Electronics Forum | Sun Aug 08 11:15:32 EDT 1999 | Earl Moon
| | Mike, | | | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no goo
Electronics Forum | Tue Oct 10 13:32:26 EDT 2006 | rsteele
Does anyone know of any tests or testing done on the peel strength of components to pads. I have alot of info on FAB level peel strength testing, but nothing on components themselves. Is there any process(es) to test and insure new pastes and reflo
Electronics Forum | Tue Feb 20 15:39:31 EST 2001 | fmonette
To my knowledge, the 40C was established as the maximum "safe temperature" for all tape and reel packaging. The actual specs may vary somewhat for different types of reel, pocket-tape, cover-tape but you must be concerned with the cover tape adhesive
Electronics Forum | Tue May 08 13:39:27 EDT 2001 | genny
Thank you for your response. I have been told that x-ray strength is finding solder volume and pattern root cause defects, and will catch a high % of them - opens, shorts, insufficient solder, and missing components(shape of solder on pad w/o lead i
Electronics Forum | Thu Jan 18 21:52:24 EST 2001 | arul2000
>>>>Dave, The BGA substrate surface finish is NiAu, while the PCBA pad surface is HASL. The solder ball composition is SnPb 63/37 and the solder paste used on the PCBA is also the same but with 2% Silver.>>> Dave, sorry I don't have the picture with
Electronics Forum | Wed Feb 25 08:34:00 EST 1998 | Earl Moon
CERAMIC CIRCUITRY Starting with hybrid thick film circuits in 1965 at Sperry Flight Systems, I have been involved with ceramics (usually aluminum oxide) as the substrate material. Then, we developed "multilayer" circuitry (replacing "cordwood" module
Electronics Forum | Wed Feb 25 08:30:44 EST 1998 | Earl Moon
| Happy Holidays All, | I am searching out a vendor (US preferred) who can fabricate a ceramic PCb with etremely fine lines. | Please reply if you are a vendor, or know of one. | Thanks, | Wendy CERAMIC CIRCUITRY Starting with hybrid thick film circ
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