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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 259.65+2.3%Jan 23 9:30 AM EST
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To: tcmay who wrote (77910)4/22/2002 2:36:17 AM
From: PetzRead Replies (1) of 275872
 
tcmay, think of it this way. NO HEAT can escape the die except through the slug. Therefore it is a series thermal resistance.

And the larger area of the slug can do no better than having the contact area of the heatsink made of the same high thermal conductivity metal -- at the point where the heatsink contacts the die. Copper faced heatsinks are now common. The heat can spread perfectly efficiently in the transverse direction without adding a resistance-adding spreader to heatsink interface.

Petz
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