Patent ID: 8450652
Filing Date: 2013-05-28
Classification: H01L

Abstract:
1. An apparatus for thermally treating a substrate, the substrate defining a central region, an outer region, and an outer contour, the apparatus comprising: a pair of first substantially planar walls in spaced parallel relation and arranged substantially parallel to the substrate and a second wall connected to the first substantially planar walls, the pair of first substantially planar walls and second wall defining a processing space; a substrate holding device located within the processing space, the substrate holding device defining a substrate retaining region; a heating element located in the processing space between one of the first substantially planar walls and the substrate retaining region; a shutter located between the substrate retaining region and the heating element, the shutter configured to limit radiation emitted by the heating element in the direction of the substrate retaining region, the shutter comprising an aperture having a contour that corresponds to the outer contour of the substrate, the shutter further comprising a chamfer facing the substrate retaining region; wherein the second wall comprises a wall section located between the substrate retaining region and the shutter, the wall section having a reflective surface facing the substrate retaining region, the reflective surface configured to reflect radiation emitted by the substrate.