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October 1998

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Subject:
Re: pure tin surface finish
From:
"Signorelli, Paul" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 21 Oct 1998 07:52:59 -0600
Content-Type:
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It is not a good idea to use pure tin on electronic devices because of
whiskers/dendrites. See IPC-TR-476 first...
Paul Signorelli
RW Systems
[log in to unmask]
_______________________________________________________________________________
_
From: TechNet on Wed, Oct 21, 1998 07?39
Subject: Re: [TN] pure tin surface finish require
To: [log in to unmask]@inetgw


In a message dated 98-10-21 01:17:39 EDT, you write:

<< Hi All,

 I got some inquirty from customer. They want us to use pure tin as
 surface finish treatment. Is there any resource that can help me to get
 this order? I am very appreciated if you can provide any information to
 me.
  >>
How much pure Tin do you need?

There is immersion Tin, which, depending on who's lies you believe, can give
you 30-100 microinches, or electrolytic plating, which can give you as much
as
you want, but is a serious hassle to figure out how to do.

Rudy Sedlak
RD Chemical Company

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