Electronics Forum | Thu Oct 08 11:33:16 EDT 2009 | cab
We are currently wirebonding MCMs with surface components located in very close proximity to wirebond pads, which are gold plated. We are ball bonding with 99.99% Au wire. Normally we do not have problems, however if product has been reflowed seve
Electronics Forum | Thu Apr 25 22:41:24 EDT 2013 | jaimebc
Evtimov, thanks for your reply. Yesterday was our first day of running 99.999%. We were running for weeks with 99.99% Nitrogen purity and we just were having all kinds of problems with the miniwave not being consistent. We had a wave offsets at 75,
Electronics Forum | Thu Apr 25 22:42:06 EDT 2013 | jaimebc
Evtimov, thanks for your reply. Yesterday was our first day of running 99.999%. We were running for weeks with 99.99% Nitrogen purity and we just were having all kinds of problems with the miniwave not being consistent. We had a wave offsets at 75,
Electronics Forum | Wed Nov 21 06:01:57 EST 2018 | premkumar_haribabu
Hi Davef, Thanks for your quick reply , just my inputs - we using 99.99 % pure nickel strip for soldeirng & when we do manual soldering this nickle stips its working well but when coming to SMT reflow even after high peak temperature ,its removes ev
Electronics Forum | Wed Jun 15 00:50:32 EDT 2005 | Frank
From my understanding: Sigma is the same as one standard deviation. So 3 sigma is the same as 3 standard deviations. It all boils down to how repeatable your machine is. Another way to look at it is the probability (or confidence) that the machin
Electronics Forum | Mon Sep 29 17:15:26 EDT 2008 | gdzuber
Hello, In a membrane generator there are almost no moving parts. So, the maintenance would be to replace the active carbon filter, and seals, about every 2~3 years. Normal life should be 10+ years. To prevent problems, the compressor must be oil-fre
Electronics Forum | Fri Mar 06 10:46:35 EST 2009 | davef
First, we agree with Loco that your QFP is nonwetting, rather than dewetting. Your sceen-shots look like ol' timey SnPb paste recipes. Turn-up the heaterometer dial. Second, on nitrogen: * We kinda think your O2 needs to be around 100ppm with 99.99%
Electronics Forum | Wed Jan 25 13:04:47 EST 2023 | proceng1
We have only had our Juki about 6 months, but it seems to be a great machine so far. For nitrogen, we have a couple generators. Minimum purity is Tin/Lead = 99.99% RoHS = 99.995% Of course five-9s is better. I do notice a difference in the LEAD F
Electronics Forum | Thu Sep 19 21:23:42 EDT 2002 | davef
I'm not saying that an eraser will necessarily work. What I'm saying is that some erasers may cause more trouble than the eliminate. Look here http://aic.stanford.edu/jaic/articles/jaic28-02-003_2.html We prefer a brand called Ruby Red. The "ole
Electronics Forum | Wed Dec 10 10:05:07 EST 2003 | davef
We do not have experience soldering to the PVD surface you plan to use. We use Titanium [Ti] stiffeners in wave soldering and our wave equipment manufacturer uses Ti fingers, nozzles, pump blades, and other parts, because solder doesn�t stick to Ti.
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