Electronics Forum | Sun Sep 27 17:31:12 EDT 2009 | bandjwet
There are a couple of companies that make BGA > reballing kits. Try: Winslow Automation _a > class=roll > href="http://www.winslowautomation.com" > target="_blank"_http://www.winslowautomation.com_ > /a_ Another alternative BGA reballing kit
Electronics Forum | Wed Jul 22 21:17:55 EDT 2009 | umar
Hi SMTnet Team, I had facing a lot of feedback from my customer interm of the solder splash and solder ball, After I check my process the issues came from manual soldering process. Is any one having the same problem with me ?, any one have solution
Electronics Forum | Fri Jul 24 07:43:56 EDT 2009 | davef
Your customer is correct. You are doing something wrong in your hand soldering process. Solder balls are a process indicator. Areas to assess are: * Moisture content of the bare board * Thickness of the copper plating in the through holes * Temperatu
Electronics Forum | Thu Jul 23 15:05:16 EDT 2009 | stephan
I look for an international standard for PCB stretch . In case of misplaced solder paste versus stencil we noticed shorts after placement . I found cases where the PCB (image pattern) did not match with the stencil . It was due to PCB or stencil str
Electronics Forum | Thu Jul 23 18:32:02 EDT 2009 | fleesmtchoi
i see one company saying lewis clark company advertise win frost and sullivan award. but i find frost and sullivan award is not good award and cannot be trusted. document i find internet. http://ipvideomarket.info/report/should_you_trust_frost_&_
Electronics Forum | Wed Jul 29 07:02:50 EDT 2009 | thanhnguyen
yes i did test it manually, and it working fine.At the plug in, that the only way to plug it. With my ohm meter,24 volt present when you turn it on. The wierd thing is it blowing during head going down,then will sucking up when it move up.Vacuum valv
Electronics Forum | Tue Jul 28 13:27:31 EDT 2009 | davef
It's possible that there is limited application of "3M™ XYZ-Axis Electrically Conductive Adhesive Transfer Tape 9719" similar to your intended use. What do 3M™ application types say? Certainly high temperature soldering would make a mess of a piezoc
Electronics Forum | Fri Aug 28 06:39:29 EDT 2009 | sachu_70
I had seen such effect caused by the wave itself, where the exposed wave surface was coated by a thin dull oxide layer which then adhered to the bottom side of PCB during wave soldering. You could verify if the wave surface is clean metal when the P
Electronics Forum | Wed Jul 29 12:48:25 EDT 2009 | mikesewell
Kester R562 is listed as an ORH0, a high activity flux, not sure switching pastes would gain much. What is the finish on the leads? How old are the parts? You could have the parts reconditioned (SixSigma, Corfin, ...others) but this can get costly
Electronics Forum | Thu Jul 30 13:52:34 EDT 2009 | davef
Thoughts are: * 215-220 temperature at the leads is not real hot for leaded assembly. * It's peculiar for component leads to dewet. Sometimes non-wetting occurs along the edge of the lead where the lead is not plated. * How do the leads of a removed
