Electronics Forum | Tue Mar 11 08:33:31 EST 2003 | davef
SMTA [www.smta.org] New On-line Presentation - March 14 Dealing with the Black Pad Defect in Manufacturing Solectron Vice President of Technology Srinivas Rao And Director of Process Integration Kim Hyland Date: Friday, March 14 Time: 10:30AM - Noon
Electronics Forum | Wed Mar 19 09:59:45 EST 2003 | davef
Jodi What's your thinking on the black pad rework technique proposed in: �A Failure Analysis And Rework Method �� Z. Mei, et al, SMTA International 1999, p407
Electronics Forum | Thu Mar 20 09:50:42 EST 2003 | Jodi Roepsch
We have not found a way to rework boards successfully at this time. Boards with severe black pad get scrapped.
Electronics Forum | Fri Apr 25 08:09:13 EDT 2003 | razor
Thanks for response. I do wish to qualify that I got the alleged role of Nickel use for corrosion resistance from an article authored by Jason Gjesvold, IS IT REALLY BLACK PAD?, "Phosphorus rich Ni alloys are often used for corrosion resistance duri
Electronics Forum | Thu May 05 15:25:38 EDT 2005 | jimmiem
Would a lesser degree of black pad still allow solderability as i seen in my case?
Electronics Forum | Tue Jun 13 04:42:26 EDT 2006 | yqdeng@gsl.com.hk
What is "Black pad"in ENIG(Electroless nickel/immersion gold), how to solve if it happen in SMD BGA solder joint?
Electronics Forum | Mon Jun 19 05:00:17 EDT 2006 | YQ Deng
Thanks very much! In fact, "Black PAD" phenomenon have been found in our product, the total BGA came off PCB during drop test. if we apply the underfill to BGA after SMD process, Could the underfill add reliablility of product?
Electronics Forum | Tue Nov 14 05:16:33 EST 2006 | pavel_murtishev
Good afternoon, Yes, it is to be expected. This is well known �black pad� issue. Google �black pad�, for example: http://doc.tms.org/ezMerchant/prodtms.nsf/ProductLookupItemID/JEM-0109-1262/$FILE/JEM-0109-1262F.pdf?OpenElement BR, Pavel
Electronics Forum | Tue Dec 05 21:19:14 EST 2006 | Jack
Hi Doug, I think you are right..Let me do some EDX on other location to see any nickel oxide...BTW, is this black pad reworkable?? If yes, how? Thanks in advance,..
Electronics Forum | Mon Oct 20 17:03:05 EDT 2008 | davef
Josh From looking at your pix, we don't have a clue. [And we're going down to the nurse's station to get our eye checked because we don't black bubkus.] More than anything else the: * White on the pads could be solder * Copper-penny brown on the pad
