IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第115页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • No cracks in plating. • 镀层 无 裂 缝 。 Acceptable - Class 1,2,3 (可接受条件 - 1,2,3级) • No cracks in plating. • 镀层 无 裂 缝 。 Nonconforming - Class 1,2,3 (不符合条件 - 1,2,3级) • Defects e…

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Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Barrel plating is free of cracks.
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。
335a
335b
335c
3.3 PLATED-THROUGH HOLES – GENERAL(镀覆孔 则)
3.3.5 Plating Crack (Barrel) ‘E’ Crack(镀层裂(孔 E型
106 IPC-A-600H-201020104
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)
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。