9p l\u1ea1i \u0111i\u1ec1u n\u00e0y. \u0110\u1eb7t n\u00f3 d\u01b0\u1edbi t\u00ean c\u1ee7a b\u1ea1n.&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/service-promise\/\">Cam k\u1ebft d\u1ecbch v\u1ee5<\/a>&nbsp;\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c gi\u1ea3i ph\u00e1p kh\u00f4ng b\u1ecb m\u1ea5t \u0111i ngay l\u1eadp t\u1ee9c khi m\u1ed9t nh\u00e0 \u0111i\u1ec1u h\u00e0nh m\u1edbi ti\u1ebfp qu\u1ea3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"step-d-validate-with-a-golden-board-and-a-short-run\">B\u01b0\u1edbc D: Ki\u1ec3m tra b\u1eb1ng \u201cb\u1ea3ng chu\u1ea9n\u201d v\u00e0 ch\u1ea1y th\u1eed nghi\u1ec7m ng\u1eafn.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t t\u1ea5m b\u1ea3ng kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 x\u00e1c nh\u1eadn. \u0110\u00f3 l\u00e0 hy v\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ea1y 10 b\u1ea3ng m\u1ea1ch. L\u1ea5y s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea sai l\u1ec7ch AOI. X\u00e1c nh\u1eadn r\u1eb1ng sai s\u1ed1 trung b\u00ecnh \u0111\u00e3 gi\u1ea3m v\u1ec1 g\u1ea7n 0 v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n kh\u00f4ng t\u0103ng \u0111\u1ed9t bi\u1ebfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n ch\u1ec9 kh\u1eafc ph\u1ee5c gi\u00e1 tr\u1ecb trung b\u00ecnh nh\u01b0ng l\u00e0m t\u0103ng \u0111\u1ed9 l\u1ec7ch, b\u1ea1n kh\u00f4ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c quy tr\u00ecnh\u2014b\u1ea1n ch\u1ec9 chuy\u1ec3n d\u1ecbch v\u1ea5n \u0111\u1ec1 sang n\u01a1i kh\u00e1c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/pickandplacemachine.com\/wp-admin\/post.php?post=2845&amp;action=edit\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System3.jpg\" alt=\"H\u1ec7 th\u1ed1ng ki\u1ec3m tra SMT\" class=\"wp-image-5605\" srcset=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System3.jpg 960w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System3-300x200.jpg 300w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System3-768x512.jpg 768w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/02\/SMT-Inspection-System3-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"why-this-turns-into-recalls-when-you-ignore-it\">T\u1ea1i sao vi\u1ec7c n\u00e0y l\u1ea1i d\u1eabn \u0111\u1ebfn vi\u1ec7c thu h\u1ed3i s\u1ea3n ph\u1ea9m khi b\u1ea1n ph\u1edbt l\u1edd n\u00f3?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng ng\u01b0\u1eddi l\u00e0m vi\u1ec7c trong l\u0129nh v\u1ef1c SMT th\u01b0\u1eddng hay gi\u1ea3 v\u1edd r\u1eb1ng c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee7a h\u1ecd ch\u1ec9 d\u1eebng l\u1ea1i \u1edf l\u00f2 h\u00e0n ch\u1ea3y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ecd kh\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u00f4ng b\u00e1o thu h\u1ed3i c\u1ee7a CPSC l\u00e0 l\u1eddi nh\u1eafc nh\u1edf r\u1eb1ng s\u1ef1 c\u1ed1 \u0111i\u1ec7n t\u1eed c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n. V\u00ed d\u1ee5, th\u00f4ng b\u00e1o thu h\u1ed3i ng\u00e0y 16 th\u00e1ng 3 n\u0103m 2023 c\u1ee7a CPSC v\u1ec1 tr\u1ea1m s\u1ea1c STIHL iMOW m\u00f4 t\u1ea3 m\u1ed9t v\u1ea5n \u0111\u1ec1 ch\u1eadp m\u1ea1ch tr\u00ean b\u1ea3ng m\u1ea1ch in, g\u00e2y ra nguy c\u01a1 ch\u00e1y n\u1ed5, v\u1edbi c\u00e1c s\u1ef1 c\u1ed1 bao g\u1ed3m b\u00e1o c\u00e1o v\u1ec1 qu\u00e1 nhi\u1ec7t v\u00e0 ch\u00e1y.&nbsp;<a href=\"https:\/\/www.cpsc.gov\/Recalls\/2023\/STIHL-Incorporated-Recalls-Docking-Stations-Sold-with-STIHL-iMOW-Robotic-Lawn-Mowers-Due-to-Fire-Hazard\" target=\"_blank\" rel=\"noopener\">CPSC thu h\u1ed3i tr\u1ea1m s\u1ea1c STIHL<\/a>. (<a href=\"https:\/\/www.cpsc.gov\/Recalls\/2023\/STIHL-Incorporated-Recalls-Docking-Stations-Sold-with-STIHL-iMOW-Robotic-Lawn-Mowers-Due-to-Fire-Hazard\" target=\"_blank\" rel=\"noopener\">C\u01a1 quan An to\u00e0n S\u1ea3n ph\u1ea9m Ti\u00eau d\u00f9ng Hoa K\u1ef3<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f4i c\u00f3 n\u00f3i r\u1eb1ng m\u1ed9t sai l\u1ec7ch v\u1ecb tr\u00ed 0,10 mm s\u1ebd t\u1ef1 \u0111\u1ed9ng g\u00e2y ra ch\u00e1y kh\u00f4ng? Kh\u00f4ng. \u0110\u1eebng qu\u00e1 lo l\u1eafng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f4i \u0111ang n\u00f3i r\u1eb1ng s\u1ef1 c\u1ea9u th\u1ea3 trong c\u00e1c quy tr\u00ecnh nh\u1ecf c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh r\u1ee7i ro h\u1ec7 th\u1ed1ng m\u1ed9t khi s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u01b0a ra th\u1ecb tr\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e0 r\u1ee7i ro ph\u00e1p l\u00fd c\u0169ng kh\u00f4ng ph\u1ea3i l\u00e0 l\u00fd thuy\u1ebft. Quy\u1ebft \u0111\u1ecbnh v\u00e0 L\u1ec7nh c\u1ee7a CPSC trong&nbsp;<em>V\u1ee5 vi\u1ec7c li\u00ean quan \u0111\u1ebfn Amazon.com, Inc.<\/em>&nbsp;Gi\u1ea3i th\u00edch c\u00e1ch \u1ee6y ban x\u1eed l\u00fd c\u00e1c ngh\u0129a v\u1ee5 ph\u00e2n ph\u1ed1i v\u00e0 b\u1ed3i th\u01b0\u1eddng khi s\u1ea3n ph\u1ea9m nguy hi\u1ec3m \u0111\u1ebfn tay ng\u01b0\u1eddi ti\u00eau d\u00f9ng. \u0110i\u1ec1u n\u00e0y kh\u00f4ng c\u1ee5 th\u1ec3 cho SMT, nh\u01b0ng \u0111\u00f3 l\u00e0 c\u00e2u chuy\u1ec7n tr\u00e1ch nhi\u1ec7m t\u01b0\u01a1ng t\u1ef1: n\u1ebfu l\u1ed7i s\u1ea3n ph\u1ea9m kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n, ai \u0111\u00f3 ph\u1ea3i ch\u1ecbu tr\u00e1ch nhi\u1ec7m.&nbsp;<a href=\"https:\/\/www.cpsc.gov\/s3fs-public\/pdfs\/recall\/lawsuits\/abc\/142%20-%20In%20the%20Matter%20of%20Amazon.com%20Inc.%20Decision%20and%20Order.pdf\" target=\"_blank\" rel=\"noopener\">Quy\u1ebft \u0111\u1ecbnh v\u00e0 L\u1ec7nh c\u1ee7a CPSC v\u1ec1 Amazon (PDF)<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faqs\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-a-component-offset-error-in-smt-pick-and-place-\">L\u1ed7i l\u1ec7ch v\u1ecb tr\u00ed linh ki\u1ec7n trong qu\u00e1 tr\u00ecnh \u0111\u1eb7t linh ki\u1ec7n b\u1eb1ng m\u00e1y SMT l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ed7i l\u1ec7ch v\u1ecb tr\u00ed th\u00e0nh ph\u1ea7n l\u00e0 s\u1ef1 sai l\u1ec7ch v\u1ecb tr\u00ed l\u1eb7p l\u1ea1i, trong \u0111\u00f3 m\u00e1y m\u00f3c li\u00ean t\u1ee5c \u0111\u1eb7t m\u1ed9t b\u1ed9 ph\u1eadn l\u1ec7ch kh\u1ecfi t\u00e2m pad d\u1ef1 \u0111\u1ecbnh theo m\u1ed9t vect\u01a1 X\/Y c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng (v\u00e0 \u0111\u00f4i khi k\u00e8m theo xoay), th\u01b0\u1eddng do s\u1ef1 kh\u00f4ng kh\u1edbp t\u1ecda \u0111\u1ed9 gi\u1eefa d\u1eef li\u1ec7u CAD\/th\u01b0 vi\u1ec7n, bi\u1ebfn \u0111\u1ed5i tham chi\u1ebfu ho\u1eb7c hi\u1ec7u chu\u1ea9n v\u00f2i phun\/h\u1ec7 th\u1ed1ng quan s\u00e1t, ch\u1ee9 kh\u00f4ng ph\u1ea3i do ti\u1ebfng \u1ed3n c\u01a1 h\u1ecdc ng\u1eabu nhi\u00ean. N\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c vect\u01a1, b\u1ea1n c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c n\u00f3. \u0110\u1eebng tranh lu\u1eadn v\u1ec1 \u201c\u0111\u1ed9 ch\u00ednh x\u00e1c\u201d cho \u0111\u1ebfn khi b\u1ea1n t\u00e1ch bi\u1ec7t \u0111\u01b0\u1ee3c s\u1ef1 d\u1ecbch chuy\u1ec3n trung b\u00ecnh kh\u1ecfi s\u1ef1 ph\u00e2n t\u00e1n ng\u1eabu nhi\u00ean.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-do-you-detect-and-correct-component-offset-errors-before-reflow-\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i l\u1ec7ch v\u1ecb tr\u00ed linh ki\u1ec7n tr\u01b0\u1edbc khi h\u00e0n ch\u1ea3y?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i l\u1ec7ch v\u1ecb tr\u00ed linh ki\u1ec7n bao g\u1ed3m vi\u1ec7c thu th\u1eadp c\u00e1c sai l\u1ec7ch v\u1ecb tr\u00ed \u0111o \u0111\u01b0\u1ee3c (X, Y, theta) t\u1eeb ki\u1ec3m tra AOI ho\u1eb7c ki\u1ec3m tra s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean, x\u00e1c \u0111\u1ecbnh xem l\u1ed7i l\u00e0 to\u00e0n c\u1ee5c hay li\u00ean quan \u0111\u1ebfn l\u1edbp linh ki\u1ec7n\/v\u00f2i phun, sau \u0111\u00f3 \u0111i\u1ec1u ch\u1ec9nh l\u1edbp ch\u1ecbu tr\u00e1ch nhi\u1ec7m\u2014bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec3m tham chi\u1ebfu, t\u00e2m CAD\/ngu\u1ed3n g\u1ed1c th\u01b0 vi\u1ec7n, c\u0103n ch\u1ec9nh h\u00ecnh \u1ea3nh ho\u1eb7c hi\u1ec7u chu\u1ea9n l\u1ec7ch v\u00f2i phun\u2014v\u00e0 ti\u1ebfn h\u00e0nh ki\u1ec3m tra x\u00e1c nh\u1eadn tr\u00ean m\u1ed9t l\u00f4 s\u1ea3n ph\u1ea9m nh\u1ecf. \u0110\u1eebng b\u1ecf qua b\u01b0\u1edbc ki\u1ec3m tra x\u00e1c nh\u1eadn. M\u1ed9t b\u1ea3ng m\u1ea1ch c\u00f3 th\u1ec3 sai, nh\u01b0ng m\u01b0\u1eddi b\u1ea3ng m\u1ea1ch s\u1ebd cho k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-causes-pick-and-place-misalignment-that-looks-the-same-on-every-board-\">Nguy\u00ean nh\u00e2n g\u00e2y ra s\u1ef1 sai l\u1ec7ch v\u1ecb tr\u00ed \u0111\u1eb7t linh ki\u1ec7n tr\u00ean m\u1ed7i bo m\u1ea1ch l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 sai l\u1ec7ch v\u1ecb tr\u00ed \u0111\u1eb7t linh ki\u1ec7n l\u1eb7p l\u1ea1i theo c\u00f9ng m\u1ed9t h\u01b0\u1edbng v\u00e0 k\u00edch th\u01b0\u1edbc tr\u00ean c\u00e1c b\u1ea3ng m\u1ea1ch th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb v\u1ea5n \u0111\u1ec1 tham chi\u1ebfu kh\u00f4ng nh\u1ea5t qu\u00e1n: \u0111i\u1ec3m g\u1ed1c b\u1ea3ng m\u1ea1ch sai, vi\u1ec7c b\u1eaft t\u00edn hi\u1ec7u tham chi\u1ebfu kh\u00f4ng \u1ed5n \u0111\u1ecbnh, \u0111i\u1ec3m g\u1ed1c b\u1ea3ng m\u1ea1ch sai, ho\u1eb7c s\u1ef1 kh\u00f4ng kh\u1edbp h\u1ec7 th\u1ed1ng gi\u1eefa t\u00e2m CAD\/th\u01b0 vi\u1ec7n v\u00e0 t\u00e2m th\u1ef1c t\u1ebf, bu\u1ed9c m\u00e1y ph\u1ea3i \u0111\u1eb7t linh ki\u1ec7n \u201cho\u00e0n h\u1ea3o\u201d trong khung t\u1ecda \u0111\u1ed9 sai. Ki\u1ec3m tra c\u00e1c ph\u00e9p bi\u1ebfn \u0111\u1ed5i tr\u01b0\u1edbc ti\u00ean. Sau \u0111\u00f3 ki\u1ec3m tra d\u1eef li\u1ec7u th\u01b0 vi\u1ec7n. Vi\u1ec7c hi\u1ec7u chu\u1ea9n v\u00f2i phun kh\u00f4ng th\u1ec3 kh\u1eafc ph\u1ee5c t\u00e2m sai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-do-fiducial-alignment-issues-create-pcb-component-placement-error-\">L\u00e0m th\u1ebf n\u00e0o c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u0103n ch\u1ec9nh fiducial g\u00e2y ra l\u1ed7i \u0111\u1eb7t linh ki\u1ec7n tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB)?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ea5n \u0111\u1ec1 c\u0103n ch\u1ec9nh \u0111i\u1ec3m tham chi\u1ebfu (fiducial) g\u00e2y ra l\u1ed7i \u0111\u1eb7t linh ki\u1ec7n tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB) b\u1eb1ng c\u00e1ch l\u00e0m sai l\u1ec7ch ph\u00e9p bi\u1ebfn \u0111\u1ed5i b\u1ea3ng m\u1ea1ch \u0111\u00e3 t\u00ednh to\u00e1n (d\u1ecbch chuy\u1ec3n, xoay, \u0111\u00f4i khi thu ph\u00f3ng) khi h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c ph\u00e1t hi\u1ec7n sai v\u1ecb tr\u00ed trung t\u00e2m c\u1ee7a \u0111i\u1ec3m tham chi\u1ebfu do \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n th\u1ea5p, \u00f4 nhi\u1ec5m, l\u1edbp ph\u1ee7 h\u00e0n x\u00e2m l\u1ea5n, ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng ho\u1eb7c c\u1eeda s\u1ed5 t\u00ecm ki\u1ebfm kh\u00f4ng ch\u00ednh x\u00e1c, t\u1eeb \u0111\u00f3 l\u00e0m d\u1ecbch chuy\u1ec3n m\u1ecdi v\u1ecb tr\u00ed \u0111\u1eb7t linh ki\u1ec7n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb ph\u00e9p bi\u1ebfn \u0111\u1ed5i \u0111\u00f3. V\u1ec7 sinh c\u00e1c \u0111i\u1ec3m tham chi\u1ebfu v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng th\u1ee9c th\u1ecb gi\u00e1c. \u0110\u1ed3ng th\u1eddi ki\u1ec3m tra c\u00e1c quy t\u1eafc thi\u1ebft k\u1ebf \u0111i\u1ec3m tham chi\u1ebfu tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"when-should-you-run-nozzle-offset-calibration-\">Khi n\u00e0o n\u00ean th\u1ef1c hi\u1ec7n hi\u1ec7u chu\u1ea9n \u0111\u1ed9 l\u1ec7ch v\u00f2i phun?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch v\u00f2i phun l\u00e0 qu\u00e1 tr\u00ecnh \u0111o l\u01b0\u1eddng v\u00e0 c\u1eadp nh\u1eadt \u0111\u01b0\u1eddng t\u00e2m th\u1ef1c t\u1ebf c\u1ee7a v\u1ecb tr\u00ed l\u1ea5y\/\u0111\u1eb7t c\u1ee7a t\u1eebng v\u00f2i phun (v\u00e0 th\u01b0\u1eddng l\u00e0 t\u1eebng \u0111\u1ea7u phun) \u0111\u1ec3 v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c m\u00e1y \u0111i\u1ec1u khi\u1ec3n kh\u1edbp v\u1edbi v\u1ecb tr\u00ed th\u1ef1c t\u1ebf m\u00e0 linh ki\u1ec7n r\u01a1i xu\u1ed1ng. Qu\u00e1 tr\u00ecnh n\u00e0y n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n sau khi thay th\u1ebf v\u00f2i phun, b\u1ea3o tr\u00ec \u0111\u1ea7u phun, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch li\u00ean quan \u0111\u1ebfn v\u00f2i phun nhi\u1ec1u l\u1ea7n trong AOI, ho\u1eb7c b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00ecnh h\u1ecdc l\u1ea5y linh ki\u1ec7n. N\u1ebfu b\u1ea1n s\u1ea3n xu\u1ea5t v\u1edbi nhi\u1ec1u lo\u1ea1i linh ki\u1ec7n nh\u1ecf, h\u00e3y th\u1ef1c hi\u1ec7n th\u01b0\u1eddng xuy\u00ean h\u01a1n so v\u1edbi m\u1ee9c b\u1ea1n c\u1ea3m th\u1ea5y c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"can-vision-system-alignment-drift-affect-smt-placement-accuracy-even-if-the-machine-passes-\">S\u1ef1 l\u1ec7ch l\u1ea1c trong vi\u1ec7c c\u0103n ch\u1ec9nh h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a vi\u1ec7c \u0111\u1eb7t linh ki\u1ec7n SMT ngay c\u1ea3 khi m\u00e1y \u201c\u0111\u1ea1t y\u00eau c\u1ea7u\u201d?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 l\u1ec7ch pha c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a vi\u1ec7c \u0111\u1eb7t linh ki\u1ec7n SMT b\u1eb1ng c\u00e1ch t\u1eeb t\u1eeb thay \u0111\u1ed5i b\u1ea3n \u0111\u1ed3 \u00e1nh x\u1ea1 camera-tr\u1ee5c, ph\u1ea3n \u1ee9ng \u00e1nh s\u00e1ng ho\u1eb7c ng\u01b0\u1ee1ng ph\u00e1t hi\u1ec7n c\u1ea1nh, khi\u1ebfn trung t\u00e2m linh ki\u1ec7n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n b\u1edfi m\u00e1y (v\u00e0 trung t\u00e2m tham chi\u1ebfu) b\u1ecb l\u1ec7ch, t\u1ea1o ra c\u00e1c sai l\u1ec7ch nh\u1ea5t qu\u00e1n v\u1eabn tr\u00f4ng \u201c\u1ed5n \u0111\u1ecbnh\u201d b\u00ean trong m\u00e1y v\u00ec m\u00f4 h\u00ecnh n\u1ed9i b\u1ed9 c\u0169ng b\u1ecb l\u1ec7ch theo. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n v\u1ec1 hi\u1ec7u su\u1ea5t \u0111o l\u01b0\u1eddng l\u00e0 quan tr\u1ecdng, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef th\u1eddi th\u01b0\u1ee3ng m\u00e0 l\u00e0 m\u1ed9t ki\u1ec3m tra th\u1ef1c t\u1ebf.&nbsp;<a href=\"https:\/\/www.nist.gov\/publications\/towards-development-standards-and-performance-metrics-3d-imaging-systems\" target=\"_blank\" rel=\"noopener\">C\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u c\u1ee7a NIST v\u1ec1 c\u00e1c ch\u1ec9 s\u1ed1 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t th\u1ecb gi\u00e1c<\/a>. (<a href=\"https:\/\/www.nist.gov\/publications\/towards-development-standards-and-performance-metrics-3d-imaging-systems?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7n Ti\u00eau chu\u1ea9n v\u00e0 C\u00f4ng ngh\u1ec7 Qu\u1ed1c gia (NIST)<\/a>)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 v\u1ec1 l\u1ed7i l\u1ec7ch (offset-error) v\u00e0 c\u1ea3m th\u1ea5y b\u1ebf t\u1eafc, \u0111\u1eebng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 \u201c\u0111i\u1ec1u ch\u1ec9nh\u201d \u0111\u01b0\u1eddng d\u1eabn v\u00e0 hy v\u1ecdng m\u1ecdi th\u1ee9 s\u1ebd t\u1ed1t h\u01a1n. H\u00e3y x\u00e2y d\u1ef1ng m\u1ed9t quy tr\u00ecnh ch\u1ea9n \u0111o\u00e1n l\u1eb7p l\u1ea1i v\u00e0 t\u00edch h\u1ee3p n\u00f3 v\u00e0o quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n c\u1ea7n h\u1ed7 tr\u1ee3 thi\u1ebft k\u1ebf v\u00f2ng l\u1eb7p cho lo\u1ea1i \u0111\u01b0\u1eddng truy\u1ec1n c\u1ee7a m\u00ecnh\u2014m\u1eabu th\u1eed nghi\u1ec7m, h\u1ed7n h\u1ee3p ho\u1eb7c t\u1ed1c \u0111\u1ed9 cao\u2014h\u00e3y b\u1eaft \u0111\u1ea7u t\u1eeb k\u1ebft qu\u1ea3 m\u1ee5c ti\u00eau v\u00e0 l\u00e0m vi\u1ec7c ng\u01b0\u1ee3c l\u1ea1i qua qu\u00e1 tr\u00ecnh hi\u1ec7u chu\u1ea9n, d\u1eef li\u1ec7u v\u00e0 x\u00e1c minh. Ch\u00fang t\u00f4i&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/turnkey-smt-line-solutions\/\">Gi\u1ea3i ph\u00e1p d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t SMT tr\u1ecdn g\u00f3i<\/a>&nbsp;v\u00e0&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/\">C\u00e1c ph\u01b0\u01a1ng \u00e1n gi\u1ea3i ph\u00e1p<\/a>&nbsp;\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3i quy\u1ebft ch\u00ednh v\u1ea5n \u0111\u1ec1 \u0111\u00f3. V\u00e0 n\u1ebfu b\u1ea1n mu\u1ed1n c\u00f3 m\u1ed9t cu\u1ed9c tr\u00f2 chuy\u1ec7n nhanh ch\u00f3ng v\u1edbi k\u1ef9 s\u01b0 thay v\u00ec k\u1ecbch b\u1ea3n b\u00e1n h\u00e0ng, h\u00e3y s\u1eed d\u1ee5ng&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/contact\/\">Trang li\u00ean h\u1ec7<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u1ed7i l\u1ec7ch v\u1ecb tr\u00ed linh ki\u1ec7n kh\u00f4ng ph\u1ea3i l\u00e0 \u201cs\u1ef1 c\u1ed1 ng\u1eabu nhi\u00ean\u201d. Th\u01b0\u1eddng th\u00ec l\u1ed7i n\u00e0y c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i, \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c v\u00e0 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c - n\u1ebfu b\u1ea1n ng\u1eebng ph\u1ecfng \u0111o\u00e1n v\u00e0 b\u1eaft \u0111\u1ea7u xem vi\u1ec7c \u0111\u1eb7t v\u1ecb tr\u00ed linh ki\u1ec7n nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 hi\u1ec7u chu\u1ea9n.<\/p>","protected":false},"author":1,"featured_media":5603,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[837],"tags":[1010,1011,847,1012,1008,1009],"class_list":["post-5599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-process-quality","tag-aoi-inspection","tag-fiducial-alignment","tag-nozzle-maintenance","tag-pcb-assembly-quality","tag-pick-and-place-calibration","tag-smt-troubleshooting"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/posts\/5599","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/comments?post=5599"}],"version-history":[{"count":2,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/posts\/5599\/revisions"}],"predecessor-version":[{"id":6390,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/posts\/5599\/revisions\/6390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/media\/5603"}],"wp:attachment":[{"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/media?parent=5599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/categories?post=5599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pickandplacemachine.com\/vi\/wp-json\/wp\/v2\/tags?post=5599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}