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:
Apr. 19, 2011
Filed:
Dec. 05, 2008
Applicants:
Toshiyuki Kawakami, Mihara, JP;
Yoshinobu Kawaguchi, Mihara, JP;
Takeshi Kamikawa, Tenri, JP;
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/10 (2010.01); H01L 33/16 (2010.01);
U.S. Cl.
CPC ...
Abstract
In a laser chipusing a nitride semiconductor having a hexagonal crystal structure, the −c plane is used as a first resonator facet A, which is the side of the laser chipthrough which light is emitted. On the first resonator facet A, that is, on the −c plane, a facet protection filmis formed. This ensures firm joint between the first resonator facet A and the facet protection filmand alleviates deterioration of the first resonator facet A.