Patent ID: 8450657
Filing Date: 2013-05-28
Classification: F27D

Abstract:
1. A substrate holder for supporting a substrate in a processing system, comprising: a temperature controlled support base having a controlled first temperature; a substrate support opposing said temperature controlled support base and configured to support said substrate, said substrate support including a clamp electrode embedded therein, said clamp electrode configured to electrically clamp said substrate to said substrate support; one or more heating elements embedded within said substrate support and configured to heat said substrate support to a second temperature above said controlled first temperature; and an erosion resistant thermal insulator disposed between said temperature controlled support base and said substrate support, said erosion resistant thermal insulator having a thermal conductivity lower than respective thermal conductivities of both said substrate support and said temperature controlled support base such that said erosion resistant thermal insulator provides thermal resistance between said substrate support and said temperature controlled support base, wherein said erosion resistant thermal insulator is an acryl-based adhesive which bonds said temperature controlled support base to said substrate support and includes an exposed portion which is exposed to an external environment of the substrate holder, wherein at least the exposed portion consists of an acryl-based chemical compound material that resists halogen containing gas corrosion when exposed to a process gas of the processing system, the resistance to corrosion being quantified by the acryl-based chemical compound material having an erosion ratio of less than 5.5 mm