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March 1999

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Subject:
Re: Flash Gold and Switch Contacts
From:
Bruce Stacy <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 17 Mar 1999 15:56:08 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (306 lines) 
---------------------- Forwarded by Bruce Stacy/ECSDOMAIN on 03/17/99 04:04
PM ---------------------------

 (Embedded      (Embedded image moved to file:
 image moved to pic23701.pcx)
 file:          Bruce Stacy
 pic01313.pcx)  (Embedded image moved to file:
                pic00784.pcx)
                03/17/99 02:11:49 PM
                (Embedded image moved to file:
                pic15500.pcx)




To:   [log in to unmask]>, Jack Olson" <[log in to unmask]>
cc:
Subject:  Re: [TN] Flash Gold and Switch Contacts  (Document link not
      converted)

Jack,
First questions: Are these areas going to be subjected to wear?  What is
the contact force?  What type of environment?

Bruce Stacy
Lucent Technologies
908-582-4289
[log in to unmask]



Jack Olson <[log in to unmask]> on 03/17/99 12:58:07 PM

Please respond to "\"TechNet E-Mail Forum.\" <[log in to unmask]>,        Jack
      Olson" <[log in to unmask]>

To:   [log in to unmask]
cc:    (bcc: Bruce Stacy/ECSDOMAIN)
Subject:  [TN] Flash Gold and Switch Contacts




I have just read through about a thousand messages regarding gold plating
in
the Technet archive, but still couldn't find exactly what I need to know:

We have a design with one side all contact switch patterns, and the other
side SMT components. Since we wanted to gold plate the contact patterns, we
were told to just gold plate the whole board.

So the question is:  What gold thickness would be thin enough for the SMT's
and still thick enough for good reliable contacts?  Or is there a better
way?

thanks in advance,
Jack

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