Electronics Forum | Wed Oct 09 08:57:43 EDT 2002 | russ
You want to make sure that you fluxer is completely purged of the previous flux prior to starting. Other than that switching is no issue. Russ
Electronics Forum | Wed Oct 09 12:24:11 EDT 2002 | dphilbrick
Why not go to VOC free flux. It is a water based no clean. Clean it when you need to and leave it when you don't have to clean. We have used it for several years. We do Military and Commercial - passes for all so far.
Electronics Forum | Wed Oct 09 12:29:14 EDT 2002 | ppcbs
We have been encountering black pad contamination on gold plated boards mainly affecting BGA components during assembly. This problem has been noticed with many of our customers that are using an array of fab vendors. Does anyone have a solution fo
Electronics Forum | Wed Oct 23 22:16:42 EDT 2002 | peterson
Hello everyone. Can someone please tell me if there are problems using No Clean solder for SMT and then using WS Flux with our Wave process? We are aquaeous cleaning after...but are there other cross-contamination issues? THANKS!!!
Electronics Forum | Fri Jan 03 19:17:12 EST 2003 | Mike Konrad
Hi Richard My experience with R.O.S.E. testers has been positive with regard to detecting ionic contamination (even exceptionally low levels). As previously mentioned, a good R.O.S.E tester will be able to detect minuet levels of ionic contaminatio
Electronics Forum | Tue Mar 11 09:44:40 EST 2003 | pjc
Check with your state EPA on disposal of lead contaminated equipment. Or, your local Sanford & Son can handle it.
Electronics Forum | Tue Apr 01 19:45:48 EST 2003 | mk
Try checking into ssd www.sipad.com No clean process for the whole board. Contamination from paste is removed before you get the boards. http://www.sipad.com/Motorola/MotorolaFlipChip.htm mkehoe@sipad.net
Electronics Forum | Tue Apr 01 19:36:02 EST 2003 | iman
from my humble experience : 1) check if there is nickle contaminate in the gold bath? shd have report data from the PCB fab house. 2) check if your production did 48hr bake at 125degC, IF the BGA did not come in its "original" MSD cozy packaging.
Electronics Forum | Fri Apr 04 05:04:49 EST 2003 | iman
10Mohm DI washing. On the paste supplier recommendation, we sent sampling boards for Ionic Contamination test with specs
Electronics Forum | Tue Apr 22 13:32:23 EDT 2003 | swagner
Does anyone have any data pertaining to contaminates baking out of a fiberglass resin pallets used for processing flex circuits? If so does this phenomena increase over time? Thanks,
