Patent 7763831 was granted and assigned to NGK Insulators on July, 2010 by the United States Patent and Trademark Office.
A heating device has a ceramic base with a heating surface, and a heating body embedded in the ceramic base. The heating device includes a thermal conductive member positioned between the heating surface and the heating body in the ceramic base. The thermal conductive member has a thermal conductivity that is higher than the ceramic base and as such, the heating device achieves superior temperature uniformity of a heated object particularly in a semiconductor device manufacturing process.