Patent ID: 8061232

Claim:
A wrist assembly adapted to be coupled to a blade and robot arm comprising: a housing having a cap and a bottom, the housing including at least one heat choke and at least one cut away portion adapted to minimize contact between the wrist assembly and a blade used to hold a substrate, wherein the heat choke is a projection from a surface of the cap, wherein the surface of the cap is opposite the bottom of the housing, the heat choke extending substantially perpendicular from the surface of the cap, the heat choke adapted to space a plane of the blade from the surface of the cap; one or more pivots mounted only to the cap of the housing and at least partially enclosed in the housing and adapted to be coupled to a robot arm, wherein the placement of the one or more pivots at the cap of the housing results in a reduction in wrist temperature compared to placement at the bottom of the housing; and a belt coupled to the pivot and adapted to rotate the pivot about a bearing, wherein the bottom of the housing is adapted to reflect heat away from the at least one pivot and the bearing.