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:
Dec. 11, 2007
Filed:
Feb. 03, 2004
Tsuyoshi Kaneko, Shimosuwa-machi, JP;
Hajime Onishi, Chino, JP;
Tsuyoshi Kaneko, Shimosuwa-machi, JP;
Hajime Onishi, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
To provide a light-receiving element capable of high-speed operation including an optical member whose setting position, shape and size are advantageously controlled and its manufacturing method, and an optical module and an optical transmitting device including the light-receiving element, a light-receiving element includes a columnar part provided in a substrate. A top surface of the columnar part includes a receiving surface, and an optical member is provided on the top surface of the columnar part. The columnar part includes a first conductive type layer, a light absorbing layer, and a second conductive type layer. The light absorbing layer is formed between the first conductive type layer and the second conductive type layer.