Patent ID: 7504006
Filing Date: 2009-03-17
Classification: C23C,H01J

Abstract:
1. A method of sputter depositing deposition material onto a substrate supported by a pedestal in a chamber, comprising: rotating a magnetron about the back of a target in the chamber, said magnetron having an area of no more than about ¼ of the area of the target and including an inner magnetic pole of one magnetic polarity surrounded by an outer magnetic pole of an opposite magnetic polarity, a magnetic flux of said outer pole being at least 50% larger than the magnetic flux of said inner pole; applying power to said target to thereby sputter material from said target onto said substrate at a first rate; applying RF power to said pedestal to provide a plasma to resputter deposition material on said substrate; and confining said plasma using a magnetic field generated by electromagnetic coils disposed around the periphery of the pedestal.