Electronics Forum | Mon Nov 19 20:15:39 EST 2001 | davef
Now, that is one thickass board!!! The rant first: If our �board supplier changed our board surface finish on� anything without our approval, the board supplier would be an �X�. Life has enough surprises. And of all the flat finishes available, h
Electronics Forum | Thu Aug 31 18:59:55 EDT 2000 | Brian W.
Our customers use OSP, HASL, immersion tin and immersion gold as board finishes. If I recommend a finish to the customer, it is one of the immersion finishes or OSP. Those finishes have the advantage of a flat surface to deposit paste. HASL has va
Electronics Forum | Tue Mar 20 20:12:32 EST 2001 | davef
In response to a similar question Dennis Fritz [DDFRITZ@AOL.COM] Chair of the Alternate Final Finishes Committee of IPC (5-23d) said ... The Alternate Final Finishes Committee of IPC (5-23d) has nearly completed a round robin "conditioning" study of
Electronics Forum | Mon Apr 23 17:30:08 EDT 2001 | davef
Step 1: Print paste on the board, skip placement, reflow the board, check solderability. Step 2: Goto Step 1. White Tin Solderability: The most common reason for solderability issues with the white tin surface coating during multiple thermal excur
Electronics Forum | Tue Oct 05 18:37:19 EDT 1999 | Morris
| I hope that someone can help me with my problem! I am experiencing a lot of glued on parts falling off in the wave solder machine. A little information about my process: 1)We use Loctite 3609 glue that is used up long before its shelf life 2)Our
Electronics Forum | Wed Oct 06 08:55:23 EDT 1999 | Brian Conner
| | I hope that someone can help me with my problem! I am experiencing a lot of glued on parts falling off in the wave solder machine. A little information about my process: 1)We use Loctite 3609 glue that is used up long before its shelf life 2)Ou
Electronics Forum | Wed Oct 06 11:58:33 EDT 1999 | Wolfgang Busko
| | | I hope that someone can help me with my problem! I am experiencing a lot of glued on parts falling off in the wave solder machine. A little information about my process: 1)We use Loctite 3609 glue that is used up long before its shelf life 2)
Electronics Forum | Thu Oct 07 06:02:38 EDT 1999 | Wolfgang Busko
| | | | I hope that someone can help me with my problem! I am experiencing a lot of glued on parts falling off in the wave solder machine. A little information about my process: 1)We use Loctite 3609 glue that is used up long before its shelf life
Electronics Forum | Fri Jun 18 14:07:50 EDT 1999 | Earl Moon
| | Now don't everyone jump on this at once, but it seems time for me to send out copies of my not even close to being dated copy of an article about HASL. Though it was published in 1992, in Printed Circuit Fabrication Magazine, and it got rave revi
Electronics Forum | Tue Jan 12 14:59:14 EST 1999 | Earl Moon
| What would be a good metric for process control of a stencil printer? (fully automatic, vision equipped, stendil printer). | I'm doing some more DEK 265 GSX's with everything imaginable hung on them. Have done Lt's and the MPM2000. This makes mach
