Electronics Forum | Wed May 28 11:56:18 EDT 2003 | blnorman
Yes we are using "silicones", but to find this contaminant we were looking for "silicon" the element by SEM/EDS. We use Dow materials and my contact there is checking to see if they have any info.
Electronics Forum | Mon Jun 02 04:17:39 EDT 2003 | emeto
Hi Steve, Why are you so concerned about QFP(0.4) or BGA? If your equipment can manage, what's the difference? If you are designer do it better and use the cheaper or smaller package(you decide). If not use machine with vision recognition and your pr
Electronics Forum | Mon Aug 02 11:21:29 EDT 2004 | sforman1
Use MicroCoat Technologies UV cure solder mask. will leave PCB absolutely clean. used in many PCB solder/wirebonding apps. http://www.m-coat.com
Electronics Forum | Wed Jun 25 11:53:01 EDT 2003 | gmurray
Does anyone have a listing of recommended usage requirements on SMT components. Can you use SMT resistors which are over 3 years old for example ? Can you use ICs which are not known to be moisture sensitive but which are over 5 years old.
Electronics Forum | Tue Jul 15 10:01:15 EDT 2003 | davef
We don't use Sn50, but if we did, we'd use our paste supplier's recommendation as the starting point for developing our reflow recipe.
Electronics Forum | Tue Jul 29 17:56:45 EDT 2003 | Bill Petlock
Brad, I sell both machines on the used market. If you buy the proper oven for your use you should be very happy with either. Both companies are very reputible and responsive when you have problems.
Electronics Forum | Tue Aug 05 03:22:48 EDT 2003 | emeto
Hi, Does anyone knows what's the rate for used materials for making soloder pastes? I found some charts, but they are old. I'm interested is leadfree already the most used and should I change my paste?
Electronics Forum | Wed Aug 20 16:36:11 EDT 2003 | stefwitt
For the first time, I was asked to pay tax on a used machine. The machine comes from a reputable manufacturer and I do not doubt their integrity. I asked my accountant (who has many titles in front of his name) and asked for a tax exempt number and
Electronics Forum | Fri Aug 22 09:44:45 EDT 2003 | davef
Kenny: Since you need to use water soluable flux and can't use no-clean, consider asking your board fabricator to plug the via.
Electronics Forum | Tue Aug 26 11:15:47 EDT 2003 | blnorman
We use HTN (high temperature nylon - Zytel) connectors in our reflow ovens with no warping, bubbling, or cracking. You can also use PPA (Amodel).
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