Patent ID: 7799588
Filing Date: 2010-09-21
Classification: G02B,G03F

Abstract:
1. A method of manufacturing an optical device that is made of silicon oxide and through which light is capable of passing, the method comprising: a first step of forming, on a substrate surface of a silicon substrate, an optical-device forming body that includes a plurality of columnar structures arranged in an arrangement direction on the substrate surface via a trench provided therebetween and an outline structure connected to and containing therein the plurality of columnar structures; a second step of oxidizing the optical-device forming body from a state where the optical-device forming body starts to be oxidized to a state where the columnar structure is oxidized; and a third step in which an unoxidized residual part of the outline structure in the second step is oxidized after the second step, so as to form an oxide block, wherein the third step includes restraining the outline structure from being deformed with respect to at least the arrangement direction of the columnar structures in the third step, the restraining being performed by a stopper.