Patent ID: 6991709
Filing Date: 2006-01-31
Classification: C23C,H01J,H01L

Abstract:
1. A sputtering method performed in a plasma sputter reactor having a target comprising a metal and powered by a selective DC power supply and a pedestal electrode powered by a selective RF power supply and configured to support in opposition to said target a substrate having a hole formed and coated with a layer of a material, comprising the steps of: a first step of selecting a first DC power level applied by said DC power supply to said target and a first RF power level applied by said RF power supply to said pedestal electrode to effect etching of said layer in a first portion of said hole and deposition of said metal on a second portion of said hole; and a first step of applying said first DC power level to said target and said first RF power level to said pedestal electrode to simultaneously perform said etching and said deposition on said substrate.