It means Selective electrolytic hard Gold plating.
James Hofer
Director of Operations
Accurate Circuit Engineering
3019 S. Kilson Dr.
Santa Ana Ca. 92707-4202
714-546-2162 work
714-473-6127 cell
[log in to unmask]
----- Original Message -----
From: "Janoch Jiøí, Ing." <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 02, 2004 5:45 AM
Subject: Re: [TN] Surface Finish for keypad membrane switches
> Hi,
> I'm interested in Gold PCB surface as well. What do you mean by
> "selective Grade C gold". Is it an Au technology ?
>
> Thank you for answer
>
> Regards
> J.Janoch
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Jeffrey Bush
> Sent: Tuesday, November 02, 2004 1:40 PM
> To: [log in to unmask]
> Subject: Re: [TN] Surface Finish for keypad membrane switches
>
> I would not use ENIG for switch contacts, but rather selective Grade C
> gold over electrolytic Nickel. Balance could be silver, tin or ENIG for
> device placement.
>
> -----Original Message-----
> From: Kaye Clayo [mailto:[log in to unmask]]
> Sent: Monday, November 01, 2004 4:10 PM
> To: [log in to unmask]
> Subject: [TN] Surface Finish for keypad membrane switches
>
> Technet:
>
> Is ENIG a good reliable surface finish for keypad membrane switches that
> cannot be bussed to the edge of the board?
> If not, what be a good surface finish for Lead-Free keypad switches.
>
> Thank you in advance.
>
> Kaye Clayo
>
>
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