Patent ID: 6472643
Filing Date: 2002-10-29
Classification: H01L

Abstract:
A wafer thermal management device, comprising:a thermal diffuser positioned stationary relative to a wafer surface, the thermal diffuser having a diffuser thermal mass, Md, and a temperature field Td over a heating surface which heats the wafer surface; a thermal source positioned stationary relative to the wafer surface, having a source thermal mass, Ms, less than or equal to about 0.1 (Md) and a temperature field over a surface proximal to the thermal diffuser, Ts, different from Td; a thermal sink positioned stationary relative to the wafer surface comprising a heat-carrying media with a controllable temperature, Tsk, the thermal sink thermally coupled to the thermal source and thermal diffuser by heat transfer across solid materials or across liquid and solid materials; and at least one controllable power supply connected to the thermal source.