Neil,
If you like to send pictures of your microsections, I would be happy to study them. In
general, copper smear can be a problem with multilayer PCBs.
Neil Atkinson wrote:
> I have some microsections of some DSPTH boards made by one of our suppliers
> which show smearing on the vertical side of the outer copper layer.
>
> Figure 3.2 of IPC6012 (page 12) shows the condition. Having read IPC-6012
> and IPC600 I am confused as to the acceptability of this. I would
> appreciate any comments or an offer from someone for me to send them
> microsection photographs by e-mail direct (I understand the TechNet
> automatically removes attachments.
>
> Thanks,
>
> Neil
>
> Neil Atkinson - Quality Manager
> Stadium Electronic Controls Division
> Stephen House, Brenda Road, Hartlepool TS25 2BQ
>
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_________________________
pratap singh
tel/fax: 512-255-6820
email: [log in to unmask]
WEB: www.rampinc.com
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