Patent ID: 6316280
Filing Date: 2001-11-13
Classification: H01S,Y10S

Abstract:
A method of manufacturing a semiconductor device comprising:forming a plurality of linear ridge patterns, each linear ridge pattern having a stripe shape, in a semiconductor substrate, including forming each linear ridge pattern by successively depositing an active layer and a cladding layer on a surface of said semiconductor substrate, forming an initial ridge of said active layer and said cladding layer, forming a current blocking layer beside and contacting side surfaces of said active layer and said cladding layer of the initial ridge, and covering said cladding layer and said current blocking layer of the initial ridge with a contact layer;filling spaces between said ridge patterns with an organic dielectric layer contacting said ridge patterns;covering all of each of said ridge patterns and parts of said organic dielectric layer with an insulating layer having an etching protecting pattern extending along said ridge patterns for avoiding over-etching along said ridge patterns;etching said organic dielectric layer, using said insulating layer as an etching mask, in an oxygen plasma, leaving said organic dielectric layer in the same form as said insulating layer;removing said insulating layer;forming respective surface electrodes on said ridge patterns and said organic dielectric layer and further forming counter electrodes corresponding to said surface electrodes on a side of said substrate opposite said active layer; andcutting said substrate along lines parallel and perpendicular to said ridge patterns to isolate a region including one of said ridge patterns and one of said electrodes, at least one of the lines corresponding to a cleavage plane of said semiconductor substrate.