METHOD FOR LOCAL ETCHING OF THE SURFACE OF A SUBSTRATE

摘要

The invention relates to a method for the local etching of the surface of a substrate, characterised in that it comprises: a) making a gas-pervious polymer pad that comprises three-dimensional patterns on one surface thereof; b) contacting the surface including the pad patterns with the substrate; c) submitting the pad/substrate assembly to a plasma so that the species present in the plasma are accelerated and diffused through the pad until they reach the substrate.