Varian Semiconductor Equipment Associates, Inc.

Siamak Salimian

Helen L Maynard

Qi Gao

A method of processing a workpiece is disclosed, where the interior surfaces of the plasma chamber are first coated using a conditioning gas that contains the desired dopant species. A working gas, which does not contain the desired dopant species, is then introduced and energized to form a plasma. This plasma is used to sputter the desired dopant species from the interior surfaces. This dopant species is deposited on the workpiece. A subsequent implant process may then be performed to implant the dopant into the workpiece. The implant process may include a thermal treatment, a knock in mechanism, or both.

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Rockport, MA, United States of America

Siamak Salimian