Patent ID: 8287688

Claim:
A substrate holder for supporting a plurality of substrates in a chemical treatment chamber, comprising: a temperature-controlled substrate table having an upper surface configured to support two or more substrates in a process space of a chemical treatment chamber, a lower surface opposite said upper surface, and an edge surface, said process space configured to receive one or more process gases for chemical treatment of said two or more substrates; a fluid channel formed within an interior of said temperature-controlled substrate table; two or more support columns configured to support said temperature-controlled substrate table at a distance from a wall of said chemical treatment chamber, wherein each of said two or more support columns comprises a first end coupled to said lower surface of said temperature-controlled substrate table and a second end coupled to said wall of said chemical treatment chamber, and wherein each of said two or more support columns comprises an external surface exposed to said one or more process gases in said process space; a fluid thermal unit constructed and arranged to control a temperature of a heat transfer fluid; a first fluid conduit formed through one of said two or more support columns, said first fluid conduit configured to receive said heat transfer fluid from said fluid thermal unit and supply said heat transfer fluid to an inlet end of said fluid channel; and a second fluid conduit formed through another of said two or more support columns, said second fluid conduit configured to receive said heat transfer fluid from an outlet end of said fluid channel.