Patent ID: 6806040
Filing Date: 2004-10-19
Classification: G03F,Y10S

Abstract:
A method of forming a polymer optical waveguide pattern, comprising the steps of:applying and drying a photosensitive composition for optical waveguides; irradiating said resultant photosensitive composition thin film for optical waveguides with light through a mask; and directly forming a core-ridge pattern by wet etching said photosensitive composition thin film; wherein the photosensitive composition comprises an organic oligomer, said organic oligomer being a silicone oligomer represented by the following formula (1): wherein X denotes hydrogen, deuterium, halogen, an alkyl group or an alkoxy group; m is an integer from 1 to 5; x and y designate the proportion of respective units, and neither x nor y is 0; and R1 denotes a methyl, ethyl, or isopropyl group; a polymerization initiator which is an acid generator; and a crosslinking agent which is a separate, independent compound from said silicone oligomer.