Patent ID: 6022461
Filing Date: 2000-02-08
Classification: C23C,H01J

Abstract:
A sputtering apparatus comprising:a vacuum vessel provided with an exhaust system;a target;a magnetron cathode for generating magnetron electric discharge;a substrate holder for holding a substrate, wherein a T/S distance is defined by a distance between the substrate and the target; anda gas-introducing mechanism for introducing sputtering gas into said vacuum vessel, the gas-introducing mechanism including a gas introducing tube located at a location closer to the target than halfway between the target and the substrate;wherein a T/S standard value, being the T/S distance divided by a representative target length, is set at 0.5 or more; andwherein the gas-introducing tube and an exhaust hole are disposed in said vacuum vessel such that a pressure distribution of the sputtering gas between said target and said substrate is decreased substantially uniformly along a direction from said target to said substrate.