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January 2001

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Subject:
From:
"Stephen R. Gregory" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 10 Jan 2001 20:15:34 EST
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Hey all,

We've got a job in here that's going to be a few RF assembies. It uses
surface mount in the design, but the board doesn't have any soldermask at all
on the surface.

The last time I dealt with something such as this, and tried to print solder
paste, place components, and reflow, all I wound-up with is a bunch of
tomb-stones, and insufficient solder all over the board because the solder
wants to flow out all along the surface layer traces, and goes where-ever it
wants to go...because there's no soldermask to contain it.

I'll try to post a picture of what I'm getting ready to deal with on my
free-drive tomorrow...

This is not high volume at all, but from past experience it's my take that we
should just hand solder stuff like this...because we'll wind-up touching-up
everything anyway...have any of you ever dealt with stuff like this before?

-Steve Gregory-

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