The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 1995
Filed:
Feb. 28, 1995
Fumiyo Narui, Kanagawa, JP;
Masafumi Ozawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A light emitting device is formed of a substrate, a first cladding layer on the substrate, an active layer on the first cladding layer, and a second cladding layer on the active layer. A carrier blocking layer also serving as an etching stopping layer during formation of the second cladding layer is provided between the active layer and the second cladding layer. Both sides of the second cladding layer are filled by a semiconductor layer having a resistance substantially higher than the other layers which the filler layer is in contact with. The first and second cladding layers, active layer, carrier blocking layer, and semiconductor layer of higher resistance comprise a II-VI compound semiconductor.