Electronics Forum | Sat Oct 24 23:30:59 EDT 1998 | Pete Sorenson
| I know that this not surface mount, but many of us have to perform multipule duties. Can anyone give me some information on this I am having problems getting relibility | getingthe heat seal ribbon to make consistant electrical contact. | Any help
Electronics Forum | Wed Feb 10 16:51:01 EST 2010 | flipit
Anyone using ENEPIG electroless nickel electroless palladium immersion gold? Am currently using selectively plated gold 25 micro inches in combo SMT/COB gold ball bonded product. Gold cost has increased over the years. Palladium cost is much lower
Electronics Forum | Tue Sep 10 10:42:36 EDT 2013 | capse
Plasma cleaning is used extensively to clean surfaces prior to wire bonding.
Electronics Forum | Mon Sep 09 15:38:02 EDT 2013 | arendonk
Hi, We are having issues aluminum wirebonding on ENEPIG plated PCB by a too low pull force and or having lifts (1% range). Could any body advice how to solve this problem? Is there a special wire bond grade required? How to best clean contaminant
Electronics Forum | Mon Sep 09 18:10:35 EDT 2013 | davef
I don't know, but here is a link to a paper from the fine SMTnet Technical Library on a similar topic: http://www.smtnet.com/library/files/upload/Wire-Bonding-and-Soldering-on-Enepig.pdf Contact the authors and ask for their advice and help. BR, d
Electronics Forum | Fri Feb 12 05:53:32 EST 2010 | muarty
Hi Flipit, One of our customers has recently changed to this type of finish on their PCB's, due to them wire bonding MMIC devices in their factory after we do the SMT build. We found that we had to change all of our stencils for these products, as t
Electronics Forum | Tue Aug 21 05:05:52 EDT 2007 | vangogh
Hi All, I would like to get some inputs regarding this.... I have bare PCB which were stored with kapton tape attached on the Au plated pads. These were stored for close to a year. Upon removal of kapton tape, we noticed discolorations on the edges o
Electronics Forum | Sun Nov 30 08:53:15 EST 2003 | davef
IPC-6012A finds "circuit repairs" as acceptable in Class 1, 2, and 3 only "As agreed by user and supplier." So, it is your call, basically. Generally these repairs, if done properly, are reliable. See IPC-7721, 5.2.3, for conductor repair by welding
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