Patent ID: 6719499
Filing Date: 2004-04-13
Classification: H01L,Y10S

Abstract:
A device for semiconductor processing comprising:an accommodation chamber formed by an upper part and a bottom part, the lower part having openings extending between the accommodation chamber and an underside of the lower part, the openings providing for supply of process gas into the accommodation chamber in order to place a wafer in a floating position; and equipment in proximity of an end section of the accommodation chamber and configured to stabilize the wafer in a predetermined floating position, wherein the equipment comprises a gas discharge and a gas supply that open into the accommodation chamber, wherein the gas discharge and the gas supply are configured so that upon a displacement of the wafer from the predetermined floating position a flow resistance between the gas discharge and the gas supply increases at a side of the wafer in direction of the displacement such that an increased pressure urges the wafer back in the predetermined floating position.