Densification of silicon carbide film using remote plasma treatment
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United States of America Patent
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Dec 5, 2017
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app pub date -
Dec 16, 2016
filing date -
Dec 16, 2016
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Abstract
Provided are methods and apparatuses for densifying a silicon carbide film using remote plasma treatment. Operations of remote plasma deposition and remote plasma treatment of the silicon carbide film alternatingly occur to control film density. A first thickness of silicon carbide film is deposited followed by a remote plasma treatment, and then a second thickness of silicon carbide film is deposited followed by another remote plasma treatment. The remote plasma treatment can flow radicals of source gas in a substantially low energy state, such as radicals of hydrogen in a ground state, towards silicon carbide film deposited on a substrate. The radicals of source gas in the substantially low energy state promote cross-linking and film densification in the silicon carbide film.
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