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:
Jan. 23, 2024
Filed:
Jun. 29, 2022
Lumentum Japan, Inc., Sagamihara, JP;
Ryu Washino, Kanagawa, JP;
Yoshihiro Nakai, Kanagawa, JP;
Yuma Endo, Sagamihara, JP;
Saori Hizume, Kanagawa, JP;
Lumentum Japan, Inc., Kanagawa, JP;
Abstract
A semiconductor optical device includes: a buried layer having a side surface, an upper surface, and an intermediate region; an insulating film on the upper surface of the buried layer; and an electrode including a mesa electrode, a pad electrode, and a lead-out electrode. The upper surface of the buried layer has an outer edge including a first edge extending along the first direction and a second edge extending along a second direction. The intermediate region includes an upright surface that stands straight between the side surface and the first edge, and a slope surface that slopes more gently than the upright surface and extends downward from the second edge. The lead-out electrode includes a portion on the insulating film and connected to the pad electrode, another portion on the intermediate region and through the slope surface, and another portion connected to the mesa electrode.