Electronics Forum | Tue Apr 20 19:34:13 EDT 2004 | Ken
ImAg is the Surface finish of choice for Intel mother boards....Tin/lead and lead free processes. I think palladium and soft gold are the preferred for wire bondable apps.
Electronics Forum | Mon May 24 08:14:59 EDT 2004 | jdumont
Good morning all, I was wondering if there is a solderability spec or something our purchasing department can order the parts to? Id like to be getting in the best (cleanest, tinned) parts possible to rule out any problems with that before I start at
Electronics Forum | Mon Jul 05 03:44:53 EDT 2004 | johnwnz
Dave, I'm going to disagree with you on the ENIG, it's my 3rd choice only just beating out OSP for that 4th spot. 1. Immersion Silver - cheaper than ENIG, as flat and no issues with Brittle interface (black pad) or Gold Embrittlement) Longer shelf l
Electronics Forum | Wed Aug 04 18:38:53 EDT 2004 | davef
whiskers / "matte" => no whiskers. Look here: http://nepp.nasa.gov/whisker/anecdote/20year/ There. Nice going. What a buzz killer. I've got to got find some donuts, cold pizza, er whatever.
Electronics Forum | Thu Aug 05 10:55:19 EDT 2004 | jim_bob
Thanks. Yes, this is a interesting topic, and one that keeps our component engineers busy these days. I'm familiar with the data you referenced. Is there a "easy" method (test method) to use at incoming inspection to verify a termination is "matte
Electronics Forum | Thu Sep 02 10:24:35 EDT 2004 | dj_jago
Greetings from the UK: I have been quite fortunate to lead (no pun intended) our company towards lead free sooner rater than later. One of our customers produces a product which is refurbushed every 6 months or so and sent back into the market. A
Electronics Forum | Sat Jan 22 14:30:45 EST 2005 | davef
First, your supplier is probably the best source of storage recommendations. Second, storage under proper conditions (20�30�C,
Electronics Forum | Fri Jan 21 13:29:35 EST 2005 | vinod
Hi Friends, I had a PCB with polymide material with nickle tin plating on it. I had real hard time to do hand solder. I am asking help if any one have any experience with polymide material.
Electronics Forum | Wed Jan 26 12:56:36 EST 2005 | patrickbruneel
Rob, Check these links as a starting point http://www.calce.umd.edu/lead-free/longterm.htm http://www.calce.umd.edu/lead-free/tin-whiskers/
Electronics Forum | Mon Mar 07 15:35:35 EST 2005 | John M
It has been my experience that the standard Fr4 material (Tg 135c) will discolor when processed at the new higher temperatures required for the high tin alloys... We have been using the High Tg Fr4 (Tg 170c) for many years to ensure this does not hap
