Patent ID: 6514376
Filing Date: 2003-02-04
Classification: C23C,H01F,H01J,H01L

Abstract:
A plasma reactor comprising:a plasma reactor chamber and a workpiece support for holding a workpiece in a support plane inside said chamber during processing, said chamber having a reactor enclosure portion facing said support; a cold sink adjacent said reactor enclosure portion; a plasma source power applicator between said reactor enclosure portion and said cold sink; and a thermal conductor between and in contact with said cold sink and said reactor enclosure said thermal conductor and said cold sink define a cold sink interface therebetween; a thermally conductive substance within said cold sink interface for reducing the thermal resistance across said cold sink interface, said thermally conductive substance comprising a thermally conductive gas filling said cold sink interface; a gas manifold in said cold sink communicable with a source of said thermally conductive gas; an inlet through said cold sink from said gas manifold and opening out to said cold body interface; an O-ring apparatus sandwiched between said cold sink and said thermal conductor and defining a gas-containing volume in said cold sink interface in communication with said inlet from said cold sink, said gas-containing volume is of nearly infinitesimal thickness.