Patent ID: 8573836

Claim:
An apparatus dedicated to evaluate a substrate mounting device, wherein the substrate mounting device includes a mounting surface adapted to hold a substrate placed on the mounting surface, and wherein the substrate mounting device controls a temperature of the substrate mounted on the mounting surface, comprising: an evacuatable airtightly sealed chamber accommodating therein the substrate mounting device; an evaluation-purpose substrate to be mounted on the mounting surface, the evaluation-purpose substrate being made of a near infrared light absorbing material, and having a unit for measuring temperatures at plural sites on a surface and/or inside of the evaluation-purpose substrate; and a heat source, arranged in a facing relationship with the mounting surface, to irradiate infrared light substantially uniformly to the whole surface of the evaluation-purpose substrate, wherein, from a previously obtained determination, a correlation factor relates temperature information of the evaluation-purpose substrate exposed to the infrared light irradiating the whole surface of the evaluation-purpose substrate, using the unit for measuring temperatures at said plural sites, to temperature information previously obtained from an actual substrate mounted on an identical substrate mounting device in a plasma processing chamber and exposed to plasma processing, wherein the substrate mounting device in the evacuatable chamber is an electrostatic chuck, and wherein the evaluation-purpose substrate is made of silicon carbide, the evaluation-purpose substrate having a heat conductivity ranging from about 60 to 200 W/mK.