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May 2002

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Fri, 3 May 2002 07:53:30 -0600
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Graham,
How do you control ESD when removing/applying the tape?
Rick Howieson
Delta Group Electronics, Inc.

-----Original Message-----
From: Graham Collins [mailto:[log in to unmask]]
Sent: Friday, May 03, 2002 6:35 AM
To: [log in to unmask]
Subject: Re: [TN] Conformal Coating


Hi Olivia
We hand spray our boards.  Volumes aren't high enough to justify masking "boots" or covers, so we use tape and a latex masking material.

When spraying the board it sits on a turntable fixture (to allow it to be easily rotated for a change in angle).  The fixture, and most of the bottom of the spray booth, is covered in aluminum foil.  When finished the operator replaces the foil.

Hope that helps.


regards

Graham Collins
Process Engineer,
Northrop Grumman
Atlantic Facility of Litton Systems Canada
(902) 873-2000 ext 6215

>>> [log in to unmask] 05/02/02 12:40PM >>>
Hi,
When applying conformal coating, on what type of surface is the PCB placed?
How is this surface maintained, or is it a disposable surface changed for
every application?
Are templates a good idea for masking off boards? If so how are they
maintained or cleaned.
Thanks in advance for any help.

_________________________________________________________________
MSN Photos is the easiest way to share and print your photos:
http://photos.msn.com/support/worldwide.aspx

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