修訂號 | 修訂內容摘要 | 發行日期 |
0 | 首次發行 | /FEB/2005 |
一.SMT 元件(SMT component) 1.焊點規格(Soldering spec.) 1.1.Chip零件移位(Chip component shift) | |||||||
圖 例 | 判 定 標 准 | ||||||
每日军事新闻 Side overhang (D) is greater than 25% component termination width (W) or 25% land width (P) whichever is less.-----Defect 零件上下平偏移 D>25%W或D>25%P 拒收 (任何一個條件滿足,可拒收) | |||||||
Side overhang (D) is greater than 25% component termination width (W) or 25% land width (P) whichever is less.-------Defect 零件旋轉偏移 D>25%W或D>25%P 拒收 (任何一個條件滿足,可拒收) | |||||||
Termination overhangs land(B>0)------Defect 零件左右平偏移超出PAD(B>0) 拒收 | |||||||
Component overhangs 25% length of metallization terminal end (L) or less than 0.25mm ------Defect 零件水平偏移l>25%L 或l>0.25mm 拒收 | |||||||
Component in rerved to lacquer to go to circuit to form a short circuit.------Defect 零件偏移在有保護漆的線路上造成短路 拒收 | |||||||
End joint width (C) is minimum 75% of component termination width (W) or 75% land width (P) ,whichever is less.---- Acceptable 零件偏移后焊點寬度 C>75%W 或是C>75在现场英语%P 允收 (任何一個條件滿足,可允收) | |||||||
1.2.Chip零件多錫.少錫及錫不熔透(Chip component) | |||||||
圖 例 | 判 定 標 准 | ||||||
Maximum fillet height (E) may overhang the land or extend onto the top of the end cap metallization, but not extend further onto the component body.------Acceptable 錫多超過金屬端,但末端沒有延伸至零件本体. 允收 | |||||||
Solder fillet extends onto the component body.------Defect 錫延伸到零件本体上 拒收 | |||||||
圖1 篮球资料圖2 | 1. Insufficient solder.-----Defect 少錫. 拒收小学乘法口诀表 (圖1) 2. Minimum fillet high(F) is less than 3/4 termination high(H) . ----Defect 上錫高度F<3/4H . 拒收 (圖2) | ||||||
Insufficient end overlap . -----Defect 移出焊盤民族的脊梁 拒收 | |||||||
安居乐业是什么意思 2.1.圓柱体零件移位.(Cylindrical End Cap Termination) | |||||||
圖 例 | 判 定 標 准 | ||||||
Side overhang (A) is greater than 25% component diameter(W) or land width (P), whichever is less.------Defect 零件偏移 A>25%W或A>25%P 拒收 (任何一個條件滿足,可拒收) 備注 ( W : 零件直徑 P: 銅箔寬度 ) | |||||||
Any end overhang(B)-------Defect 零件偏移超出 PAD(B>0) 拒收 | |||||||
End joint width (C) is minimum 75% of component diameter (W) or 75% land width (P), whichever is less.------Acceptable 零件連接直徑寬度 C≧75%W 或75%P 允收 (任何一個條件滿足,可允收) 備注 ( W : 零件直徑 P: 銅箔寬度 ) | |||||||
2.2.圓柱体零件多錫.少錫及錫不熔透(Cylindrical End Cap Termination) | |||||||
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