Patent ID: 7955880
Filing Date: 2011-06-07
Classification: H01S

Abstract:
1. A method of producing a semiconductor optical device comprising: a first step of growing a stacked semiconductor layer including a first III-V group compound semiconductor layer for an active layer on a substrate; a second step of forming a silicon oxide film on the stacked semiconductor layer, the silicon oxide film having a predetermined film stress and a predetermined thickness; a third step of forming a strip-shaped groove in the silicon oxide film by etching the silicon oxide film, using a resist pattern formed on the silicon oxide film, until a surface of the stacked semiconductor layer is exposed; and a fourth step of growing a second III-V group compound semiconductor layer in the groove using the silicon oxide film as a selective mask, wherein the silicon oxide film is formed using inductively coupled plasma CVD equipment, and the film stress of the silicon oxide film is adjusted by controlling the bias power of the inductively coupled plasma CVD equipment.