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To: Ali Chen who wrote (5570)	8/18/2000 1:42:52 PM
From: Mani1	Read Replies (2) \| Respond to of 275872

Ali re <<That's why Intel demonstrated their first Giga-Cumines with all-copper convoluted-fin heat sink, right?>> I did not see such a thing. I do know that Dell's 1 GHz are Copper spreader with aluminum fins. Good thermal design. Re <<Extreme cases do not stress your point.>> Note how you say, "Extreme cases". And in the article that you noted in says, and I quote "and in extreme cases, the pins can be substituted by copper pins that are approximately 20 percent more efficient." siliconinvestor.com Extreme cases Ali!! Coppermine is not an extreme case. If you are cooling 30 watts and are working with a <$10 fan (that can be a very good fan) and 2.5" X 2.5" foot print, copper fins add very little. If you get bigger foot print, it adds even less assuming you have a copper heat spreader. Everyone who has minimal knowledge about heatsink design knows this fact. No offence Ali, but you don't know what you are talking about in this case. Mani