Electronics Forum | Fri Jan 31 05:18:10 EST 2003 | reg
We have a customer who is going to be using the new Snapshot process. Has anyone used this process all ready. Who did you use to make the tooling etc. Was there any problems that arose during this process. The process involves screening balls into s
Electronics Forum | Mon Feb 03 05:02:49 EST 2003 | Eugene
Hi all. One of our customers recently asked us during an audit of our PCBA rework line if we have a limit for the total number of reworks/repairs that can be done on one PCBA. We specify 3x maximum on one location of a major part (LSI for example). B
Electronics Forum | Mon Mar 03 10:38:28 EST 2003 | davef
Electroplated nickel and electroplated gold is the more �traditional� finish for aluminum wire bonding. That surface was an extension of gold thermosonic wire bonding that requires a thick [50 thou min] gold surface. For years fabricators recommend
Electronics Forum | Mon Mar 03 11:23:04 EST 2003 | MA/NY DDave
Hi If you don't know what these puppies are, HAVE the customer specify them. You will be MUCH Safer in the long run since if you choose the wrong value they will COME Back at YOU. He might even need a network of .1 .01 Piles of places to read; Bo
Electronics Forum | Tue Mar 04 07:37:07 EST 2003 | msivigny
Hello Ryan, I'll be completely honest, I haven't seen anything on the radar scope but I haven't been tuned to ESD issues. Everything I've seen in the industry ranges from complete compliance with Class 10,000 clean rooms to questionable use of foot s
Electronics Forum | Wed Mar 05 11:54:44 EST 2003 | ruggi
Hi JFB, I think this is an unnecessary activity, but it may depend on your RH. We are in the Spokane, WA area, and the RH avg year round is about 25-30%. We have never baked our PCBs in the 9 years I've been here across 800+ varieties, including
Electronics Forum | Sun Mar 23 00:09:02 EST 2003 | MA/NY DDave
Know the specs your assembly is supposed to meet 2>Runs some lot soldering samples to minimize cost if you do decide to scrap or bake or ?? 3>Do at least a little post soldering analysis to assure yourself that the results are similar to experien
Electronics Forum | Tue Apr 01 09:36:25 EST 2003 | davef
You're correct. There is no way you can aquous clean under a low stand-off part like a LGA. Your approach seems reasonable, given your constraints. [As long as your customer is paying, what the hey!!! Give 'em what they want.] Consider joining t
Electronics Forum | Mon Apr 28 04:07:09 EDT 2003 | chrissieneale
The BGA rework process has been qualified for space flight. Which basically means someone sensible over in ESA has been replacing BGA's and life testing them. I agree the best way is to build clean boards without any mistakes, but i can honestly say
Electronics Forum | Mon Apr 28 04:18:44 EDT 2003 | chrissieneale
I think i am just going to try and rework this one board. As you can well imagine we are going to have some interesting meetings trying to get the customer to accept it. The other boards actually have replacements (of the ones that have failed, and p
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