Lam Research Corporation
Temperature-tuned substrate support for substrate processing systems

Abstract:

A system for controlling a temperature of a substrate during treatment in a substrate processing system includes a substrate support defining a center zone and a radially-outer zone. The substrate is arranged over both the center zone and the radially-outer zone during treatment. A first heater is configured to heat the center zone. A second heater is configured to heat the radially-outer zone. A first heat sink has one end in thermal communication with the center zone. A second heat sink has one end in thermal communication with the radially-outer zone. A temperature difference between the center zone and the radially-outer zone is greater than 10.degree. C. during the treatment.