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:
Oct. 11, 1994
Filed:
Nov. 06, 1991
Applicant:
Inventors:
Akira Amano, Kanagawa, JP;
Yoichi Shindo, Kanagawa, JP;
Nobutaka Suganuma, Kanagawa, JP;
Katsue Nakata, Kanagawa, JP;
Assignee:
Fuji Electric Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 49 ;
Abstract
A laser diode in which a laser diode chip having a light-emitting end face is resin-encapsulated by means of an encapsulating resin layer constituted by an epoxy-based resin or the like. An end-face-breakage preventing layer formed of a silicon-based resin having a high coefficient of light absorption in the wavelength band of a laser beam and a high bond energy is formed on the light-emitting end face. The end-face-breakage preventing layer 10 has a thickness of approximately 20 to 30 .mu.m.