Phil
I am uncomfortable with the gold plating uniformity for 500-2000A.  I'd
suggest tracking down a specialty plating house to ask their confidence on
non-pourous plated gold with 500A thickness.  I recommend calling HP
(whatever their name is now) in Santa Rosa.  If you find out they are
uncomfortable, you may have to sputter gold on...  I have my large panel
coater company that I trust, but that's later if you need them.

Carey

-----Original Message-----
From: Phil Crepeau <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Tuesday, November 23, 1999 11:03 AM
Subject: Re: [TN] Gold plating specifications


>hi,
>
>sorry i can't answer your question, but i do have a comment.  do you think
>that this thickness (thinness) of gold will provide the protection you are
>looking for?
>
>phil
>
>-----Original Message-----
>From: Scott Rebman [mailto:[log in to unmask]]
>Sent: Tuesday, November 23, 1999 8:33 AM
>To: [log in to unmask]
>Subject: [TN] Gold plating specifications
>
>
>Good day all,
>
>I am going to specify gold plating on a PCB and am curious as to how the
>rest of the world specifies such things.
>
>The board is FR-4, double sided with 2 oz copper.  The quote I currently
>have  is for electrolytic plating 0.05~0.20um thick.  The board is
>populated with both through hole and SMT components.
>
>The purpose of going with the gold plating is to keep the pads under an
>elastomeric connector from oxidizing.  Oxidation on these pads has caused
>problems with segments of an LCD becoming dim or blank.
>
>Thanks in advance for the assistance.  With the exception of a few flaming
>jerks, this is a great board.
>
>Scott
>
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