Electronics Forum | Fri Jan 11 00:32:16 EST 2008 | johnlee9210
Prior to packing the boards, we cover the marking on the IC by dispensing epoxy on top it. This is a way to protect our design so no one can copy it. We have a lot of boards and the optr takes a long time doing it manually. im thinking of using a pne
Electronics Forum | Mon Jan 14 23:02:52 EST 2008 | davef
You don't mention any particular IC or manufacturer or marking method. However, most IC marking is done with lasers these days. The laser actually alters the encapsulation so the only way to erase the marking is to remove the encapsulation. Otherwise
Electronics Forum | Wed Jan 23 18:15:33 EST 2008 | gsala
Hi, are you dealing with Leaded or Lead Free P-BGA ? soldering by Lead or Lead Free paste ? Any way, some time, bridges can be caused by moisture entrapped in the BGA body. Make sure if is respected the correct MSL's allowed flore exposure time, ot
Electronics Forum | Fri Jan 18 11:20:11 EST 2008 | mulder0990
I was wondering if anyone knew of any good portable stencil solutions. I am looking for a rolling cabinet that can house 20 stencils without a huge footprint. I also need the cart/cabinet to be closed off(doors or otherwise) so customers do not see
Electronics Forum | Fri Jan 18 18:19:38 EST 2008 | arun2382
Is normal DI rinse cycle enough to wash away all residue after SMT assembly of high density substrate? This substrate would later be over molded to form MCM module package and I am seeing delamination in high density areas of the substrate at MSL3
Electronics Forum | Tue Jan 29 13:51:24 EST 2008 | bbarton
Dave F....BOGUS BOGUS BOGUS What compatability issue could there possibly be if the flux is removed during wash???? Why on EARTH would you leave ANY WS flux residue on the board? A recipie for disaster! Beef up the cleaning process, test for contami
Electronics Forum | Fri Jan 25 11:49:09 EST 2008 | toddl
Hi all, I have an inconsistent situation. Lately, we seem to have excessive dross buildup in the solder pot which inturn causes the pot to overflow. Has anyone had a similar experience? Here are the details: age of machine= 9 years, flux used= Kester
Electronics Forum | Tue Jan 29 15:05:29 EST 2008 | slthomas
This is kind of a rehash/status update request, but anyway here goes...is there any way we can have "item location" or some such criteria added to the advanced search for filtering? That way I can eliminate the 3 pages of Juki spare parts being sold
Electronics Forum | Thu Feb 07 05:24:16 EST 2008 | muarty
I would advise that you clean the stencil thoroughly at least every 4 hours, also though it is worth cleaning the stencil top and bottom after any breaktimes. To avoid solder paste drying off in stencil apertures. Best piece of kit I've purchased was
Electronics Forum | Thu Jan 31 08:34:58 EST 2008 | tonyamenson
In some cases it's just cheaper to get tubes and we dont need excessive inventory because we are not a big job shop. Either way though we have to deal with tubes for now. Are the belt feeders still a good alternative option in todays market? I've n
