PCB坏点英语培训课程(ppt 36页)

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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