Pete,
3M has a range of thermally conductive tapes and pads for such purposes,
the latest product is a double sided tape, 5, 10 or 15 mils thick with
excellent wet out and adhesion. thermal conductivity is about 0.6 W/mK.
If higher thermal condutivity around (2.5-3W/mK) is needed, there are
conductive pads but these has pretty low adhesion values and are thicker.
Let me know if you need more info.
Best regards,
Hann
Joyce Koo <[log in to unmask]> on 06/08/2001 07:24:07 AM
Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond
to Joyce Koo <[log in to unmask]>
To: [log in to unmask]
cc: (bcc: Hann Pang/US-Corporate/3M/US)
Subject: Re: [TN] Thin Thermal Pad Materials
try AI Technology, use paste with filler (thermal set)...
www/aotechnology.com
good luck.
jk
-----Original Message-----
From: <Peter George Duncan> [mailto:[log in to unmask]]
Sent: June 7, 2001 10:33 PM
To: [log in to unmask]
Subject: [TN] Thin Thermal Pad Materials
Hi, Everyone,
We are working on a conduction-cooled VME SMT board design for an
avionics
application. It requires a 7 degree C thermal gradient from Chip die at
the
board centre to card the edge, which may be impossible, but we're trying
so
I need your advice.
I'm looking for a highly efficient thermal material 0.30mm thick +/-
0.03mm
and a material 0.15mm thick +/- 0.03mm to fill component air gaps and
other
material interfaces. It should have double-sided adhesive, and require
an
absolute minimum attachment pressure.
I cannot find any materials anywhere, myself, that aren't 0.25mm or
0.5mm
or thicker. And there's nothing as thin as 0.15 finished thickness even
in
thermal tapes. We don't want to use greases or anything silicone either.
Any ideas, anyone, as to where I might find a material souce to meet
such
requirements?
TIA for your ever-wonderful ideas.
Pete Duncan
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