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From: Keith R. Williams
Subject: Re: What are these terms in PCB design?
Date: Thu, 3 Oct 2002 15:01:00 -0400
X-Newsreader: MicroPlanet Gravity v2.60
In article <email@example.com>, a?n?g?e?
> Top layer, bottom layer... which's the side the solder's on? I think
> it's the bottom layer. So if I am making a one layer PCB, I should put
> my traces and pads on the bottom and the PCB makers will know which
> way it should face?
Works for me. With a single layer you don't need plated holes so you
solder on the bottom (or back) side. Components go on the top.
Remember, the board is a mirror image when you look from the bottom.
Data sheets normally have show the top view.
> Plus, the PCB programs have this thing call pour/fill, is this what I
> use if I want to fill up an entire empty area with copper to act as a
> heatsink for a LED that's connected immediately to that trace?
Yep. Don't go overboard here though. Large lands also make it
somewhat harder to solder. That heat sink also works on a soldering
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