Patent ID: 7658801
Filing Date: 2010-02-09
Classification: F27B,H01L,H05B

Abstract:
1. A mounting table for holding a target object, comprising: a heating unit including a reflector plate made of an opaque quartz, and a quartz tube welded to a surface of the reflector plate, and a mounting table cover member having an open cylindrical shape with a closed upper surface and a peripheral sidewall, and installed to cover the reflector plate with said peripheral sidewall extending along an outermost surface of the reflector plate to a position at a base of the reflector plate, the target object being mounted thereon, wherein the mounting table cover member is made of a light absorbing material, and a carbon wire which generates heat when a current is applied thereto is disposed between the reflector plate and the mounting table cover member, wherein the mounting table cover member has a circular lid shape and an inner surface of a sidewall of the mounting table cover member has a diameter greater than a diameter of the reflector plate so that the inner surface of the sidewall of the mounting table cover member is in contact with a side surface of the reflector plate to be circumscribed thereto, and wherein a positioning projection having a ring-shape and made of a same material as that of the reflector plate is provided in an upper direction at a peripheral region of the reflector plate to form a component of the outermost surface of the reflector plate and positions the mounting table cover member which is inserted by the positioning projection, the positioning projection contacting with the mounting table cover member.