Patent ID: 8252118
Filing Date: 2012-08-28
Classification: C23C,H01L,Y10T

Abstract:
1. A substrate support device provided with a structure for supplying an inert gas to a rear face of a substrate, comprising; a base table having a first aperture path which penetrates the base table and is communicated with a flow path of the inert gas, a thermoconductive intermediate member disposed on said base table and having a second aperture path which penetrates the thermoconductive intermediate member, a substrate support table disposed on said thermoconductive intermediate member and having a third aperture path which penetrates the substrate support table, and an elastic member including a hollow portion, the elastic member disposed in the second aperture path of said thermoconductive intermediate member and covering a side wall of the second aperture path so that the elastic member insulates said thermoconductive intermediate member from the inert gas which flows through the communication aperture path, wherein the hollow portion of the elastic member communicates with the first aperture path and the third aperture path so that the elastic member, the first aperture path, and the third aperture path form the flow path of the inert gas.