Patent ID: 7381926
Filing Date: 2008-06-03
Classification: F27B,F27D

Abstract:
1. A batch processing chamber comprising: a top plate; a bottom plate; sidewalls sealingly connected to the top plate and bottom plate, wherein the sidewalls, the top plate, and the bottom plate define a chamber volume; a substrate boat movably positioned in the chamber volume, wherein the substrate boat is configured to support a plurality of semiconductor substrates; and at least one heater removably disposed in a heater container formed in the chamber volume via at least one opening formed in at least one of the sidewalls, the top plate and the bottom plate, wherein the heater container defines a heater volume isolated from the chamber volume so that the heater volume remains atmospheric pressure while the chamber volume is at vacuum, and the at least one heater is curved and forms a cylindrical shell surrounding a substrate boat disposed in the process volume.