Electronics Forum: plated (Page 9 of 260)

62/36/2Ag solder paste on imersion silver plated PCBs

Electronics Forum | Tue Apr 09 05:36:27 EDT 2002 | lhudson1

Silver in the paste is present to minimise any negative effects of silver in the pcb finish or component terminations. 2% Ag prevent silver leaching thus giving a more reliable joint.

SM termination with Nickel barrier with 100% tin plated finish

Electronics Forum | Thu Nov 13 20:48:04 EST 2003 | davef

There a number of studies like this published by component fabricators. Many can be found on the net. For instance: http://www.amd.com/us-en/assets/content_type/DownloadableAssets/Pb-free_Board-level_reliability_study.pdf

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Wed Jan 26 21:30:06 EST 2000 | Dave F

Tuan: Consider Sn 96.5/Ag 3.5 or Sn10/PB88/Ag02 also. As Glenn says, you had better get rid of that gold or you will never have a shiney connection. Not that a shiney connection means anything about the quality or reliability of your soldering. M

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Thu Jan 27 14:16:14 EST 2000 | Tuan Bui

I've tried Indium NC-SMQ92(96.5Sn 3.5Ag) on these MCMs and achieved only marginal wetting on pads and parts. The good wetting is what I try to achieve, shiny is what my engineers want (Prototype environment). Does pre-cleaning the PWBs in ultrasonic

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Wed Apr 12 17:44:16 EDT 2000 | Rick

Glenn and Paul have hit the nail right on the head. Continue working with your solder vendors. I know that many people have succeeded with what you are trying. And the Pb-Free push is only making things better for you as companies develop just wha

Heat seal ribbon to gold plated fingers and lcd displays

Electronics Forum | Sat Oct 24 07:55:55 EDT 1998 | Chuck Garth

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 would

SM termination with Nickel barrier with 100% tin plated finish

Electronics Forum | Tue Nov 11 12:49:13 EST 2003 | Carol

Could you direct me to a Standard or Study that has used this termination with 67/37 tin/lead solder please? I am looking for the recommended reflow temperature requirements and reliability issues for the completed product. We are receiving this type

Re: Tinning gold plated leads ( DIP, etc)

Electronics Forum | Tue Mar 21 20:25:30 EST 2000 | Dave F

John: What�s the matter? Free gold � good thing for you, bad thing for your supplier. :^) Pre-tinning of gold plated leads is important to: � Prevent gold embrittlement of the solder joint � Determine if the leads are solderable prior to assembly (

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Sun Jan 30 21:56:05 EST 2000 | Paulvannan

We used Promosol Sn96.5/Ag 3.5 during our initial qualification for similar application. We could not achieve a shiny solder joint. Our changes to Sn95.5/Ag 4.5 does not improve the look. In order to confirm the reliability of the joint, I suggest yo

Re: Soldering to Paladium vs. Tin_Lead plated comps

Electronics Forum | Mon Feb 23 13:27:30 EST 1998 | Doug Romm

Gary, I'm pretty much the main contact at TI for palladium lead finish questions. We have a web site at "http://www.ti.com/sc/docs/asl/palladm/index.htm" which has technical papers I have written on the subject. Also, you'll find the Pd Lead Finish


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