Electronics Forum | Tue Jul 01 08:50:08 EDT 2003 | davef
ESD Association regional sites. For instance: * http://www.esdnw.org/asktheexperts.htm * http://www.esdsiva.org/ * http://www.centxesdassoc.homestead.com/ ESD protection supply providers. For instance: * http://www.desco.com/askEsd.htm * http:
Electronics Forum | Fri Aug 08 15:30:50 EDT 2003 | bman
Hello all, I'm working at a CM with less then ideal material storage shelving when it comes to ESD protection. I've got ordinary painted shelving units that I need make ESD safe. I'm considering dissipative mats or spray coatings for each shelf, t
Electronics Forum | Fri Aug 15 01:31:17 EDT 2003 | Jay
Hi All, I work for a contract manufacturing and we are having a new PCB to build. The PCB has OSP coating on it and it has been sitting open in the production floor for about 15 days. I am not sure weather it will affect the soldering process or not
Electronics Forum | Tue Sep 09 15:22:39 EDT 2003 | gdstanton
Anyone have any experience with immersion white tin over copper plating? We are seeing opens develop under BGAs after we bake and conformal coat. And when we lift the parts the pads are 60% of the original size. Need some advice on possible causes
Electronics Forum | Mon Oct 06 17:16:02 EDT 2003 | pjc
Yes, the OmegaMeter and IonoGraph are test equipment to measure ionic contamination. Either of those units should enable you to sort your inventory boards. for more info about this equipment, go to: www.cooksonee.com/products/scs/CoatingSystems/Ionic
Electronics Forum | Thu Dec 04 20:05:33 EST 2003 | davef
Buy a used, refurbished batch cleaner from a reputable equipment supplier. * Ultrasonics can damage some electronic components. * Spray washers are good. * Mike Konrad, our resident saponifier guru, posted to a previous thread, commenting on dish was
Electronics Forum | Mon Mar 08 11:54:06 EST 2004 | Wayne Smith
Currently experiencing a problem where the plastic molded bodies of tantalum capacitors are cracking during my SMT processing. Caught after our conformal coating process. I don't know where in the process they cracked. Currently running an exper
Electronics Forum | Sun May 02 16:57:09 EDT 2004 | davef
You're correct. We prefer to probe solder, rather than copper, because the solder absorbs the impact of the probe better than copper and so, helps preserve the life of the probe. Beyond that, OSP has a limited "shelf life". If the OSP is not coate
Electronics Forum | Mon Jul 26 06:53:08 EDT 2004 | teilo
We manufacture conversion kits for lead free wave solder machines. We recommend that all component parts be manufactured from grade 1 / 2 Titanium which is far superior to any coatings applied to stainless steel and not as expensive as people think.
Electronics Forum | Fri Aug 27 04:51:43 EDT 2004 | rose
I suggest you to do some EDX ananlysis or maping and make a comparsion between the delam part and the good one. maybe some contamination or element used in the board manufacturing process stayed under the coating layer. If there is some difference be
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