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Date: | Tue, 16 Mar 2010 10:30:42 -0400 |
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Hi Ioan,
We do this with 1 restriction. No more than 24 hrs from first reflow to wash. We only have a few boards that can meet that schedule but these are run that way.
Other boards get a 2 step wash. 1 after SMT (top and bottom) and 1 after manual soldering. Same limits of 24 hrs between reflow and wash or wave and wash.
Jerry Dengler
Production Manager
Pergamon Corporation
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan Tempea
Sent: Tuesday, March 16, 2010 10:06 AM
To: [log in to unmask]
Subject: [TN] Eliminating interemediate washes
Dear Technos,
Is it doable to wash a mixed technology board ( SMT + TH) only at the end of TH?
I mean instead of repeatedly washing (SMT first side-wash, SMT second side-wash, TH-wash, manual soldering-wash) adopting a one wash strategy (SMT first side-no wash, SMT second side-no-wash, TH-no wash, manual soldering-wash). TH might not be done in the same day as SMT, but no later than next day and boards washed within 3 hours after wave soldering.
Is anybody in the industry doing this?
Pros and cons?
Thanks,
Ioan Tempea, ing.
Ingénieur Principal de Fabrication / Senior Manufacturing Engineer T | 450.967.7100 ext.244 E | [log in to unmask] <mailto:[log in to unmask]> W | www.digico.cc <http://www.digico.cc/>
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