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| From [log in to unmask] Tue Jun 17 11: |
11:18 1997 |
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| >From willli Fri Jun 13 10: |
41:06 1997 |
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ATT04677.htm 723 06-06-1997 19:56 |
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I like the (fresh)idea. but have not seen anyone using that. May be the
blowing air can disturb the solder while it is solidifying and leave its
marks(footprints-duckpads). May be this can create mess of solder balls all
around? May be this can migrate briges instead of complete removal.?Air blow
holes /pinholes ??
Most people have sorted the solder bridging problem by matching solder mask,
flux and wave solder parameters. Solder bridge can be due to design factors-
vias too close to pads or lead length or lead crimping problem.
I would like to have more info on this as we also do find this problem.
ashok dhawan
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From: Tony Stewart
To: [log in to unmask]
Subject: Hot Air Knife after solder pot?? Anyone use this?
Date: Friday, June 06, 1997 7:45PM
I would like to retrofit a hot-air knife in our waves after wave reflow to
reduce bridge opportunities on designs that are not optimized.
We use some Centruy 2000s and SOLTEC waves.
Tony
Eng Mgr
C-MAC Electronic Systems Inc
[[ ATT04677.htm : 2586 in ATT04677.htm ]]
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<P><FONT face=Arial size=2>I would like to retrofit a hot-air knife in our waves
after wave reflow to reduce bridge opportunities on designs that are not
optimized.</FONT>
<P><FONT face=Arial size=2>We use some Centruy 2000s and SOLTEC waves.</FONT>
<P><FONT face=Arial size=2></FONT>
<P><FONT face=Arial size=2>Tony</FONT>
<P><FONT face=Arial size=2>Eng Mgr</FONT>
<P><FONT face=Arial size=2></FONT><FONT face=Arial size=2>C-MAC Electronic
Systems Inc</FONT></P>
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