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December 2009

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Subject:
From:
Joe Fjelstad <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Tue, 29 Dec 2009 15:46:44 -0500
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text/plain
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At ~ $4000 per kilo I am guessing that this is not a "loss leader"  
product. Let's hope the drug lords don't find out... ;-) 
 
Joe
 
 
 
 
In a message dated 12/29/2009 12:29:13 P.M. Pacific Standard Time,  
[log in to unmask] writes:

Practically speaking, using "thermal conductive" and "CB100" in the  
same sentence is an oxymoron.


Cu ~= 300 w/mK
Solder, Ormet,  et al ~= 25 w/mk
CB100 ~=3 w/mK

Small amount more annular copper,  filling with Ormet paste (not a 
cheaper option though) or filling via in  process with solder yields 
much greater increase in thermal conductivity  than CB100.

At 11:55 AM 12/29/2009, Joe Lara wrote:
>Hello  TechNetter's,
>
>Im currently using Du Ponts "CB-100" Conductive  Paste to vill Vias 
>at $400 per 100G. Is
>there a more affordable  way of filling vias that call out to be 
>filled (thermal conductive)  and
>plated?
>
>
>Best  Regards,
>
>Joe
>
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