Patent ID: 8034545

Claim:
A patterning method comprising steps of: applying a radiation curable composition containing a siloxane resin onto a substrate and drying the composition to obtain a coating, exposing said coating to irradiation of light at a dose of 5-100 mJ/cm 2 via a mask, and removing the unexposed sections of said coating by development, wherein the siloxane resin is dissolved in an aprotic solvent containing ether-based solvent or ether acetate-based solvent, and wherein the siloxane resin includes a resin obtainable by hydrolytic condensation of a compound represented by the following general formula (8), an oligomer of compounds represented by the general formula (8) and/or a partial condensate of compounds represented by the general formula (8): SiX 4 (8) wherein X represents a hydrolyzable group, and wherein said resin obtainable by hydrolytic condensation includes a resin obtainable by hydrolytic condensation of a compound represented by the following general formula (1), an oligomer of compounds represented by general formula (1) and/or a partial condensate of compounds represented by general formula (1): R 1 n SiX 4-n (1) wherein R 1 represents an H or F atom, a group containing a B, N, Al, P, Si, Ge or Ti atom, or a C1-20 organic group, X represents a hydrolyzable group and n represents an integer of 1-2, with the proviso that when n is 2, each R 1 may be the same or different, and when n is 1-2, each X may be the same or different.