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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 253.73+1.6%3:59 PM EST
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To: Mani1 who wrote (77885)4/22/2002 12:09:30 AM
From: tcmayRead Replies (1) of 275872
 
"Weight and ease of manufacturing. Metal have to either be machined or extruded. Plastic can be casted which is very cheap.

For some application the build conductivity of the heat sink material is not the bottleneck. As is the fan and the junction between the die and the heat sink."

Metal is trivial to cast. I suggest a few hours spent with a blowtorch melting and casting aluminum, pot metal, etc., as a useful laboratory exercise. Cast iron...gee, where'd they get _that_ name?

Having said this, the new carbon nanotube conductors have a lot of advantages. But not because metals have to be extruded or machined.

--Tim May
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