IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第116页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • Plating is smooth and uniform throughout the hole. No evidence of roughness or nodules. • 整个孔 壁 镀层 平滑 而均匀 。 无粗糙 或 结 瘤迹 象。 Acceptable - Class 1,2,3 (可接受条件 - 1,2,3级) • Roug…

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Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No cracks in plating.
镀层
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
No cracks in plating.
镀层
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
336a
336b
336c
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.6 Plating Crack – (Corner) ‘F’ Crack(镀层裂 拐⾓F型
107IPC-A-600H-2010 20104
Visual observations made on cross-sections only.对显微切片进行目检观察。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Plating is smooth and uniform throughout the hole. No evidence
of roughness or nodules.
整个孔镀层平滑而均匀无粗糙瘤迹象。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Roughness or nodules do not reduce plating thickness below
absolute minimum requirements or hole diameter below mini-
mum requirements.
粗糙没有使镀层小至低于对最且未使
低于最低要求。
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
337a
337b
337c
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.7 Plating Nodules(镀层结瘤)
108 IPC-A-600H-201020104
Visual observations made on cross-sections only.对显微切片进行目检观察。
The average copper thickness should be determined from three measurements, approximately equally spaced, on each side of the PTH. Do
not measure in areas having isolated imperfections such as voids, cracks or nodules.
均铜应该通过在上大距离选三个测试的测量值确定。不要测量有缺陷的区域,例如空洞、
等。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Plating is smooth and uniform throughout the hole. Plating thick-
ness meets requirements.
整个孔镀层平滑而均匀镀层足要求。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Plating thickness varies but meets minimum average require-
ments and minimum thin area requirements in the IPC-6010
series.
Small localized areas with plating thickness less than minimum
requirement are evaluated as voids.
镀层,但IPC 6010系列中规定的最低
要求和最区域要求。
对于镀层度小于最要求的区域,空洞对其进行
评定。
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
338a
338b
338c
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.8 Copper Plating Thickness – Hole Wall(铜镀层
109IPC-A-600H-2010 20104
Visual observations made on cross-sections only.对显微切片进行目检观察。