Electronics Forum: wire bond ceramic pcb (Page 1 of 7)

COB and wire bond

Electronics Forum | Mon Jun 03 12:51:17 EDT 2002 | V.RAMANAND KINI

We are doing COB operations for nearly ten years. Pls. write to me if you need info on m/c selection, type of PCB, plating etc., Thanks V.RAMANAND KINI...03.06.02

COB and wire bond

Electronics Forum | Mon May 07 11:02:17 EDT 2001 | Singh

Hi all. I am looking into the implementation of the Chip on Board process with eutactic bonding and the then using either gold or aluminum wire to make wedge type wire bonding. Since I am totally new to this, can somebody guide me thru the process,

gold wire bonding

Electronics Forum | Wed Dec 28 16:03:53 EST 2005 | Chris

I have lots of experience with thermosonic gold ball bonding. You can read the literature and you will probably find some papers that say you can do it. I have never been able to do it. We gold ball bond all day long with little problems at all bu

gold wire bonding

Electronics Forum | Thu Dec 29 03:57:16 EST 2005 | sparrow

Hello Chris, To be honest, it's hard to believe you could not bond to ENIG at all. Yes, the gold layer is thin and hard, but it just narrows the process window and does not make the bonding impossible. I say this, because we have been using TS gold w

Plating for aluminum wire bonding

Electronics Forum | Sat Mar 15 20:24:13 EST 2003 | ramanandkini

Thanks Mr.Dave. Sorry for the delay. One of our major prolems in ENIG plated surface is that wire does not stick. For many years we were getting a bond strength of 14 grams in both ENIG and electroplated surfaces. Now one vendor supplies ENIG boards

Aluminum wire bonding on ENEPIG plated PCB

Electronics Forum | Tue Sep 10 10:42:36 EDT 2013 | capse

Plasma cleaning is used extensively to clean surfaces prior to wire bonding.

Aluminum wire bonding on ENEPIG plated PCB

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

Contaminants after SMT which affect wire bonding

Electronics Forum | Thu Oct 05 07:23:34 EDT 2006 | Chris

Hi all experts, I have no background about PCB or SMT process. I am now encountering some issues after SMT - Unstable stitch bonding condition. I am now suspecting some contaminants remain on lead after cleaning. Therefore, how can I check th

Aluminum wire bonding on ENEPIG plated PCB

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

High Freq. RF grade ceramic filled PTFE PCB material

Electronics Forum | Fri May 25 08:06:19 EDT 2007 | davef

Soldering PTFE boards * Exposure to the high temperatures needed for solder reflow poses no problem of loss of peel strength since the exposure times are relatively short. * There are many different types of PTFE based products that may perform diff

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