Electronics Forum | Mon Sep 20 16:27:58 EDT 2004 | blnorman
Besides the processing tests (different print speeds, print delay times, etc.) one test we've had to use is humidity exposure. Solderballing due to high outside humidity is a problem in our plant. So we expose paste to 85% humidity for various time
Electronics Forum | Thu Jan 13 17:45:24 EST 2005 | vickt
Clark, As a start....Do you have a qualified tech on site to verify that the camera lighting is within spec? If not it's hard to say where you are starting from. I know that UIC still has trained personel that can help you out on this older gear if y
Electronics Forum | Sat Jul 01 08:45:49 EDT 2006 | johnw
Hi Guys a little late hear, The Fuji AIM machine is the prefered machine and the NXT has been qualified by 2 major Electronic CMs as the prefered machine for Europe. They are over 700 units in Eastern Europe just now.My thoughts are stick with what
Electronics Forum | Wed Oct 26 11:51:06 EDT 2005 | moonshine
Don't V score, unless you absolutely have concurrence with your QUALIFIED fab and assembly operations. Routing is best for all chip devices close to board edge. It's better and cleaner for everything when seeking quality and reliability. Visit htt
Electronics Forum | Fri Nov 04 08:10:04 EST 2005 | Amol
Hi all, If i know my field conditions and the required lifespan of the final product, how can i decide what thermal cycle to use for ATC to qualify the product?? I have the JEDEC standards for min-max temps and dwells, but how do i translate them int
Electronics Forum | Mon Mar 27 20:53:12 EST 2006 | davef
If you believe: * There is air in your paste AND * You are not whipping the air into the paste ... You should: * Return the paste to your supplier * Get it replaced * Begin qualifying a replacement supplier. One thing before you go racing off to ly
Electronics Forum | Tue Oct 31 17:36:38 EST 2006 | slthomas
In my other, better equipped life, we'd wipe them down manually w/dilute IPA then run them through the inline cleaner, nc or ws. I'd avoid US unless you've qualified your process to verify you're not damaging parts with it.
Electronics Forum | Tue Nov 07 15:08:59 EST 2006 | russ
here are my thoughts on kester, I have rec'd a sample to qualify here and we cannot even get it out of the cartridge it is so dryed out. Rep informed me that Kester has a problem with its chemistry right now. Product is Mfgr'd in off shore location
Electronics Forum | Fri Nov 17 14:55:27 EST 2006 | CK the Flip
Typical of QE types. They don't know the entire process of qualifying what makes a "good" board (besides FPY), so they just arbitrarily come up with 95% FPY as a benchmark. Russ made a great point that alot of yield issues are design-related. Typi
Electronics Forum | Fri Mar 02 11:32:06 EST 2007 | ausajid
hi thank you for your rely. i think you are right. but there may be an option. i have ask from universal people the other day. they said, they will check from their engineers/highly qualified people and than reply. let see what they suggest. thank
