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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: silicone grease
Date: Sun, 31 Mar 2024 16:53:27 +1100
Organization: A noiseless patient Spider
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On 31/03/2024 5:14 am, John Larkin wrote:
> Give a nice flat mosfet package and a flat heat sink, I wonder how
> much benefit accrues from adding silicone grease. It's really messy in
> production and it's hard to confirm proper application. A little
> googling didn't provide hard numbers.
> 
> I'm thinking a big-die TO-220 fet, bolted to a copper CPU cooler, AlN
> or mica insulator, no grease, 40 watts. I guess I'll have to try it.

I've used graphite cloth as gap filler. It seems to work and it isn't messy.

Meas. Sci. Technol. 7 (1996) 1653–1664.

-- 
Bill Sloman, Sydney