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September 2006

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Subject:
From:
Steve Gregory <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Steve Gregory <[log in to unmask]>
Date:
Tue, 19 Sep 2006 10:29:01 -0500
Content-Type:
text/plain
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text/plain (85 lines)
I was also looking for some updated PCB finish data and found something
interesting that I don't know if many people have seen. It's a
presentation done by CALCE called; "Assessing the risk posed by Tin
Whiskers". It's very, very good and I thought I would share my find....

Go to: http://tinyurl.com/ecbku

-Steve Gregory- 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Tuesday, September 19, 2006 9:48 AM
To: [log in to unmask]
Subject: Re: [TN] ENIG

Thanks Denny! A few of us were questioning that the data was so old,
crust was forming, which is appropriate for a pie chart. Let us know if
you get any updates.
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Dennis Fritz
Sent: Tuesday, September 19, 2006 6:55 AM
To: [log in to unmask]
Subject: Re: [TN] ENIG

In a message dated 9/19/2006 8:21:04 A.M. Eastern Daylight Time,
[log in to unmask] writes:

I have  the chart that Inge sent me posted. It's  at:
http://stevezeva.homestead.com/files/PCB_Finish.jpg


Something is not right here - old data???

Immersion tin and immersion silver are not even on the chart of
finishes.
IPC Suppliers Council documents this quarterly, but the  information
historically is limited to the suppliers of the data - the providers  of
surface finish chemistry.  I will see if I can get permission to publish
more current information.

Denny Fritz
MacDermid, Inc.

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