Alt-BEAM Archive
Message #06759
To: beam@sgiblab.sgi.com; beam@sgiblab.sgi.com
From: Robert Stein rastein@dakotacom.net
Date: Fri, 15 Oct 1999 21:26:24 -0500
Subject: Re: PCB etching
| .....If you want a smaller circuit make it double sided. make too
| masks, with a crosshair off to the side and use a double sided copper
| clad. Line up the crosshairs of the mask, with the copperclad
| between. Then expose both sides of the copper clad. etc. etc
|
Toner transfer method also lends itself to double-sided boards if you can
get the two sides printed a reasonable distance apart and in proper relation
to each other so that you can fold the paper, get the two sides in perfect
sync before creasing the fold, then inserting the board. The fold takes care
of keeping the registration while you apply the iron.
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