Electronics Forum | Mon Mar 31 11:10:43 EST 2003 | davef
First, most �thermal shock� recipes are not a reliability test. There is no relationship between the failures seem in these tests and in-use application. These tests show you the failures in these tests. That�s it!!! Second, accelerated life test
Electronics Forum | Fri Apr 26 09:32:22 EDT 2002 | blnorman
We conformally coat over NC solder paste. No problems. We're using a platinum catalyzed addition cure silicone. The only concern with this conformal coating is cure inhibition. You must test the coating over the residues to be sure there is no in
Electronics Forum | Fri Jun 07 11:08:34 EDT 2019 | gregoryyork
OK good if you get really close to the two small solder balls trapped in that greasy waxy residue and carefully turn the balls over you should see that they are flat on the side stuck to the solder resist.
Electronics Forum | Fri Jun 07 12:34:30 EDT 2019 | teejsd
C3 just uses heated DI water that it applies, then pulls back into a disposable cartridge. Machine then applies a 10V charge to the sample & measures leakage current(nA,I think) over time(sec). If the leakage current is high enough/fast enough, you
Electronics Forum | Fri Jun 07 12:44:55 EDT 2019 | gregoryyork
These residues are extremely water miscible BUT you will probably need the extraction of heated IPA/Water to get the porous resist to release the residue quicker than it would do releasing it naturally in the field. Why dont you try to soak the circu
Electronics Forum | Fri Jun 07 14:14:24 EDT 2019 | teejsd
Yes neither our HPLC IC nor our C3 could detect any concerning levels of ionics. Soaking over a weekend sounds like a good idea, though I may still need to cut the board down to fit our Kapak bag size. And get our silicone coating off the surface. K
Electronics Forum | Wed Sep 27 19:57:41 EDT 2000 | Dave F
Our display suppliers provide displays either with: * Molded plastic cover that we recycle to them * Plastic film like the guys that change your oil put on your wind shield to remind you when to get your oil changed.
Electronics Forum | Wed Jun 29 17:18:41 EDT 2005 | GS*
Very interesting tread, many thanks to all. Matt please, now what does it mean for you? Will your custmer accept dull solder joints or will the plating be changed ? (ie. HASL, ENIG, etc) Tnks and regards GS*
Electronics Forum | Thu Feb 22 13:50:18 EST 2024 | erikfriesen
Thank you, there are a few more things in that service manual than I have. Really what I was looking for, and didn't find, is there any type of comp table for the ballscrew on these machines?
Electronics Forum | Thu Mar 28 20:06:53 EDT 2024 | cbeneat
What type head is it? Try changing the internal filters. If it is a low number head, ie: 1-4 on an 8, 1-6 on a 12 or 1-8 on a 16. These can be accessed by pushing the head to the opposite table for removal. Chapter 11, section 11-6 page 11-6.3 in mai
winsouce.jpg)
