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| Date: | Thu, 23 Feb 2006 08:29:16 -0500 |
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As Scott said, these two finishes are different. By t
Selva
As Scott said, these two finishes are different. By the way the term normally used is Flash Gold. Flash Gold uses electrolytically plated soft gold over electrolytically plated nickel and thus enjoys several advantages over ENIG.
I coauthored a paper at EXPO on this finish. I have worked with several clients who have migrated from ENIG to Flash Gold and have found it to be a great success Oddly enough, the finish is for the most part supplied by PCB shops in China and Taiwan.
Best regards
Lee
J. Lee Parker, Ph.D.
JLP Consultants LLC
804 779 3389
----- Original Message -----
From: Scott B. Westheimer<mailto:[log in to unmask]>
To: [log in to unmask]<mailto:[log in to unmask]>
Sent: Thursday, February 23, 2006 7:51 AM
Subject: Re: [TN] Question regd surface finish.
Selva.
They are not the same. ENIG is electroless nickel under immersion gold which
is 3 to 5 micron thick and it a soft gold finish. Gold flash in applied also
over nickel and is electro plated. The thickness can be made thicker than
immersion gold by increasing the time in the tank. Electro plated gold can
be either hard or soft.
Scott B. Westheimer
----- Original Message -----
From: "Selva Suganthi" <[log in to unmask]<mailto:[log in to unmask]>>
To: <[log in to unmask]<mailto:[log in to unmask]>>
Sent: Thursday, February 23, 2006 5:38 AM
Subject: [TN] Question regd surface finish.
> Dear All,
>
> I have a query regarding surface finish,
>
> I saw one fabinstruction notes , there the surface finish mentioned as
> Gold flash , my query is "Are the term Gold finish and ENIG both mean
> same ? or do they different ?" if so let me know the difference.
>
> Thanks in advance!!
>
> Thanks and Regards
> Suganthi
>
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