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Mail Archives: geda-help/2016/03/18/13:50:27

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Date: Fri, 18 Mar 2016 13:49:51 -0400
Message-ID: <CAM2RGhSQf+icF4if_bAau6kV8dms=Q466f0yPP1p8C_8K_zmtw@mail.gmail.com>
Subject: Re: [geda-help] remove all soldermask
From: "Evan Foss (evanfoss AT gmail DOT com) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com>
To: geda-help AT delorie DOT com
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On Fri, Mar 18, 2016 at 1:00 PM, James Battat (jbattat AT wellesley DOT edu)
[via geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote:
> In pcb, how do I specify that there should be no solder mask on the top layer of my board?
>
> I know about growing t he mask clearance for a given pin/pad using “K”, but want to suppress the entire solder mask.
> I’ve tried drawing a polygon (rectangle) just inside of the board outline, but can’t draw on the solder mask “layer” (I guess because it’s not really a layer?).
> Maybe “K” is the way to go?

I had this problem with some transimpedance amplifiers. I made the
sensor and opamp pins have a huge solder mask clearance (almost the
whole board). Later I got more refined about it and made a footprint
for an exposed copper ring around the TIA. That had a generous
clearance too.

> Thanks,
> James
>
>



-- 
Home
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http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

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