Patent ID: 6256441
Filing Date: 2001-07-03
Classification: G02B,G03F

Abstract:
A method of manufacturing an optical waveguide, comprising the steps of:forming a separation film on a substrate transparent to light having a specific wavelength;forming a lower clad layer on said separation film;forming a light cutoff film, which cuts off said light having the specific wavelength, on said lower clad layer;patterning said light cutoff film into a pattern having openings;forming a core layer, which is made from a material hardened by irradiation of said light having the specific wavelength, on said light cutoff film;irradiating said core layer with said light having the specific wavelength from said substrate side, to harden portions, positioned at said openings of said light cutoff film, of said core layer;removing non-hardened portions of said core layer, to render said hardened portions left as core portions;removing said light cutoff film;forming an upper clad layer to cover said lower clad layer and said core portions; andremoving said separation film, to collectively separate, from said substrate, said lower clad layer, the pattern of said core portions, and said upper clad layer which are formed on said separation film.