Patent ID: 8450128
Filing Date: 2013-05-28
Classification: H01S

Abstract:
1. A method for producing a semiconductor optical device, the method comprising the steps of: forming a semiconductor region on a substrate, the semiconductor region including a ridge structure; forming an insulating film on the semiconductor region; forming a non-photosensitive resin region on the insulating film, the non-photosensitive resin region having an opening on an upper surface of the ridge structure, the ridge structure being embedded with the non-photosensitive resin region; forming a first mask on the non-photosensitive resin region, the first mask having an opening that defines a scribe area; forming the scribe area by etching the non-photosensitive resin region using the first mask until the insulating film is exposed; after removing the first mask, forming an insulating layer by etching the insulating film using the non-photosensitive resin region as a mask, the insulating layer having a first opening on the upper surface of the ridge structure and a second opening in the scribe area; forming an electrode in the first opening of the insulating layer on the ridge structure and the non-photosensitive resin region to produce a substrate product; forming a scribe line on a surface of the semiconductor region in the scribe area of the substrate product; and cutting the substrate product along the scribe line to form a semiconductor laser bar, wherein the second opening of the insulating layer in the scribe area is located outside a device region for the semiconductor optical device, and the electrode is in direct contact with the upper surface of the ridge structure through the first opening of the insulating layer.