Patent ID: 8585872
Filing Date: 2013-11-19
Classification: C23C,H01J

Abstract:
1. A sputtering apparatus comprising: a vacuum chamber; first and second planar targets having a rectangular shape; and first and second magnet members magnetized in the direction of the thickness of the magnet members, wherein the first and second targets are placed at a predetermined distance therebetween in the vacuum chamber with their surfaces being in parallel with each other, and wherein the first and second magnet members are placed behind the first and second targets in such a manner that opposite magnetic poles face each other, and sputtered particles are released from an end part of a sputtering space between the first and second targets toward a film-forming surface of an object to be film-formed; a transporting path situated near the end part of the sputtering space in the vacuum chamber, and the object is moved along to the transporting path; a transporting mechanised for moving the object along the transporting path while maintaining a suite in which the film-forming surface is situated in a plane facing the end part of the sputtering space, wherein surfaces of the first and the second targets are arranged on a plane orthogonal to the plane and crossing the transporting path, wherein one side of the first target and one side of the second target are situated in parallel with each other at an edge of the end part of the sputtering space; a moving means to move the first and second magnet members relative to the first and second targets in planes parallel to the surfaces of the first and second targets, wherein the outer peripheral edges of the first and second magnet members are greater than the outer peripheral edges of the first and second targets, and wherein the moving means moves the first and second magnet members behind the first and the second targets in such a manner that the first and second magnet members are moved in directions along the sides of the first and second targets situated at the edge of the end part or in directions orthogonal to the sides of the first and second targets situated at the edge of the end part while the outer peripheral edges of the first and second targets are kept within the outer peripheral edges of the first and second magnet members.