{"id":2531,"date":"2026-08-26T00:00:00","date_gmt":"2026-08-26T00:00:00","guid":{"rendered":"https:\/\/swesd.com\/?p=2531"},"modified":"2026-08-20T06:57:32","modified_gmt":"2026-08-20T06:57:32","slug":"ansi-esd-s20-20-iec-61340-smt-lines","status":"publish","type":"post","link":"https:\/\/swesd.com\/vi\/blog\/ansi-esd-s20-20-iec-61340-smt-lines\/","title":{"rendered":"Hi\u1ec3u v\u1ec1 ANSI\/ESD S20.20 v\u00e0 IEC 61340 cho c\u00e1c D\u00e2y chuy\u1ec1n SMT"},"content":{"rendered":"
\n

Khi m\u1ed9t gi\u00e1m \u0111\u1ed1c tu\u00e2n th\u1ee7 t\u1ea1i Praha cho ki\u1ec3m to\u00e1n vi\u00ean xem m\u1ed9t t\u1ee7 \u0111\u1ea7y c\u00e1c s\u1ea3n ph\u1ea9m ESD \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn, cu\u1ed9c ki\u1ec3m to\u00e1n v\u1eabn b\u1ecb t\u1ea1m d\u1eebng. H\u1ed3 s\u01a1 \u0111\u00e0o t\u1ea1o ch\u01b0a \u0111\u1ea7y \u0111\u1ee7, k\u1ebf ho\u1ea1ch x\u00e1c minh kh\u00f4ng n\u00eau r\u00f5 kho\u1ea3ng th\u1eddi gian ki\u1ec3m tra, v\u00e0 m\u1ed9t xe \u0111\u1ea9y c\u1ea1nh d\u00e2y chuy\u1ec1n kh\u00f4ng c\u00f3 tuy\u1ebfn n\u1ed1i \u0111\u1ea5t x\u00e1c \u0111\u1ecbnh. V\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00e0 vi\u1ec7c thi\u1ebfu c\u00e1c v\u1eadt t\u01b0 ESD; m\u00e0 l\u00e0 s\u1ef1 thi\u1ebfu v\u1eafng m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3.<\/p>\n

T\u00f3m t\u1eaft:<\/strong> ANSI\/ESD S20.20 v\u00e0 IEC 61340-5-1 l\u00e0 c\u00e1c ti\u00eau chu\u1ea9n ch\u01b0\u01a1ng tr\u00ecnh d\u00f9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c linh ki\u1ec7n nh\u1ea1y c\u1ea3m v\u1edbi t\u0129nh \u0111i\u1ec7n. M\u1ed9t d\u00e2y chuy\u1ec1n SMT c\u1ea7n c\u00f3 k\u1ebf ho\u1ea1ch ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a, c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt, \u0111\u00e0o t\u1ea1o, n\u1ed1i \u0111\u1ea5t, c\u00e1c khu v\u1ef1c \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, \u0111\u00f3ng g\u00f3i v\u00e0 x\u00e1c minh s\u1ef1 tu\u00e2n th\u1ee7. C\u00e1c ch\u1ee9ng nh\u1eadn s\u1ea3n ph\u1ea9m h\u1ed7 tr\u1ee3 cho h\u1ec7 th\u1ed1ng, nh\u01b0ng quy\u1ec1n s\u1edf h\u1eefu, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p, h\u1ed3 s\u01a1 v\u00e0 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c m\u1edbi l\u00e0 y\u1ebfu t\u1ed1 gi\u00fap h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c.<\/p>\n

Nh\u1eefng y\u00eau c\u1ea7u c\u1ee7a ti\u00eau chu\u1ea9n ANSI\/ESD S20.20 \u0111\u1ed1i v\u1edbi m\u1ed9t t\u1ed5 ch\u1ee9c s\u1ea3n xu\u1ea5t SMT<\/h2>\n

Ti\u00eau chu\u1ea9n ANSI\/ESD S20.20 y\u00eau c\u1ea7u m\u1ed9t t\u1ed5 ch\u1ee9c ph\u1ea3i thi\u1ebft l\u1eadp, l\u1eadp th\u00e0nh v\u0103n b\u1ea3n, th\u1ef1c hi\u1ec7n, duy tr\u00ec v\u00e0 x\u00e1c minh ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m so\u00e1t ph\u00f3ng \u0111i\u1ec7n t\u0129nh (ESD). Ch\u01b0\u01a1ng tr\u00ecnh n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1eb7t h\u00e0ng nh\u1ea1y c\u1ea3m v\u1edbi ESD (ESDS), ph\u00e2n c\u00f4ng tr\u00e1ch nhi\u1ec7m, \u0111\u1ecbnh ngh\u0129a c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t k\u1ef9 thu\u1eadt, \u0111\u00e0o t\u1ea1o nh\u00e2n s\u1ef1 v\u00e0 duy tr\u00ec b\u1eb1ng ch\u1ee9ng tu\u00e2n th\u1ee7.<\/p>\n

\u0110\u1ed1i v\u1edbi m\u1ed9t d\u00e2y chuy\u1ec1n SMT, k\u00e9o d\u00e0i t\u1eeb kh\u00e2u \u0111\u1ea7u v\u00e0o thi\u1ebft b\u1ecb g\u1eafn b\u1ec1 m\u1eb7t<\/strong><\/a> \u0111\u00f3ng g\u00f3i th\u00f4ng qua kh\u00e2u gom linh ki\u1ec7n (kitting), in \u1ea5n, \u0111\u1ecbnh v\u1ecb, h\u00e0n l\u1ea1i (reflow), ki\u1ec3m tra, gia c\u00f4ng l\u1ea1i (rework), l\u01b0u kho v\u00e0 v\u1eadn chuy\u1ec3n. Ranh gi\u1edbi khu v\u1ef1c \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 v\u00e0 m\u1ecdi c\u00f4ng \u0111o\u1ea1n b\u00e0n giao v\u1eadt li\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh r\u00f5 r\u00e0ng.<\/p>\n

Ti\u00eau chu\u1ea9n IEC 61340-5-1 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c chu\u1ed7i cung \u1ee9ng to\u00e0n c\u1ea7u nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n

Ti\u00eau chu\u1ea9n IEC 61340-5-1 cung c\u1ea5p m\u1ed9t khu\u00f4n kh\u1ed5 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn qu\u1ed1c t\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u1ecfi hi\u1ec7n t\u01b0\u1ee3ng t\u0129nh \u0111i\u1ec7n. C\u00e1c kh\u00e1ch h\u00e0ng \u0111a qu\u1ed1c gia th\u01b0\u1eddng vi\u1ec7n d\u1eabn ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ec3 c\u00e1c c\u01a1 s\u1edf \u1edf c\u00e1c qu\u1ed1c gia kh\u00e1c nhau c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc ki\u1ec3m so\u00e1t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, \u0111\u1ed3ng th\u1eddi duy tr\u00ec c\u00e1c quy tr\u00ecnh t\u1ea1i ch\u1ed7 ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb v\u00e0 r\u1ee7i ro t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n

M\u1ed9t nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 tu\u00e2n th\u1ee7 c\u1ea3 y\u00eau c\u1ea7u c\u1ee7a IEC v\u00e0 ANSI\/ESD. Ng\u01b0\u1eddi mua n\u00ean so\u0635 s\u00e1nh ph\u1ea1m vi, phi\u00ean b\u1ea3n, c\u00e1c \u0111i\u1ec1u kho\u1ea3n lo\u1ea1i tr\u1eeb v\u00e0 h\u1ed3 s\u01a1 x\u00e1c minh th\u1ef1c t\u1ebf thay v\u00ec gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng hai logo c\u00f3 ngh\u0129a l\u00e0 vi\u1ec7c th\u1ef1c hi\u1ec7n gi\u1ed1ng h\u1ec7t nhau.<\/p>\n

\"Thi\u1ebft
Thi\u1ebft b\u1ecb theo d\u00f5i d\u00e2y \u0111eo c\u1ed5 tay li\u00ean t\u1ee5c h\u1ed7 tr\u1ee3 ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m so\u00e1t ESD trong d\u00e2y chuy\u1ec1n SMT.<\/figcaption><\/figure>\n

Nh\u1eefng y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt n\u00e0o quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u1ed9t d\u00e2y chuy\u1ec1n SMT<\/h2>\n

C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m ti\u1ebfp \u0111\u1ea5t cho nh\u00e2n vi\u00ean, b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c v\u00e0 s\u00e0n EPA, ion h\u00f3a \u1edf nh\u1eefng n\u01a1i kh\u00f4ng th\u1ec3 n\u1ed1i \u0111\u1ea5t cho c\u00e1c v\u1eadt d\u1eabn \u0111i\u1ec7n, x\u1eed l\u00fd v\u00e0 \u0111\u00f3ng g\u00f3i, \u0111\u00e1nh d\u1ea5u, ti\u1ebfp \u0111\u1ea5t thi\u1ebft b\u1ecb v\u00e0 x\u00e1c minh. C\u01a1 s\u1edf ph\u1ea3i x\u00e1c \u0111\u1ecbnh c\u00e1c gi\u1edbi h\u1ea1n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p cho c\u00e1c h\u1ea1ng m\u1ee5c m\u00e0 c\u01a1 s\u1edf s\u1eed d\u1ee5ng.<\/p>\n

The V\u1eadt t\u01b0 SMT ch\u1ed1ng t\u0129nh \u0111i\u1ec7n<\/strong><\/a> danh s\u00e1ch k\u1ebft n\u1ed1i v\u1edbi khung n\u00e0y: th\u1ea3m v\u00e0 d\u00e2y \u0111ai ki\u1ec3m so\u00e1t con ng\u01b0\u1eddi v\u00e0 tr\u1ea1m l\u00e0m vi\u1ec7c; th\u00f9ng, khay, gi\u00e1 \u0111\u1ee1 v\u00e0 xe \u0111\u1ea9y ki\u1ec3m so\u00e1t vi\u1ec7c x\u1eed l\u00fd; B\u0103ng d\u00ednh ch\u1ed1ng t\u0129nh \u0111i\u1ec7n<\/strong> h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee5c \u0111\u00edch \u0111\u00e1nh d\u1ea5u ho\u1eb7c \u0111\u00f3ng g\u00f3i \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh; Kh\u0103n lau ch\u1ed1ng t\u0129nh \u0111i\u1ec7n<\/strong> v\u00e0 Kh\u0103n lau khu\u00f4n in SMT<\/strong> ph\u1ea3i ti\u1ebfp t\u1ee5c t\u01b0\u01a1ng th\u00edch v\u1edbi c\u1ea3 ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u1ea1ch v\u00e0 ch\u1ed1ng t\u0129nh \u0111i\u1ec7n (ESD).<\/p>\n

Nh\u1eefng g\u00ec ki\u1ec3m to\u00e1n vi\u00ean mong \u0111\u1ee3i \u0111\u01b0\u1ee3c th\u1ea5y<\/h2>\n

M\u1ed9t ki\u1ec3m to\u00e1n vi\u00ean th\u01b0\u1eddng l\u1ea7n theo b\u1eb1ng ch\u1ee9ng t\u1eeb y\u00eau c\u1ea7u \u0111\u1ebfn vi\u1ec7c th\u1ef1c thi: k\u1ebf ho\u1ea1ch n\u00eau t\u00ean m\u1ed9t bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t, quy tr\u00ecnh n\u00eau t\u00ean m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p v\u00e0 kho\u1ea3ng th\u1eddi gian, h\u1ed3 s\u01a1 th\u1ec3 hi\u1ec7n m\u1ed9t k\u1ebft qu\u1ea3, v\u00e0 h\u1ec7 th\u1ed1ng h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c gi\u1ea3i th\u00edch c\u00e1c l\u1ed7i. M\u1ed9t ch\u1ee9ng ch\u1ec9 thi\u1ebfu \u0111i chu\u1ed7i n\u00e0y l\u00e0 ch\u01b0a ho\u00e0n ch\u1ec9nh.<\/p>\n

C\u00e1c h\u1ed3 s\u01a1 h\u1eefu \u00edch bao g\u1ed3m t\u00ecnh tr\u1ea1ng \u0111\u00e0o t\u1ea1o, hi\u1ec7u chu\u1ea9n thi\u1ebft b\u1ecb, ki\u1ec3m tra nh\u00e2n s\u1ef1 h\u00e0ng ng\u00e0y ho\u1eb7c li\u00ean t\u1ee5c, k\u1ebft qu\u1ea3 b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c, x\u00e1c minh thi\u1ebft b\u1ecb ion h\u00f3a, \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3ng g\u00f3i, th\u00f4ng b\u00e1o thay \u0111\u1ed5i nh\u00e0 cung c\u1ea5p v\u00e0 \u0111\u00f3ng s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p. Vi\u1ec7c l\u01b0u gi\u1eef h\u1ed3 s\u01a1 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, quy \u0111\u1ecbnh v\u00e0 h\u1ec7 th\u1ed1ng ch\u1ea5t l\u01b0\u1ee3ng n\u1ed9i b\u1ed9 \u0111\u1ec3 b\u1eb1ng ch\u1ee9ng l\u1ecbch s\u1eed lu\u00f4n c\u00f3 s\u1eb5n trong qu\u00e1 tr\u00ecnh \u0111i\u1ec1u tra.<\/p>\n

Nh\u1eefng n\u1ed9i dung m\u00e0 m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m so\u00e1t ESD trong c\u00f4ng ngh\u1ec7 SMT ph\u1ea3i t\u00e0i li\u1ec7u h\u00f3a<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
Th\u00e0nh ph\u1ea7n ch\u01b0\u01a1ng tr\u00ecnh<\/th>\nT\u00e0i li\u1ec7u b\u1eaft bu\u1ed9c<\/th>\nL\u1ed7 h\u1ed5ng ki\u1ec3m to\u00e1n ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n
K\u1ebf ho\u1ea1ch v\u00e0 quy\u1ec1n s\u1edf h\u1eefu<\/td>\nK\u1ebf ho\u1ea1ch ki\u1ec3m so\u00e1t ESD \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t v\u00e0 \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh \u0111i\u1ec1u ph\u1ed1i vi\u00ean<\/td>\nCh\u00ednh s\u00e1ch chung kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3 quy tr\u00ecnh<\/td>\n<\/tr>\n
\u0110\u00e0o t\u1ea1o<\/td>\nQuy t\u1eafc n\u1ed9i dung theo vai tr\u00f2, ho\u00e0n th\u00e0nh, b\u1ed5 t\u00fac<\/td>\nC\u00f3 m\u1eb7t nh\u01b0ng kh\u00f4ng c\u00f3 n\u0103ng l\u1ef1c<\/td>\n<\/tr>\n
Bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t k\u1ef9 thu\u1eadt<\/td>\nGi\u1edbi h\u1ea1n, ph\u01b0\u01a1ng ph\u00e1p, h\u1ed3 s\u01a1 l\u1eafp \u0111\u1eb7t<\/td>\nC\u00e1c s\u1ea3n ph\u1ea9m ch\u1ec9 \u0111\u01b0\u1ee3c ch\u1ecdn b\u1eb1ng nh\u00e3n \u201cAn to\u00e0n ESD\u201d<\/td>\n<\/tr>\n
X\u00e1c minh tu\u00e2n th\u1ee7<\/td>\nL\u1ecbch tr\u00ecnh, c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u00e3 hi\u1ec7u chu\u1ea9n, k\u1ebft qu\u1ea3, c\u00e1c h\u00e0nh \u0111\u1ed9ng<\/td>\nC\u00e1c th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n kh\u00f4ng theo ph\u01b0\u01a1ng ph\u00e1p hay gi\u1edbi h\u1ea1n n\u00e0o<\/td>\n<\/tr>\n
Ki\u1ec3m so\u00e1t nh\u00e0 cung c\u1ea5p<\/td>\nTh\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 th\u00f4ng b\u00e1o thay \u0111\u1ed5i<\/td>\nThay th\u1ebf v\u1eadt li\u1ec7u ng\u1ea7m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Ki\u1ec3m so\u00e1t ESD trong to\u00e0n b\u1ed9 quy tr\u00ecnh s\u1ea3n xu\u1ea5t SMT<\/h2>\n
\n\n\n\n\n\n\n\n\n
Giai \u0111o\u1ea1n SMT<\/th>\nC\u00e2u h\u1ecfi ki\u1ec3m so\u00e1t ESD ch\u00ednh<\/th>\nB\u1eb1ng ch\u1ee9ng<\/th>\n<\/tr>\n<\/thead>\n
H\u00e0ng \u0111\u1ebfn\/\u0110\u00f3ng b\u1ed9 kit<\/td>\nBao b\u00ec b\u1ea3o v\u1ec7 c\u00f3 \u0111\u01b0\u1ee3c duy tr\u00ec cho \u0111\u1ebfn khi b\u00e0n giao cho EPA kh\u00f4ng?<\/td>\nQuy tr\u00ecnh ti\u1ebfp nh\u1eadn v\u00e0 m\u1edf ki\u1ec7n h\u00e0ng<\/td>\n<\/tr>\n
In \u1ea5n\/V\u1ecb tr\u00ed in<\/td>\nNh\u00e2n s\u1ef1, d\u1ee5ng c\u1ee5 v\u00e0 v\u1eadt t\u01b0 ti\u00eau hao c\u00f3 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t kh\u00f4ng?<\/td>\nKi\u1ec3m tra h\u00e0ng ng\u00e0y v\u00e0 danh s\u00e1ch v\u1eadt t\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td>\n<\/tr>\n
Ki\u1ec3m tra\/S\u1eeda ch\u1eefa l\u1ea1i<\/td>\nVi\u1ec7c n\u1ed1i \u0111\u1ea5t v\u00e0 ion h\u00f3a \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra x\u00e1c th\u1ef1c ch\u01b0a?<\/td>\nH\u1ed3 s\u01a1 b\u00e0n l\u00e0m vi\u1ec7c v\u00e0 thi\u1ebft b\u1ecb kh\u1eed t\u0129nh \u0111i\u1ec7n<\/td>\n<\/tr>\n
L\u01b0u tr\u1eef\/V\u1eadn chuy\u1ec3n<\/td>\nS\u1ef1 b\u1ea3o v\u1ec7 c\u00f3 \u0111\u01b0\u1ee3c duy tr\u00ec sau khi l\u1eafp r\u00e1p kh\u00f4ng?<\/td>\n\u0110\u00e1nh gi\u00e1 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3ng g\u00f3i v\u00e0 nh\u00e3n m\u00e1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

C\u00e1ch ANSI\/ESD S20.20 v\u00e0 IEC 61340 Ho\u1ea1t \u0110\u1ed9ng C\u00f9ng Nhau<\/h2>\n

ANSI\/ESD S20.20 v\u00e0 IEC 61340-5-1 l\u00e0 c\u00e1c t\u00e0i li\u1ec7u tham kh\u1ea3o ch\u01b0\u01a1ng tr\u00ecnh tr\u1ecdng t\u00e2m cho nh\u00f3m n\u00e0y. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u1ed7 tr\u1ee3 c\u1ee7a ANSI\/ESD STM v\u00e0 IEC 61340 \u0111\u1ecbnh ngh\u0129a c\u00e1c b\u00e0i ki\u1ec3m tra cho t\u1eebng h\u1ea1ng m\u1ee5c ki\u1ec3m so\u00e1t c\u1ee5 th\u1ec3. C\u00e1c t\u00e0i li\u1ec7u IPC \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng tay ngh\u1ec1 l\u1eafp r\u00e1p v\u00e0 x\u1eed l\u00fd, trong khi ISO 9001 h\u1ed7 tr\u1ee3 vi\u1ec7c ki\u1ec3m so\u00e1t t\u00e0i li\u1ec7u, qu\u1ea3n l\u00fd nh\u00e0 cung c\u1ea5p v\u00e0 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c. H\u1ee3p \u0111\u1ed3ng c\u1ea7n x\u00e1c \u0111\u1ecbnh r\u00f5 c\u00e1c phi\u00ean b\u1ea3n ch\u00ednh x\u00e1c v\u00e0 c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a kh\u00e1ch h\u00e0ng.<\/p>\n

\"Gi\u00e1
Gi\u00e1 m\u1ea1ch PCB ch\u1ed1ng t\u0129nh \u0111i\u1ec7n (ESD) d\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd v\u1eadt li\u1ec7u SMT \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7.<\/figcaption><\/figure>\n

C\u00e1ch chu\u1ea9n b\u1ecb m\u1ed9t d\u00e2y chuy\u1ec1n SMT cho m\u1ed9t cu\u1ed9c ki\u1ec3m to\u00e1n ESD<\/h2>\n