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. 31, 1989
Filed:
Mar. 30, 1988
Applicant:
Inventors:
Isamu Yamamoto, Itami, JP;
Jiro Fukushima, Itami, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437209 ; 437220 ; 437206 ; 437-2 ; 206330 ; 357 19 ; 29833 ;
Abstract
A method of constructing a semiconductor laser includes producing a lead frame having a central lead which is used as a die pad at its central portion and two outside leads connected to the central lead by tie bars, mounting a semiconductor laser chip and a light receiving chip on the central lead of the lead frame, connecting the semiconductor laser chip and the light receiving chip to respective outside leads with wires, sealing portions of the leads, the wires, and both chips in a transparent package, and cutting the tie bars to disconnect the outside leads from the central lead.