Isonics Corp. ISON Message Board

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Microcap & Penny Stocks : Isonics Corp. ISON

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Oct 30 4:00 PM EDT

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To: Zeev Hed who wrote (1001)	12/27/2000 8:06:38 PM
From: dj_mich	of 1099

isonics.com Q. How can a thin layer of silicon-28 affect the performance of a computer chip? A. The active transistors in a computer chip are manufactured in the top few microns of a wafer. Today, all advanced microprocessors use epitaxial wafers because the epitaxial layer can be made with fewer defects than a bulk wafer. The epitaxial layer has fewer crystalline defects (dislocations, vacancies, micro-voids, etc.) and a more uniform distribution of dopant atoms because the layer is grown from a gas mixture rather than from a large boule of silicon. By using an isotopically pure silicon layer, the crystal structure is more perfect, and less scattering of the electrons takes place, generating less heat and electromagnetic noise.

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