Electronics Forum | Tue Feb 16 13:30:20 EST 2010 | asksmt
Hi, I have specified Lead Free Plating for my Four Layer PCB. but the Final Production Solder Process is not Lead free it is leaded Process. My question is will there be an issue if we use Lead free plating on PCB and use leaded solder material fo
Electronics Forum | Fri Aug 02 21:50:24 EDT 2002 | ralugg
I am trying to find the Medical specification or rating for components used in the assmbly of a PCB / level 2 and 3. also is there suppliers who speialize in these components.
Electronics Forum | Sun Apr 25 08:46:57 EDT 2004 | Roni H.
Hello, Does anyone heard of "F2" or "GV" as replacement materials for FR4?? I'll be glad to have any information regarding this issue. Thanks Roni H.
Electronics Forum | Tue Nov 06 10:28:58 EST 2018 | davef
Media Links IPC Global Insight This weekly electronic newsletter includes IPC news and multimedia information on manufacturing and management best practices and solutions, new technologies, standards, government relations and environment, health and
Electronics Forum | Fri Nov 28 04:46:45 EST 2003 | gregoryyork
Best to establish what type of residue is causing this problem and then stamp it out.Speak with SCOPE Labs who offer PCB extraction followed by IR and IC work. So many problems with porous resist at present and NON ionic materials that you really nee
Electronics Forum | Mon Apr 03 02:09:58 EDT 2017 | soldertraining
Restriction of Hazardous Substances (RoHS) bans products that contain a high level of hazardous materials from entering the market like the EU market. If we talk about PCB products - The printed circuit board services – including both conventional an
Electronics Forum | Sun Dec 21 04:27:44 EST 2014 | leadthree
Are you really sure that related to my issue? Anyway, in the meantime I experimented a bit with a PVC supplier and now I have a soft PVC that can handle my 185°C (365°F) for 90 Minutes. It becomes a little bit yellow - the previous got cat-black.
Electronics Forum | Mon Aug 18 15:04:25 EDT 2014 | rgduval
Off hand, I can't recall a "formula" for how long boards could sit in a specific RH environment. I've done a couple of quick Google searches, and can find a bunch of information on the dispersion rate of moisture in various PCB materials, but, nothi
Electronics Forum | Mon May 16 22:59:40 EDT 2005 | davef
We believe your problem is caused by the mismatch in CTE of the material ised in your BGA. In fact, this "potato chipping" [where the corners curl-up] is present in all BGA. The issue is the matter of degree. [Mismatching CTE is how old thermostats
Electronics Forum | Mon Nov 07 12:25:32 EST 2005 | Rob
Hi CW, Larger chip caps can be susceptable to cracking, but mainly this is due to handling - flexing of boards is the main culprit (the part being mechanically joined at both ends to the board). PCB's usually flex easiest along one axis, and larger
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