Apparatus and techniques to treat substrates using directional plasma and reactive gas

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United States of America Patent

PATENT NO 9706634
SERIAL NO

14970738

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Abstract

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An apparatus to treat a substrate. The apparatus may include a reactive gas source having a reactive gas outlet disposed in a process chamber, the reactive gas outlet to direct a first reactive gas to the substrate; a plasma chamber coupled to the process chamber and including an extraction plate having an extraction aperture extending along a first direction, disposed within the process chamber and movable along a second direction perpendicular to the first direction between a first position facing the reactive gas source and a second position facing the extraction aperture; and a gas flow restrictor disposed between the reactive gas outlet and the extraction aperture, the gas flow restrictor defining a differential pumping channel between at least the plasma chamber and substrate stage.

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Patent Owner(s)

Patent OwnerAddress
VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC35 DORY ROAD GLOUCESTER MA 01930

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Biloiu, Costel Rockport, US 50 303
Campbell, Christopher Newburyport, US 52 285
Chen, Tsung-Liang Danvers, US 49 178
Gilchrist, Glen F R Danvers, US 13 32
Hertel, Richard Boxford, US 4 47
Kontos, Alexander Beverly, US 7 57
Liang, Shurong Poughkeepsie, US 28 147
Sferlazzo, Piero Marblehead, US 47 1551
Singh, Vikram Andover, US 198 3356

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