Method for cleaning wafer surface and a method for forming thin

Semiconductor device manufacturing: process – Coating of substrate containing semiconductor region or of... – Insulative material deposited upon semiconductive substrate

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H01L 2131

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active

061242187

ABSTRACT:
A method for removing a native oxide and contaminants from a wafer surface at a relatively low temperature ranged from 100.degree. C. to 800.degree. C. uses H.sub.2 gas or hydrogen containing gas comprising ion sources chosen from impurity ions such as boron, phosphorus, arsenic, antimony, aluminum, and germanium activated by a plasma to be applied to the wafer surface in a vacuum furnace. A method for forming a thin oxide on a silicon wafer or substrate at a relatively low temperature ranged from 250.degree. C. to 800.degree. C. applies O.sub.2 or NO.sub.2 by using a plasma to the silicon wafer in a vacuum furnace.

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