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Politics : Formerly About Applied Materials

AMAT 256.89

-1.2%

Dec 31 3:59 PM EST

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To: Jeffrey D who wrote (27075)	12/17/1998 9:25:00 AM
From: Katherine Derbyshire	of 70976

The pro-aluminum forces, which seems to include Intel, argue that the barrier layers needed for copper add too much capacitance and drain away a lot of copper's advantages. Moreover, crosstalk is a big problem at high frequencies, and aluminum has better crosstalk characteristics than copper. news.semiconductoronline.com Even before that became clear, the consensus at IEDM '97 was that copper was not needed for performance at 0.18 micron, but that it did offer potentially significant electromigration and cost advantages. (Sorry, no link. That meeting was before I joined Semiconductor Online.) Katherine

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