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Subject:	Re: Surface Finish
From:	Gerard O'Brien <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Wed, 30 Apr 2003 08:44:11 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (49 lines)

Ken if you check out the paper in appendix 5 of 4552 you will see the data
on using ENIG as a switch pad material. Most applications I have seen HASL
and Carbon used for over the years are for soft touch membrane type switches
- ENIG is a definite replacement for these. If a rotary switch application
is being used then ENIG is the wrong finish.

Regards

Gerard O'Brien
Co-chairman 4552/4553/4554.............45XX

-----Original Message-----
From: Ken Patel [mailto:[log in to unmask]]
Sent: Tuesday, April 29, 2003 4:26 PM
To: [log in to unmask]
Subject: [TN] Surface Finish

Expert,
Can Carbon ink and HASL finish be replaced entirely by ENIG finish or any
other finish?

re,
ken patel

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