Good Morning Terry!

Although I don't have any experience with this material, it looks very,
very interesting. Check this out:

http://www.stablcor.com/presentation/ 

At the last company I worked at we were about to try the material in a
single board computer assembly that we had the task of ruggedizing, but
we ran into some issues with our customer that I won't get into...

Only drawback that I can initially see is that it is electrically
conductive and only licensed to a half-dozen fabs shops here in the US.
Maybe there might be some way that you can use this in your design.

Steve Gregory

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Terry Kozlyk
Sent: Thursday, May 31, 2007 6:02 AM
To: [log in to unmask]
Subject: [TN] Conductive Cooling thru Pre-Prig material

Technetters;

 

I have a 6 layer PCB with about 8 HOT DPAK components. The tabs are
electrically hot so I cannot just draw the heat directly thru a copper
fill brought out to the edge of the PCB.

 

I need electrical isolation, BUT high thermal conductivity between 2
adjacent layers.

 

Can anyone recommend what material they have specified to be used for
pre-prig that conducted the heat to the adjacent layer?

 

Voltage max is about 50 volts so I could probably go down to 2 or 3 mil
pre-prig.

 

Nothing special about this PCB; about 5" x 5".

 

The fab houses I solicited for info still haven't replied so I am
curious.

 

Any leads, products or websites would be appreciated.

 

Regards

TDK


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