Patent ID: 6099056
Filing Date: 2000-08-08
Classification: H01L

Abstract:
A holder for holding wafer-like articles (16) without physical contact between the holder and the wafer-like article being held, the holder having a platform (10) with an article facing surface (11), the holder characterized in thatthe article facing surface is provided with an annular groove (12) therein having depth (H), formed by an inner wall (17), an outer wall (18) and a ceiling surface (14) between the inner and outer walls, the ceiling surface further including an opening (24) therein; anda gas conducting conduit (15), having a diameter (m) which is smaller than depth (H), is connected to the opening in the ceiling surface of the annular groove, wherein the gas conducting conduit is oriented relative to the opening in the ceiling surface of the annular groove so as to cause a circular flow of gas around the annular groove when a gas is flowed down the conduit and through the opening.