Ang,

Virually all solder suppliers will be happy make preforms to your
specification.

If you contract lot sizes are small and there is not money available to
justify the NRE on the preforms, consider printing [or dispensing] solder
paste to meet your solder requirements and reflowing soldering your boards.
[Yano, similar to pin & paste]

Dave Fish
----- Original Message -----
From: "Angela Gregor" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, April 17, 2003 1:44 PM
Subject: [TN] Controlled Solder


> Hello everyone! As a new member I am going to put this new tool to the
test
> immediately. I work for a small company in Florida, and we build mainly
> defense product for the government. We have a big problem hopefully
someone
> can help with. We are currently building a product that has through hole
> cylindrical type hollow pins inserted into a printed circuit board then
> soldered into place. (solder is not allowed to make contact with the
inside
> wall of the hollow pins). We are allowed only minimal amount of solder. It
> is extremely difficult to achieve this while maintaining 75% fill of
solder
> in the board. I have heard of something called solder doughnuts that will
> allow us to flow the same amount of solder each time but have been
> unsuccessful in locating them. Any advise would be helpful. Thanks!
Angela
>
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