Electronics Forum | Sat May 09 11:46:43 EDT 1998 | Bob Willis
The first thing is all the TSOP suppliers like Intel do not rate the parts at normal temperature used in wave soldering. The spec is less than 230C so you have the reliability issue to consider and no one to blame when they do not work. You also have
Electronics Forum | Mon Feb 11 20:07:46 EST 2002 | caldon
Stephano- There is a Chemical process to revert the contamination back to its original form. The EMPF Developed it back a few years ago in conjunction with Rockwell and some others. Please contact ACI at 610-362-1200 and ask for Dr. Greg Parks. This
Electronics Forum | Tue Mar 19 14:23:44 EST 2002 | caldon
PETE - Since you are local to ACI/EMPF you can take a run over there and speak with Greg Parks,PhD on ROSA. His phone number is 610-362-1200 x 267 or email gparks@aciusa.org. This method is much better than the "re tinning". They can actually revert
Electronics Forum | Tue Jul 02 10:22:17 EDT 2002 | gwaco
Thanks brian, we do use "shape origin". Yet the connectors need constant tweaking. There is no slippage from the nozzle either. So what you are saying its possible that the designers may be using unicam center and we are using shape center? Is it pos
Electronics Forum | Fri Oct 04 10:05:50 EDT 2002 | gdstanton
Does anyone out there know of a good book which outlines some rules, guidelines, or techniques that can be used to assure a good SMT board design/layout with tight control of EMI emissions? We've been paying some rediculous consulting fees to help f
Electronics Forum | Fri Mar 07 14:48:34 EST 2003 | gdstanton
Pretty much everything under the sun. For example if Company A wanted to hire Company B to build printed circuit cards designed by Company A; What type of T & C might Company B seek in their contract/agreement with Company A? The following things c
Electronics Forum | Fri Feb 06 12:37:58 EST 2004 | stockley
Yaaa...wn...hh...hmmm... Sorry SMTNetfellows I just woke up from my nap. Maybe it's just me but I'm getting a little tired of people badmouthing Contact Systems - so Barney, Bobby, Ron or whatever your name is... quit it... I'm bored with this topic
Electronics Forum | Wed Feb 11 05:48:10 EST 2004 | iva
Hello Greg, Have you ever seen an Essemtec in a real production run? I have. But actually placing BGA, MicroBGA with their Cyber optics laser alignment? Or with the supplementary camera (I think it was with a VGA resolution)? Well, that�s something
Electronics Forum | Fri Jul 23 04:27:59 EDT 2004 | greg york
Many trials conducted so far from single sided to Mixed technology dual wave with our LFB227/S 0.3Ag silver Lead free. Results are excellent, some say better than 63/37. One continueing problem though is the age old area of undercured resist and runn
Electronics Forum | Wed Aug 11 07:41:52 EDT 2004 | gregoryyork
Check cure of solder resist. Use a No clean low solids rosin flux this will stop problem. Should see almost zero solder balls if put through a single wave compared to a dual wave. If this is true then it is a resist issue and cannot 'resist' the sold
