Electronics Forum | Mon Feb 21 08:33:53 EST 2000 | Tony Di Mauro
Kurt, When I was working in a captive manufacturing house we had been to migrate toward tenting all vias under the BGA to eliminate not only shorts but insufficient (Starved) joints. Tony
Electronics Forum | Wed Sep 27 19:37:32 EDT 2000 | Dave F
Wolfgang is correct. Copper plating thickness of the via barrel walls is a key question you need to answer to troubleshoot this. Tenting is a red herring.
Electronics Forum | Wed Feb 16 09:33:09 EST 2000 | Kurt Waskow
Interested in information regarding PCB soldermask tenting over vias within a BGA layout. Is this a common practice to reduce the occurrence of shorts, are there any reliability concerns? Thanks!
Electronics Forum | Mon Feb 21 08:33:53 EST 2000 | Tony Di Mauro
Kurt, When I was working in a captive manufacturing house we had been to migrate toward tenting all vias under the BGA to eliminate not only shorts but insufficient (Starved) joints. Tony
Electronics Forum | Tue Aug 14 21:29:29 EDT 2001 | mugen
Hi, Just to clarify the terms, traditional : aka : Ramp-Soak-Spike (RSS) profiling method tent : aka : Ramp-To-Spike (RTS) profiling method By search engines (eg. Yahoo), you can find more example profiles for your ref.
Electronics Forum | Tue Apr 27 16:37:16 EDT 2004 | babe
Well I would think that the heat slug would work to a point. Obviously made to dissipate heat from the component. That said it wouldn't hurt to cover that also with aluminum foil. Your not wrapping a present, your simply tenting the component. IR wil
Electronics Forum | Wed Sep 15 22:43:24 EDT 2004 | davef
Just to help convince those on the fence that we don't know dip: 2221A, 4.5.1 tells you the vias have to be tented on both sides.
Electronics Forum | Wed Mar 23 22:28:10 EST 2005 | KEN
I ran into this yesterday. Seems some designer decided to not solder resist the via's on the solder side. Then the assembly went over the wave solder in a universal fixture. Not an ideal situation.
Electronics Forum | Tue Jan 31 15:52:39 EST 2006 | russ
I have never related Solder mask layout to Black Pad. I don't see how they could be related but.......
Electronics Forum | Wed Feb 01 08:20:04 EST 2006 | Chunks
Can you post the site where you saw this? I've never heard of such a thing.
