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Subject: Re: [Homebrew_PCBs] Need advice for large PCB and sub-mini SMDs

From: Dave Wade <dave.g4ugm@...>
Date: 2013-04-15

On Apr 15, 2013 5:30 AM, "william casselberry" <wcasse@...> wrote:
>
> I�m a relative noob trying to prototype a computer keyboard project where
my
> PCBs are about 12�x6�. They are single sided and have only 14 surface
mount components but
> these are really small. I would appreciate any advice from you guys with
> experience with big boards and small components.
>
> I have two substrates I am working with; .008" FR4 and
> Pyralux. I am trying to do toner transfer using Office Depot �glossy text�
> paper, but that paper shrinks about 1% when heated, so the toner is not
> sticking properly in some spots and the Pyralux is actually wrinkling in
the
> laminator due to paper shrink.
>
> More details about my project here:
> https://geekhack.org/index.php?topic=40111
>
> Thanks
>
I can't see the geekhack page, but if they are small smd devices with few
pins I would make carriers to allow them to go in normal IC sockets.
>
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>
>
>
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>
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