Abstract: A susceptor for a CVD reactor includes a flat circular disc-shaped body with channels that are arranged on a broad side of the disc-shaped body within one or more circular surface sections extending on a plane in order to transfer heat to a substrate holder. The channels run about respective centers of the one or more circular surface sections in a spiral manner and are formed as depressions that are open towards the plane. An end of each of the channels has a channel opening, the channel openings being fluidically connected to a feed opening arranged at the end of a gas supply line. Additionally, the one or more surface sections are equipped with one or more influencing elements that influence the local heat transfer and are formed as open depressions on the plane or as insert pieces that plug into the depressions.

Abstract: A susceptor for a CVD reactor includes a flat circular disc-shaped body with channels that are arranged on a broad side of the disc-shaped body within one or more circular surface sections extending on a plane in order to transfer heat to a substrate holder. The channels run about respective centers of the one or more circular surface sections in a spiral manner and are formed as depressions that are open towards the plane. An end of each of the channels has a channel opening, the channel openings being fluidically connected to a feed opening arranged at the end of a gas supply line. Additionally, the one or more surface sections are equipped with one or more influencing elements that influence the local heat transfer and are formed as open depressions on the plane or as insert pieces that plug into the depressions.