Method of disposing selectively two types of substances on surface of substrate

Abstract

The present invention is a method of disposing selectively on a surface of a substrate a first substance having a hydrophilic surface and a second substance having a surface coated with a hydrocarbon group. The substrate has on the surface thereof a hydrophilic first region, a second region coated with a hydrocarbon group, and a third region coated with a fluorocarbon group. The method of the present invention includes the steps of; (1) applying a solution containing the first substance and an aqueous solvent to the substrate; (2) removing the aqueous solvent from the surface of the substrate so as to dispose the first substance on a surface of the first region; (3) dipping the substrate in a liquid containing alcohol having fluorine in its molecule; (4) applying a solution containing the second substance and an organic solvent to the surface of the substrate that has been dipped in the liquid; (5) pulling the substrate out of the liquid; and (6) removing the organic solvent from the surface of the substrate so as to dispose the second substance on a surface of the second region.

Dependencies are inferred from the claim text.