Electronics Forum | Tue Aug 31 17:36:36 EDT 2004 | davef
NO-LEAD COMPONENTS WITH LEAD SOLDER ISSUE: We agree with Russ. We've dicussed this several times on SMTnet. For instance, look here http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=25394 LEAD COMPONENTS WITH NO-LEAD SOLDER ISSUE: We disa
Electronics Forum | Mon Nov 27 17:47:23 EST 2000 | Dave F
Gyver: Lemme take a wack [if you�ll excuse the expression, given direction of the later discussion] at your questions. Q1. Will the baking of BGA or PCB cause more oxidation before the SMT process? A1. It certainly will not cause less oxidation,
Electronics Forum | Wed Apr 29 04:57:08 EDT 2009 | davepick
It depends on the application what will be considered the biggest issue to avoid (production or longterm reliability). Tin Whiskers are bit of an unknown quantity - but a more realistic problem could be dendritic growth / electromigration forming sho
Electronics Forum | Mon Jun 30 08:55:31 EDT 2008 | davef
It will be tough to find a dimensional thickness specification for HASL. IPC-6012 Table 3-2, line "Fused tin-lead or solder coat - Coverage and Solderable" states the requirement that there has to be complete coverage of solder on the land, and it mu
Electronics Forum | Fri Mar 26 15:48:31 EDT 2021 | grahamcooper22
Leaded HASL on small pads can be quite difficult to print on...the HASL tends to be domed rather than flat..and that can affect print quality...you really need a perfectly flat pcb pad to print paste on when you are assembling 0.5mm QFPs. If the pcb
Electronics Forum | Mon Jul 31 14:28:58 EDT 2017 | ks0707
Hi Evtimov and Phil, May I ask you how programming is accomplished at your side ? Do you have specific programmers dedicated to each P&P, AOI, Flying Probe, and Conformal coating machines ? Or one programmer handles programming for all machines per
Electronics Forum | Thu Jun 06 09:45:14 EDT 2002 | Hussman69
We based ours on the type of paste we use (stencil life) and not so much the machine. Then we coupled that to what 'true' conditions we normally see in our plant, and determined that under these conditions Max & min) our printing process should be g
Electronics Forum | Thu Nov 10 23:09:45 EST 2005 | davef
Poured flooring suppliers are: * Garland Floor http://www.garlandfloor.com * Sauereisen http://www.sauereisen.com/c_prod/c_esd.htm Vinyl & rubber flooring suppliers are: * VPI http://www.vpiflooring.com/products.php?cat=2⊂=1 * 3M http://products3
Electronics Forum | Mon Apr 19 21:37:17 EDT 2021 | ouaret
dear all, update: we got that the calibration of SIM is the problem, the distance between SIMs need to be calibrated. can someone help us get the manual that describe on how to calibrate the SIMs? we have a problem with our cyberoptics AOI machine
Electronics Forum | Wed May 06 10:20:21 EDT 1998 | SMT-ASSY
Good morning, We would like to offer our services. SMT-ASSY is a training facility (Located in Dorval, Montreal area) which can introduce your workforce to SMT and the workmanship required to obtain quality products. We have attached our brochure in
