Patent ID: 11942381
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A processing chamber, comprising:
a chamber body defining a processing volume;
a quartz window;
a reflector;
a substrate support disposed in the processing volume;
a heating source disposed outside the quartz window to direct energy towards the processing volume through the quartz window, wherein the heating source comprises a plurality of heating elements grouped in a plurality of concentric heating zones;
a sensor assembly operable to measure temperature along different radial locations in the processing volume;
a plurality of pulsed zones comprising one or more heating elements of the plurality of heating elements, wherein the one or more heating elements in at least one zone of the plurality of pulsed zones are configured to be powered in one or more of a different phase or a different amplitude from one or more other heating elements of the plurality of heating elements in a corresponding concentric zone; and
a system controller operable to adjust at least one of frequency, phase, or amplitude of pulsed energy from the one or more heating elements.