[Amps] Arctic Silver

[Gary Smith]

As I remember from my first days with 
Arctic Silver, the secret used to be that 
you would "lap" the mating surfaces 
through various methods. The most popular 
was to use a flat piece of glass and 
progressively finer grit wet sanding 
paper, the idea being to get the heatsink 
truly flat with only microscopic grooves 
left in it from the sanding on 2000 grit 
paper.

Once you were satisfied you had made the 
heatsink side as flat as possible then you 
put one small drop of Arctic Silver in the 
center of the chip and then gently pressed 
down slightly wiggling back and forth to 
spread that one drop out equally in all 
directions. Supposedly that would keep air 
bubbles from forming and if you did it 
well you would see the Arctic Silver 
extrude slightly on all four sides showing 
that it covered the entire surface.

I never had a problem with thermal 
runaway.

73,

Gary
KA1J

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