Patent ID: 8207476

Claim:
A substrate holder for supporting a substrate in a processing system, comprising: a support base having fluid channels to circulate a temperature controlled thermal fluid in said support base; a substrate support coupled via a thermal insulator to an upper portion of said support base, said substrate support comprising: a plurality of heating elements embedded within said substrate support, an upper surface to support the substrate by contact between said upper surface and a backside of the substrate, and; an electrostatic clamp electrode to hold the substrate on said upper surface of said substrate support; and at least two temperature sensors disposed in the substrate holder to measure a temperature of said substrate support, a temperature of the substrate contacting said substrate support, or a temperature of both said substrate support and said substrate contacting said substrate support, the at least two temperature sensors comprising: a central temperature sensor to measure a temperature of a substantially central region of the substrate and a temperature beneath the substantially central region of substrate, and an edge temperature sensor to measure a temperature of a substantially edge region of the substrate and a temperature beneath the substantially edge region of the substrate, wherein the central and edge temperature sensors are each coupled to a temperature monitoring system, wherein said support base, said substrate support and said at least two temperature sensors include a feature to provide coupling to a control system such that a temperature of said plurality of heating elements in said substrate support and a temperature of the temperature controlled fluid in said support base are adjusted based on a measured temperature of said at least two temperature sensors during each processing step of a multiple step process.