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November 2004

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Subject:
From:
R Sedlak <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, R Sedlak <[log in to unmask]>
Date:
Wed, 10 Nov 2004 12:34:04 -0800
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Immersion silvers are self-limiting, and always much thinner than ED.
They vary from 5-10 millions of an inch.

Rudy Sedlak

Eric Kalgren <[log in to unmask]> wrote:
Good morning TechNet,



One of our drawings for an RF PCB calls out "Silver Plate per QQ-S-365,
electrodeposited, Type I, 0.0003" thk." The supplier that we are
getting quotes from says he can't do electrodeposit and wants to supply
immersion silver boards.



Are these two processes equivalent? I searched the archives and cannot
find any references to ED silver. Has immersion replaced this process?
(Our drawing is pretty old.)



The board material is Duroid 5880. would this make a difference?



Thanks for your help!



Eric Kalgren

Manufacturing Engineer

Atlantic Microwave

Phone: 978-779-7062

Fax: 978-779-0101




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