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.

Date of Patent:
Jul. 15, 2025

Filed:

Jun. 08, 2020
Applicant:

Sony Semiconductor Solutions Corporation, Kanagawa, JP;

Inventors:

Hirohisa Yasukawa, Kanagawa, JP;

Nobuaki Kaji, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 5/024 (2006.01); H01S 5/02345 (2021.01); H01S 5/026 (2006.01);
U.S. Cl.
CPC ...
H01S 5/02345 (2021.01); H01S 5/02469 (2013.01); H01S 5/0261 (2013.01);
Abstract

An object of the present technique is to obtain excellent heat radiation characteristics with a simple structure in a semiconductor laser driving apparatus. A semiconductor laser driving apparatus includes a substrate, a laser driver, and a semiconductor laser. The substrate incorporates the laser driver. The semiconductor laser is mounted on one surface of the substrate. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. Side walls surround a region including the semiconductor laser on the surface of the substrate where the semiconductor laser is mounted. The side walls have a heat storage material therein.


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