Patent ID: 6929760

Claim:
A method for producing a polymer optical waveguide equipped with a plurality of alignment marks, said method comprising: a step of forming of a mold-forming resin material layer on a master template, which has convex portions for an optical waveguide and convex portions for a plurality of alignment marks formed thereon, peeling the resin material and then culling both ends of a mold so as to expose concave portions corresponding to convex portions for an optical waveguide and convex portions for alignment marks formed on the mold, to prepare said mold; a step of bringing a film used for a cladding layer having mold adherability into close contact with the mold; a step of contacting one end of the mold, with which the film used for the cladding layer is closely brought into contact, with an ultraviolet ray-curable resin or a heat-curable resin that will become a core, and then introducing the ultraviolet ray-curable resin or the heat-curable resin into the concave portions of the mold by capillary phenomenon; a step of curing the introduced ultraviolet ray-curable resin or heat-curable resin, and peeling the mold from the film used for the cladding layer; and a step of forming a second cladding layer on the film used for the cladding layer on which the core is formed.