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:
Mar. 05, 2019
Filed:
Jul. 25, 2017
Sumitomo Electric Industries, Ltd., Osaka, JP;
Yukihiro Tsuji, Yokohama, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
An integrated quantum cascade laser includes: a laser structure including first to third regions arranged in a direction of a first axis, the laser structure including a substrate and a laminate including a core layer; first and second metal layers disposed on the third region; third and fourth metal layers disposed on the first region; first to fourth bump electrodes disposed on the first to fourth metal layers, respectively; first and second semiconductor mesas provided in the first region, each of the first and second semiconductor mesas including the core layer; and a distributed Bragg reflector provided in the second region, the distributed Bragg reflector having one or more semiconductor walls. The first and second metal layers are electrically connected to the first and second semiconductor mesas, respectively. The third and fourth metal layers are isolated from the first and second metal layers.