Electronics Forum | Tue Aug 26 11:29:08 EDT 2008 | pcbbuilders
too funny. i'd hate to see you burn down the house, you can borrow my reflow if you're in ny!
Electronics Forum | Tue Aug 26 13:00:03 EDT 2008 | wavemasterlarry
That brings back bad memories. My friend Tony liked to run experiments with my equipment.
Electronics Forum | Fri Apr 23 17:59:54 EDT 2010 | hegemon
Therein lies the issue. Unknown storage conditions before we received the PCBs, date codes just expired (2 weeks), first article is de-lam city! Had a bad feeling about it. Have read some studies showing that there is no linear tie in of visual cha
Electronics Forum | Sat Apr 24 10:43:31 EDT 2010 | davef
Hege: Sounds like this customer is a putz. Ask the putz to sign a release, acknowledging responsibility. Here's a couple more links on imm silver: * http://www.pcbdesignschool.com/wp-content/uploads/2009/08/the-study-measurement-and-prevention-of-t
Electronics Forum | Fri Aug 06 10:07:50 EDT 2004 | blnorman
OSP has limited elevated temperature exposure capability. Couple that with the fact that solvents (IPA in particular) will remove the OSP. The more material you loose the higher the chances for pad oxidation. We ran an experiment with board washin
Electronics Forum | Mon Apr 26 14:40:07 EDT 2010 | blnorman
We had one product that used immersion silver plating. There were a couple of instances where we saw tarnishing, and elemental analysis confirmed the presence of sulfur. These boards did have the anti-tarnish sheets between boards, but somehow they
Electronics Forum | Mon Jan 30 11:57:06 EST 2006 | james
We are running under 5% RH. The parts we are having problems with are QFP 208. We have a clean process and right now I am baking 3 boards before they remove the parts and then sending them back to test.
Electronics Forum | Fri Jan 13 11:36:27 EST 2006 | stepheniii
If there is any other MSD's on it, yes. Otherwise, depends.
Electronics Forum | Wed Aug 23 11:56:09 EDT 2006 | aj
rgd's aj...
Electronics Forum | Fri Jan 13 08:59:29 EST 2006 | james
We built some boards with incorrect Bgas and we had to pull the bad ones off. I need to know if we need to bake the boards before we add the correct BGAs on and resend through the reflow? We need to get these boards shipped asap after we install th
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