Electronics Forum | Thu May 13 09:52:34 EDT 2021 | winston_one
Want to update this question a little, I know it appears few years ago, but I hope there is some updates... We have to assembly few samples of motherboards with this kind of finish (customer mistake during pcb order). Normally we can use leaded sold
Electronics Forum | Mon Nov 12 16:14:47 EST 2001 | davef
Yes!!! How can we assemble boards with 20 pitch when we allow 0.008� error to the master art? Excellent question!!! IPC-D-300G has nothing to do with assembler requirements. It is written by and for fabricators, so that they can be comfortable.
Electronics Forum | Thu May 02 07:11:10 EDT 2002 | davef
They probably the same. Most likely someone is saying immersion gold [immersion Au] as a short hand for ENIG [ Electroless Nickel - Immersion Gold]. It is very uncommon to plate gold directly on copper, because gold and copper form a brittle interm
Electronics Forum | Wed May 01 23:46:33 EDT 2002 | sohct
Are these 2 surface finishes the same? If not what is the difference? Thanks
Electronics Forum | Thu May 02 23:06:56 EDT 2002 | sohct
Hi Yannick Please sent the article "Board finishes for EMS Provider" to me as I can't find it in Circuitree. Your help is very much appreciated. Regards
Electronics Forum | Sun May 05 19:04:52 EDT 2002 | Yannick
I could send you this article but I need your email:))or write one to me at yb@m2s.ca thanks you
Electronics Forum | Thu May 02 11:34:39 EDT 2002 | Yannick
Hi, You can go to http:\\www.circuitree.com they had a supplement with the april issue of the magazine with a very good article on 4 board finish, if you are able to find it on the web site you will find all your anwser and more :)The article name
Electronics Forum | Mon Jun 17 13:45:29 EDT 2002 | genny
When the pad comes off, is it leaving behind a "black" area? Your board may be suffering from black pad - a condition that occasionally affects ENIG finish boards. It is a process control issue with your board fabricator. The nickel is oxidising b
Electronics Forum | Wed Jul 31 14:08:22 EDT 2002 | Dave G
Used this paste on ENIG boards W/O N2 and had very good results. (0402's,BGA's,16mil FP) Never had the need to use N2 with this paste on our products. Running with N2 shouldn't hurt anything. The wetting properties should get even better than they ar
Electronics Forum | Wed Apr 06 13:43:14 EDT 2011 | mosborne1
ENIG is the way you need to go. With ENIG you deposit a lot less gold. Too much gold will cause soler problems. Matt www.americancircuits.com
