Patent ID: 6032724
Filing Date: 2000-03-07
Classification: F25B,G01R,H01L

Abstract:
A temperature control apparatus, comprising:a susceptor for mounting a sample thereon, said susceptor having a plurality of gas flow paths, said gas flow paths allowing low-temperature air for cooling to pass therethrough, said gas flow paths having a common low-temperature air receiving section provided on a center portion of the susceptor and respective exhaust ports, said gas flow paths extending in a zig zag fashion between said common low temperature air receiving section and said respective exhaust ports, and said gas flow paths being provided in respective fan-shaped regions;a cooling unit configured to cool said susceptor, said cooling unit including an electro-pneumatic regulator for generating high-pressure air of a predetermined pressure from received air and a vortex tube supplied with said high-pressure air from said electro-pneumatic regulator in a tangent direction and, as a result, generating a low-temperature air flow based on a vortex flow generated within said vortex tube and outputting said low-temperature air flow to said common low-temperature air receiving section of said susceptor;a heater configured to heat said susceptor;a temperature detector configured to detect a temperature of said susceptor; anda temperature adjusting unit configured to control said cooling unit and said heater based on a detection signal from said temperature detector.