Patent ID: 6126793
Filing Date: 2000-10-03
Classification: C23C

Abstract:
A method of forming films over an inner surface of a cylindrical member having a bore, said method comprising:an intermediate films forming process comprising steps of:placing the cylindrical member in a vacuum vessel,inserting a first electrode of a first intermediate film forming material in the bore of the cylindrical member, and keeping the cylindrical member at a ground potential or a floating potential,supplying a sputtering gas into the vacuum vessel after evacuating the vacuum vessel,applying a voltage to the first electrode to produce a plasma around the first electrode in the bore in order that the first intermediate film forming material is sputtered from the first electrode and is deposited so as to form a first intermediate film which has high adhesion with the cylindrical member over the inner surface of the cylindrical member,removing the first electrode from the bore of the cylindrical member and inserting a second electrode of a second intermediate film forming material in the bore, andapplying a voltage to the second electrode to produce a plasma around the second electrode in the bore in order that the second intermediate film forming material is sputtered from the second electrode and is deposited so as to form a second intermediate film which has high adhesion with a hard carbon film on the first intermediate film; anda hard carbon film forming process comprising steps of:keeping the second electrode at a ground potential,supplying a gas containing carbon into the vacuum vessel after evacuating the same, andapplying a voltage to the cylindrical member to produce a plasma in the vacuum vessel in order that the hard carbon film is deposited by plasma CVD process on the second intermediate film formed over the inner surface of the cylindrical member,wherein the intermediate films forming process and the hard carbon film forming process are performed sequentially in the same vacuum vessel.