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From [log in to unmask] Thu Jan 2 10: |
56:54 1997 |
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At 09:03 AM 12/31/96 PST, you wrote:
> I would like to know the causes of solder blow-out in soldered PTH
> assemblies other than the insufficient copper thickness of PTH.
> We are encountered this kind of soldering problem on PCB with
> 0.8mil(average) in PTH copper thickness.
> Any help to identify the problem would be highly appreciated
>
> Best Regards,
>
> KP Chan
> Email: [log in to unmask]
>
>********************************************************************
Hi Chan,
I ever encounter this issue before. Even the drilling and plating are good,
I still
faced this problem.
I understand the raw material used for PCB fabrication is one of the
culprits.
Try cleaning and later bake the board at 100 deg. C for 4 hrs.
Good Luck..
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