Electronics Forum | Tue May 05 18:00:44 EDT 2009 | suepow
We recently started doing our own Parylene Coating on site. I am looking for some advise on the best way to remove the masking after coating. Is there a document anywhere that addresses this subject? Our fellow doing the coating had only about 2 we
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 | Thu Apr 10 17:44:22 EDT 2003 | davef
Q1: Can they be masked so parylene doesn't get underneath? A1: Your parylene applyer may be able to mask area, but in general no. This stuff is cured in a vacuum chamber to make sure that it gets into every past corner. Q2: How do you remove and re
Electronics Forum | Sat Apr 12 09:47:07 EDT 2003 | davef
... continuing with Q2: How do you remove and replace? A2: Belt sander, sand blasting, grinding wheel, etc. Parylene/Paraxylyene is a great coating and can be selectively removed by several methods. The IPC-7711 (Rework of Electronic Assemblies)
Electronics Forum | Fri Jan 13 06:54:12 EST 2006 | pjc
Here's a couple more: Vitek Coating Div., Vitek Research Corp. - Derby, CT - Contact Service Company Company Profile: Parylene Conformal Coating Services With Plasma Surface Treatment To Enhance Adhesion. Electrostatic Powder & Liquid Coating Of Med
Electronics Forum | Fri Feb 19 08:02:38 EST 2010 | duso02
We regularly strip conformal coating for military customers. Connector removal is not required. The type of coating is the biggest factor. Acrylics and silicones are easy and will come off nicely without any other damage. Epoxy and fully cured polyur
Electronics Forum | Thu Sep 24 22:30:23 EDT 1998 | Hank Hsiung
Dear Friends, I am looking for more information on plasma decapsulator for failure analysis of COB and BGA. So far I know only one manufacturer-Nippon Scientific who produce this machine. Have any of you used their machine? What is your opinion on
Electronics Forum | Thu Nov 03 21:40:40 EST 2005 | davef
There maybe multiple drivers to your problems. * First, decreasing bond quality with time indicates a plating issue. What's the actual thickness of your gold and nickel on the pads? * Second, the no-sticks indicate contamination. If it's organic, p
Electronics Forum | Sun Aug 08 04:36:02 EDT 1999 | Brian
Dave Frankly, I think you may be barking up the wrong tree. Like DaveF, I suggest that the process would be horrendously expensive with masking and so on. The $64,000 question is whether what you propose will serve any useful purpose. I venture to
Electronics Forum | Tue Oct 05 04:23:38 EDT 1999 | Brian
| | | | Can someone suggest what material I have to use to protect components by electrical discharge on ptfe based boards? | | | | It should have high resistivity, thermal stability (-40 +70 'C),perfect adherence on ptfe... | | | | Many tahnks | |
