Electronics Forum | Tue Nov 11 16:07:52 EST 2003 | johnwnz
Folks, has anyone heard fo any problems with RF cards related to solder paste selection. Currently runnign with std SnPb paste but want to move to 2% silver paste. Was asked if this could cause any issues in term's of RF capability or interferance t
Electronics Forum | Wed Nov 12 08:35:16 EST 2003 | davef
2% should have no effect [recognizing that some RF deign implementations are squirrellyand they don't count]. We still use 2% dating back to the old days when the gray beards [at that time] felt that the silver improved skin effect [a tendency for a
Electronics Forum | Mon Dec 01 12:33:20 EST 2003 | frank
I see where I went wrong. The numbers provided by "Process Engineer" are correct. My company is trying to adhere to the Six Sigma code of business and the managament here falsely assumed that all of our equipment can do that as well. After doubl
Electronics Forum | Mon Dec 01 15:16:58 EST 2003 | davef
So, you need to know how these reductions in solder volume will perform in real life. In-use of the product in the life environment is the surest test. Many companies can�t wait / don�t want to pay for that information. * Some use accelerated life
Electronics Forum | Wed Dec 17 17:57:51 EST 2003 | davef
9. * Conversion coatings are very nice "paints" that allow other paints to stick to aluminum. Type 1 coatings are thicker than Type 3, which are whisper thin. Alodine 120X (Amchem) and Iridite 14-2 (Allied Research Products) are good conversion coa
Electronics Forum | Fri Jan 16 14:24:11 EST 2004 | dwoodrow
We would like to start testing our lead free wave solder machines in house. Mostly looking for lead and copper content. Malcom makes a relatively inexpensive machine that does this (STA-1 http://www.malcomtech.com/products_sta1.html). Does anyone
Electronics Forum | Tue Jan 20 16:27:34 EST 2004 | pjc
have a look at these: http://www.necoa.com/products/apex-c2-s.shtml http://www.mta.ch/download/SOUDAGE_ANG.PDF http://www.jusmech.com http://www.chiphua.com/robot.html http://www.jmax.co.jp/e_ntx811.html http://www.horiuchielectronics.co.jp/e
Electronics Forum | Mon Jan 26 07:27:43 EST 2004 | loz
I have a product that has earthing/positioning holes, as they are to be used for earthing purposes they need to be free from conformal coating. This pcb is double sided. I have used spot/peelable mask to protect these holes. However when the conforma
Electronics Forum | Tue Jan 27 20:03:11 EST 2004 | davef
Consider contacting other university SMT laboratories. Among them are: * Purdue University * Georgia Tech * SUNY Binghamton Actually, you really don't care what the machines do. You care about, 'Which companies will donate machines' [even if they'
Electronics Forum | Wed Jan 28 23:23:24 EST 2004 | Dean
Any University that teaches with Mydata or Contact probably isn't worth your time. And with the increases in admissions I cant see why any University worth its salt would use such "rudimentary equations". How about cancling the football and basketb
