Rudy, 

 

Would the immersion silver be thicker or thinner?

 

Thanks

 

I thought I replied to this, but haven't seen anything in my box, so
forgive me if it's a double post...

 

Eric Kalgren

Manufacturing Engineer

Atlantic Microwave

Phone: 978-779-7062

Fax:     978-779-0101

 

-----Original Message-----
From: R Sedlak [mailto:[log in to unmask]] 
Sent: Wednesday, November 10, 2004 11:32 AM
To: [log in to unmask]
Subject: Re: [TN] Electrodeposited Silver vs. Immersion Silver

 

Eric:

 

You cannot get anywhere near the specified thickness with immersion
Silver, that said, you may not need to, as immersion Silver probably has
a significantly longer shelf life than ED Silver, as it contains a nice
load of antitarnish co-deposited with the silver.

 

Rudy Sedlak

RD Chemical Company

 

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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