Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Chris Fontaine

#17005

Removal of Parylene by Plasma Etching | 16 December, 1997

I am looking for information regarding the removal of parylene through a plasma etching process. Any information about this subject, or the plasma etching process in general would be greatly appreciated. Vendor comments are also welcome. Thank you, Chris Fontaine

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Brett Goldstein

#17006

Re: Removal of Parylene by Plasma Etching | 19 December, 1997

At my previous job I tried to remove parylene using a plasma etching process. I don't remember the parameters used, but I do remember this: we had almost no success in removing parylene using plasma etching. I'd be quite interested in hearing if you have any success, or find some other method to remove parylene. Brett Goldstein | I am looking for information regarding the removal of | parylene through a plasma etching process. Any | information about this subject, or the plasma etching | process in general would be greatly appreciated. | Vendor comments are also welcome. | Thank you, | Chris Fontaine

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Graham Naisbitt

#17007

Re: Removal of Parylene by Plasma Etching | 22 December, 1997

Brett and Chis, The method I understand to be the most popular is the use of micro-blasting or abrasion. In other words mechanical rather than chemical removal. However, that is only part of the problem - how do you repair the coating? The technique that seems common is to mechanically remove the coating, replace the component or whatever, and the re-coat using a 2 part epoxy coating as the nearest equivalent. If you would like more help, let me know Graham Naisbitt Concoat Ltd Alasan House, Albany Park Camberley GU15 2PL England

| At my previous job I tried to remove parylene using a plasma etching process. I don't remember the parameters used, but I do remember this: we had almost no success in removing parylene using plasma etching. I'd be quite interested in hearing if you have any success, or find some other method to remove parylene. | Brett Goldstein | | I am looking for information regarding the removal of | | parylene through a plasma etching process. Any | | information about this subject, or the plasma etching | | process in general would be greatly appreciated. | | Vendor comments are also welcome. | | Thank you, | | Chris Fontaine

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SMT Custom Nozzles

Plasma Prior to Conformal Coating