Patent ID: 7384872
Filing Date: 2008-06-10
Classification: B01J,G01N

Abstract:
1. A method of producing a substrate having a patterned organosilane layer, comprising: coating organosilane directly on a substrate to obtain an organosilane layer, wherein the substrate is made of a material selected from the group consisting of silicon, glass, silica, diamond, quartz, alumina, platinum, gold, aluminum, tungsten, titanium, polyester, polyamide, polyimide, polyether, polysulfone, and fluoropolymer, wherein the organosilane is selected from the group consisting of aminosilane, epoxysilane, and fluorosilane; coating a photoresist material on the organosilane layer; exposing the photoresist material to light through a mask to obtain a patterned surface on the photoresist material; developing an exposed or unexposed region of the photoresist material using a developer; and wet etching a portion of the organosilane layer in the region from which the photoresist material has been removed, using a HF-containing solution as an etchant.