Electronics Forum | Thu Aug 18 14:13:36 EDT 2011 | davef
Here are a few labs that would be good starting points: * Robisan Laboratory; 6502 East 21 St, Indianapolis, IN 46219; 317-353-6249 F357-1270 Susan Mansilla, Technical Director robisan1@aol.com * Trace Laboratories - East; 5 North Park Dr, Hunt Vall
Electronics Forum | Fri Jun 08 17:22:51 EDT 2007 | naynayno
We have been producing an IMS assembly with SMT dpak's for some time. However, we recently encountered a new problem by chance - the parts can be flicked off with a finger nail. I state by chance because the solder joints are wetted and shiny with
Electronics Forum | Thu Jun 30 03:14:34 EDT 2016 | andrzej
Looks like "black pad" issue. More about this here: http://www.ipc.org/feature-article.aspx?aid=Black-pad Definitly PCB supplier need to improve the process.
Electronics Forum | Mon Mar 17 18:11:32 EST 2003 | davef
Converting to immersion silver is the best solution to the "black pad problem".
Electronics Forum | Wed Aug 24 22:11:36 EDT 2016 | davef
I'd guess that "black pad" is not the issue that you need to address, because only 2 of your 5 test points has the problem that we seem to be discussing. I'd expect "black pad" problems to be more wide spread. Something is going on at those two locat
Electronics Forum | Tue Aug 02 15:03:37 EDT 2016 | davef
On a previous black pad experience we soldered a wire to a fiducial and did a pull test to failure. On the black pad board the wire and solder pulled of clean leaving the fiducial on the board. On good boards the copper came off with the wire. If you
Electronics Forum | Mon Aug 22 22:40:52 EDT 2016 | twhoo
analysis report is as attached. Pls let me know what you think of the root cause of this issue? Can i conclude this is a black pad at thru hole ring with a root cause of contaminated gold
Electronics Forum | Thu Nov 07 21:50:58 EST 2002 | Juan C. Ruiz
I work in a plant located in Monterrey Mexico, I would like to know where I can sent some boards to be analized since we have the suspect to have a black pad problem with the boards. Any Idea?
Electronics Forum | Tue Feb 11 15:54:23 EST 2003 | Jodi Roepsch
I am interested in knowing if anyone has new information about the black pad defect with ENIG plating. I am interested in it from the viewpoint of risk assessment, testing done on final product to isolate failures,and root cause of the defect. Than
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
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