PCB坏点英语培训课程(ppt 36页)
所属分类:PCB印制电路板
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PCB坏点英语培训课程目录:
一、Process Flow
二、Defect Introduction
三、Test
PCB坏点英语培训课程内容提要:
Surface Treatment(表面处理):
Scl hole under size
Scl hole over size
Solder over thickness
Solder lump
Thin solder
Block hole by scl
Copper expose on solder
Contamination on solder
Solder on carbon ink
Solder in hole
Scl hole rough
Poor solder stripping
Poor solder surface
S\M on pad SMD
Pitch width under size
Grey solder surface
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