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Tue, 11 Nov 1997 23:18:06 -0500 |
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[log in to unmask] wrote:
>
> Among the ways of sealing vias on LPI solder masked boards are a) filling
> the vias with LPI, and b) tenting the vias with dry film solder mask.
>
> We are on the brink of converting from dry film to LPI on all our PCB's. I
> would appreciate any comments on the relative merits/demerits of boards
> produced by these two processes. Our supplier recommends the dry film
> option.
>
> Our boards are sometimes in relatively harsh environments and are designed
> to operate from -40 C to +70 C.
>
> Thanks to those of you who responded to my inquiry on how to repair
> urethane conformally coated boards which have been contaminated with
> silicone prior to conformal coating.
>
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> For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
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Have you looked into Taiyo LPI. We use a Taiyo LPI and plug the
vias with a Lackwerke Peters hole plug. Great processing latitude on the
Taiyo and we haven't had any issues with the hole plug...been doing it
for quite a while now.
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Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
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