Patent ID: 7772527
Filing Date: 2010-08-10
Classification: F27B,H01L,Y10T

Abstract:
1. A substrate processing apparatus comprising: a process chamber in which a substrate is processed, the process chamber having walls forming upper and lower portions of the chamber, respectively, the walls being permeable with respect to radiant heat; a substrate support disposed in the chamber and on which a substrate to be processed is to be placed, the substrate support being interposed between the walls that form the upper and lower portions of the process chamber; annular radiant heaters respectively disposed above and below the process chamber and oriented generally parallel to the surface of the substrate support on which a substrate to be processed is to rest, whereby first components of radiant heat propagate from the heaters in directions towards the substrate support so as to pass through said walls of the process chamber and heat a substrate disposed on the substrate support, and second components of radiant heat propagate from the heaters in directions away from the substrate support; and heat reflectors disposed outside the process chamber at locations at which the heat reflectors reflect the second components of the radiant heat emanating from the heaters back towards the substrate support, the heat reflectors including a first thermally reflective section oriented to reflect a portion of the radiant heat toward an outer peripheral region of the substrate support and a second thermally reflective section oriented to reflect another portion of the radiant heat toward a central region of the substrate support, wherein the heat reflectors comprise a reflection angle adjusting mechanism by which an angle at which the second thermally reflective section reflects heat can be adjusted, and wherein the reflection angle adjusting mechanism includes a thermally reflective plate having a fixed end and a free end, and an adjusting member operatively engaged with the reflecting plate and by which the reflecting plate can be pivoted about the fixed end thereof.