Electronics Forum | Thu Apr 17 07:51:19 EDT 2014 | emeto
Opens are on the device to the PCB - mainly on the edges, that makes me think I get some kind of warping,but even if I bake parts and boards doesn't help. We also tried different reflow profiles - same results. I hear that some people use dip fluxers
Electronics Forum | Wed Apr 30 11:28:38 EDT 2014 | nhubble
If you still are considering these PoP opens a possible warpage issue I might be able to help. I work for a company that measures warpage during heating (Akrometrix). I'll try and send you a message with details. I would be curious to hear if this
Electronics Forum | Tue Aug 31 13:54:50 EDT 1999 | David Spilker
Do any SMTneters out there have a good solution to substitute SMT parts that you are willing to share? I presume all of us have the issue where purchasing wants to buy "the same part" from a different vendor. While the part may be the same electrical
Electronics Forum | Thu Jul 11 21:30:02 EDT 2002 | lysik
(Serveral landmark lawsuits) One example comes from a lawsuit that involved the copy machine industry. A third party copy machine rebuilding company brought a large copy machine manufacturer to the highest court because they would not sell parts to t
Electronics Forum | Mon Jun 08 19:29:53 EDT 1998 | Eric Jenkins
Looking for used 2 used peel force testers, and used SMT parts counters also. Please call me 1 801-956-0897 or email. Eric Jenkins
Electronics Forum | Thu Jul 11 15:15:23 EDT 2002 | dougt
Just curious....... Where did you find this 7 year support rule? I always thought it was 10 (maybe thats only with auto parts, my truck is in its teens and the dealer will only go back 10 years for me). Just curious where this rule is so I know whe
Electronics Forum | Thu Jul 24 22:37:06 EDT 2008 | davef
As part of the IPC-4552 specification testing, they ran ENIG at 2 uinches for 1.5 million cycles for a membrane-type keypad application [there was no testing for the wiping-type switches]. They stopped testing when the membrane began breaking down. T
Electronics Forum | Mon Oct 09 13:36:30 EDT 2006 | ppminc
Phil, The QSA-30 was built by Sam Sung, Sold by Quad. Single Head 2 Nozzles around 11K CPH Quad does not support the machine but I believe you can get parts direct from Sam Sung. I am not sure if they have a registration fee. The QSA used Quad made
Electronics Forum | Tue Oct 10 15:14:43 EDT 2006 | mfoster
Hi Phil, Most parts are still available for the Quad/Samsung QSA-30, through Dynatech (in North America). It is actually a single gantry, 3 spindle machine with rated speed of 14,000 cph. As with any used machine, it could be a great deal or a not
Electronics Forum | Thu Jul 24 22:58:13 EDT 2008 | davef
At the 2004 IMAPS Nordic Conference, Claus W�rtz Nielsson from Nokia Mobile Phones published "The Evolution of Surface Finishes in Mobile Phone Applications" [www.imaps.org/adv_micro/papers/Nordic2004paper.pdf]. Some of the results were: * Corrosion
