Patent ID: 8734913
Filing Date: 2014-05-27
Classification: C23C,F16C,H01J

Abstract:
1. A formation method of a coating that coats a coated portion of a body with the coating comprising: generating cylindrical plasma in a vacuum deposition chamber and supplying material gas into the vacuum deposition chamber; applying pulse voltage to the body; and attaching a shield member to the body, the shield member shielding an uncoated portion of the body where the coating is not formed so as to present a separation spacing between the shield member and the coated portion of the body where the coating is to be formed in order to prevent decrease of hardness of the coating in the coated portion of the body, wherein the body is arranged in the vacuum deposition chamber such that the coating portion of the body is parallel to the plasma, and wherein the body is arranged in a direction perpendicular to an axis of the cylindrical plasma.