Preliminary treatment method for workpiece

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United States of America Patent

PATENT NO 9994957
SERIAL NO

14778309

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Abstract

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Provided is a preliminary treatment method for a workpiece capable of shortening a cycle time by preventing a nodule from being formed on a carbon film. The preliminary treatment method for the workpiece is performed before a carbon film is formed on a surface of a workpiece W. A bias voltage is applied to the workpiece W disposed in a treatment space S maintained at a predetermined vacuum degree while an oxygen gas is supplied to the treatment space S before a material gas is supplied to the treatment space S, oxygen plasma is generated along the surface of the workpiece W, and oxygen, hydrogen, or water stuck to the surface of the workpiece W is removed.

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Patent Owner(s)

Patent OwnerAddress
HONDA MOTOR CO LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funatsu, Junya Tochigi, JP 6 4
Kobayashi, Koji Tochigi, JP 241 2073

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