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Date: | 16 Jan 97 11:01:28 -0500 |
Content-Type: | text/plain |
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How are you fluxing the tantalum capacitors.
Foam no clean and fixed head spray fluxers have trouble properly
fluxing small SMD pads. This usually shows up as skips and
insufficients, since some of the pad does see flux, but the rest is
shadowed from the fluxer, or blown clean by the flux air knife
(turbulence occurs where the air stream is deflected by the close
part).
______________________________ Reply Separator _________________________________
Subject: Assy: Solder Skip
Author: [log in to unmask] at internet
Date: 1/16/97 9:01 AM
Hi Technetters,
I am wandering anyone could suggest ways to get rid of solder skips.
We have a lot of solder skip on the Tant capacitor, case size type A
and B, but don't have any problem with the rest of the chip components
and SOICs. The pad size for the Tant Cap id pretty small, only allow
very little for space for the chip wave to be able to solder to the
terminations.
Any ideas how to fix it..We are running no-clean using a full-blow nitrogen
tunnel wave-solder machine.
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