Patent ID: 11864299
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A system for reducing charge on a workpiece, comprising:
a platen comprising a top surface having one or more openings;
one or more backside gas channels, each in communication with a respective opening on the top surface;
an ionizer, in communication with a backside gas supply to generate ionized gas, wherein an amount of ionization provided by the ionizer is programmable;
a valving system having an outlet in communication with the one or more backside gas channels, and an inlet in communication with an output of the ionizer; and
a controller, in communication with the ionizer to control the amount of ionization provided by the ionizer, wherein the ionized gas is provided to the inlet of the valving system.