Patent ID: 6117496
Filing Date: 2000-09-12
Classification: C23C,Y10S,Y10T

Abstract:
A method of forming a hydrogenated amorphous carbon (DLC) film over an inner surface of a guide bush, comprising the steps of:fixing an electrode support member for supporting an electrode by an electrode insulation member in a center bore of the guide bush along with an axis of the center bore so as to face the inner surface,placing legs and a first electrode plate, a second electrode plate, and the electrode insulation member which are fixed to the legs on a bottom of a vacuum vessel having a gas inlet port and an evacuation port,placing the guide bush on the first electrode plate with its end portion of a stepped section side downward and with the axis of the center bore perpendicular while contacting the same electrically with the first electrode plate, and connecting the first electrode plate to a power source, while connecting a projection of the electrode support member projecting out of the electrode insulation member to the second electrode plate, and grounding the electrode through the electrode support member, the second electrode plate, the legs, and the vacuum vessel,introducing a gas, containing carbon, through the gas inlet port after evacuating the vacuum vessel, andproducing a plasma by supplying electric power to the guide bush through the first electrode plate by the power source so as to form the carbon film of hydrogenated amorphous carbon over the inner surface of the guide bush.