Method of eliminating undesirable carbon product deposited on the inside of a reaction chamber
First Claim
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1. An etching method for removing carbon deposition sticking on the inside of the reaction chamber of a deposition apparatus after completing the deposition of a material consisting mainly of carbon on a substrate, said method comprising:
- evacuating said reaction chamber;
inputting oxygen or oxygen compound gas as the etchant gas to said reaction chamber; and
inputting an electromagnetic power to said reaction chamber to produce a plasma gas derived from said etchant gas.
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Abstract
The inside of a reaction chamber for CVD is cleaned after deposition of a carbon film. When crystalline carbon or diamond-like carbon is formed in the chamber, undesirable deposition occurs on the inside of the reaction chamber. The sticky carbon deposition is removed by etching, making use of oxygen or oxygen compound gas rather than fluorine or chlorine compound gas which tends to damage the inside of the reaction chamber.
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13 Claims
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1. An etching method for removing carbon deposition sticking on the inside of the reaction chamber of a deposition apparatus after completing the deposition of a material consisting mainly of carbon on a substrate, said method comprising:
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evacuating said reaction chamber; inputting oxygen or oxygen compound gas as the etchant gas to said reaction chamber; and inputting an electromagnetic power to said reaction chamber to produce a plasma gas derived from said etchant gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification