Electronics Forum | Fri Apr 13 22:38:19 EDT 2001 | edylc
Hi , Could you be seeing the nickel under the gold plating because you are removing some of the Gold with the Kapton Tape....?? You mean , the adhesive properties of the kapton tape will cause the gold plating on the gold finger to be somehow peel of
Electronics Forum | Fri Apr 13 13:45:25 EDT 2001 | gsmguru
Just a guess-- Could you be seeing the nickel under the gold plating because you are removing some of the Gold with the Kapton Tape ? This should be easy to verify. Otherwise it sounds like things are pretty much covered.
Electronics Forum | Tue Apr 17 21:30:27 EDT 2001 | davef
The issue is on the table. Which is it? Are you ... * Loosing your gold plate when you remove the tape? [A tape test is a standard test for evaluating gold fingers. Check IPC-TM-650, test number wachacallit. Checkitaut.] OR * Putting tape o
Electronics Forum | Tue Jun 28 18:20:49 EDT 2005 | russ
Matt, have you run a profile on this board? Just because it's .062" doesn't mean that any old .062" profile will work. We have .062" thick boards that almost nil for copper and other are utilizing 2 oz. layers internally. They require quite diffe
Electronics Forum | Thu Sep 19 21:17:50 EDT 2002 | Sam
We had encountered similar problem before. But the cause was found out to be the poor good plating, instead of contamination. The way we dealt with that was sending them to the supplier for rework. It may be the fastest and most relaibility way. Goo
Electronics Forum | Thu Sep 19 17:14:02 EDT 2002 | davef
Comments are: * Use an eraser if the surface of Au is not clean, but make sure the eraser has no/low ionics (such as sulfur that is a common additive for rubber). * If the plating surface required eraser to remove the top surface, the plasma normally
Electronics Forum | Tue Jul 18 22:11:13 EDT 2006 | davef
Aping Russ' reply: * ~70% of the time solder on gold fingers is caused by poor printing and handling processes. * ~25% of the time solder on gold fingers is caused by poor thermal recipe when soldering. * ~5% of the time solder on gold fingers is cau
Electronics Forum | Tue Jul 18 10:08:19 EDT 2006 | pms
kapton tape the gold fingers before reflow.........
Electronics Forum | Tue Jul 18 03:04:46 EDT 2006 | sharifudin
We are trying to reduce the number of unit fail at QA Visual Inspection due to Solder On Gold Finger. We know so far that the solder is spattering onto the Gold Finger during reflow. I need some advise on what kind of process can improve to reduce th
Electronics Forum | Mon Feb 05 20:33:14 EST 2001 | davef
Could you be trying to find: Stevens Products 128 N. Park St E Orange, NJ 07019 973.672.2140 Ross Stevens? Dynamic Technologies (titanium cover w/ silicone jacket, pricey) Stevens makes a U-shaped strip of fiber-material that slips over gold fing
