Patent ID: 6419752
Filing Date: 2002-07-16
Classification: C23C,H01J

Abstract:
Structuring device for processing a surface of a substrate, comprising a substrate chamber for mounting the substrate and a reaction chamber enabling a gas reaction at a given operating pressure, the reaction chamber having at least one gas inlet for a reaction gas and at least one injection outlet leading into the substrate chamber,characterized in that the substrate chamber is provided with a pumping system for maintaining a vacuum within the substrate chamber at a pressure not above the operating pressure of the gas reaction in the reaction chamber, the injection outlet is provided with at least one injection pipe ending into an injection opening of given width, the injection pipe having a length not smaller than the width of the injection opening, the injection pipe forming gas particles originating from the gas reaction into a molecular-flow gas jet streaming out of the injection opening, and the injection outlet and/or the substrate are provided with a positioning means for positioning the injection opening with respect to the substrate surface at a height of the order of or below the width of the opening as measured along the axis of the injection pipe.