Electronics Forum: wire bonding on ceramic pcb (Page 1 of 2)

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

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

aluminium wire bonding on Electroless Nickel + Immersion gold

Electronics Forum | Fri Aug 17 01:40:55 EDT 2001 | V.RAMANAND KINI

We are in the watch & clock Business. We have a Watch IC chip that has to be wirebonded using Ultrasonic aluminium wedge bonder. The wire dia is 1.25mil. The PCB is made of G10 Glass epoxy copper clad laminate. The copper thickness is 18 microns. The

soldering and bonding on gold PCB's

Electronics Forum | Wed Jan 09 21:19:49 EST 2002 | davef

When I said "In this area, there is no difference between your experience in ceramic substrates and PTFE substrates." I was referring to the area we were discussing ... gold plating. I am sorry if you thought I ment than the wire bonding process wa

soldering and bonding on gold PCB's

Electronics Forum | Mon Jan 07 20:37:15 EST 2002 | davef

For soldered areas, we like to keep gold thickness substantially below the maximum you propose. Search the fine SMTnet Archives for our discussions on the topic of acceptable levels of gold with solder connections. Let�s fix this �no one seems be s

soldering and bonding on gold PCB's

Electronics Forum | Wed Jan 09 12:20:00 EST 2002 | mregalia

Thanks for cluing me into IPC-2221. Though the numbers they give seem to contradict what I have learned from people working with the materials. At least I now know where the guideline for a max of 30 microinches of gold for soldering comes from. But

Wire bonding on gold fingers

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

Wire bonding on gold fingers

Electronics Forum | Tue Jul 01 17:38:24 EDT 2003 | jartman

I've faced this several times in the past, and the only real solution is to wirebond before SMT assembly. Everything leaves a residue, and trying to clean a residue off later is basically hopeless. This may require some trickery in your SMT process

soldering and bonding on gold PCB's

Electronics Forum | Wed Jan 09 17:14:48 EST 2002 | mregalia

Do you bond with Al or gold wire? What happens if the Ni is over 150 microinches? Thickness of nickel is one those things that we have not been consistent with. The industry seems to pretty much universally call for 100-200 microinches. Our old board

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