Electronics Forum | Tue Feb 06 21:43:11 EST 2007 | Wayne
If it is instructed to ship lead free product to customer, then low temp lead free solder paste can be considered. For example, Viromet solder paste from Singapore Asahi (peak temp is between 220 to 225 degree C).
Electronics Forum | Wed Feb 07 15:18:16 EST 2007 | dphilbrick
Tintronics in Huntsville AL can do this. PS I use them all the time for various services. I have no affiliation with them other than being a customer.
Electronics Forum | Thu Feb 08 08:15:28 EST 2007 | tjcrume
I have received 10 customer returns for a cold solder joint on 1 lead of a 36 pin IC. Everytime it is on the #18 pin. The process is reflow and I can't figure out why the one leg is cold and the other legs look OK.
Electronics Forum | Mon Feb 12 10:28:49 EST 2007 | davef
CK the Flip Guy You're correct. Some profiler suppliers include a Cp, Cpk calculatoromiter with their very nice units.
Electronics Forum | Mon Feb 12 12:52:48 EST 2007 | stepheniii
Would their calculatoromiters set off my BS detector? It's quite sensitive with things like Cp,Cpk and use of statistics. Or are they actually genuinely usefull?
Electronics Forum | Mon Feb 12 15:32:10 EST 2007 | davef
stepheniii Unsure how they determine that the process is stable and in control, a prerequisite to calculating Cp, Cpk. A trained chimp smoking a cigar could calculate Cp, Cpk.
Electronics Forum | Thu Feb 15 12:32:14 EST 2007 | Eric D
one of my customer areworried about the flux risidue in the blind vias, or if the plug the vias and there is air trapped the plug will blow during our process. Appreciate for your response
Electronics Forum | Tue Feb 27 00:40:35 EST 2007 | ivap
We are into PCB testing and one of our customers has expensive foreign equipments whose warranty period has expired. He is looking to have them repaired locally. We found most of the problems are with the PCBs.
Electronics Forum | Mon Mar 12 18:20:07 EDT 2007 | davef
You should tell your customer that they're very nice people, but the purpose of RF shields is reduce RF emissions, not to be a air or gas tight enclosure. The requirements of hermeticity are wholly different than those of RF shielding. Do they want
Electronics Forum | Mon Mar 19 07:59:52 EDT 2007 | realchunks
Hi Chrissie, Can you add breakaways to your baord? If you have all 4 sides with components then you'll probably need custome carriers.
