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February 1998

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Subject:
From:
Hütter Simon <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 20 Feb 1998 07:42:56 -0000
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Afri Singh wrote:
>Hello technetters.  I have a board which requires both hard and soft gold.
>Hard under the key-pads and soft on the rest which is mainly surface mount.
>We have been masking one to do the other.   is it possible to do hard gold
>on the entire board and then mask the selective areas and do the soft on
>top of the hard   --or is there a better way ??
>thanking you

We do it in this way:
- soft gold (electroless Ni/Au) over the entire board
- mask the board
- hard gold
- remove mask

Simon

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