Title:
OPTICAL RECEIVER
Document Type and Number:
WIPO Patent Application WO/2023/022108
Kind Code:
A1
Abstract:
An optical receiver comprising a light-receiving element, a capacitor, a transimpedance, and a base. The light-receiving element comprises: a semiconductor layer; a first electrically conductive film electrically connected to a cathode electrode provided on a major surface of the semiconductor layer; a second electrically conductive film provided on the reverse side of the semiconductor layer from the major surface and electrically connected to the first electrically conductive film via an electrical conductor; and an anode pattern electrically connected to an anode electrode provided on the major surface of the semiconductor layer. The transimpedance includes a first pad electrically connected to the first electrically conductive film via a first wire, and a second pad electrically connected to the anode pattern via a second wire. The base has a major surface on which the light-receiving element and the transimpedance are mounted. A capacitance between the second electrically conductive film and the major surface of the base is greater than a parasitic capacitance between the first electrically conductive film and the second electrically conductive film, and an inductance of the electrical conductor is smaller than an inductance of the first wire.
Inventors:
MAEKAWA KYOHEI (JP)
HARA HIROSHI (JP)
HARA HIROSHI (JP)
Application Number:
PCT/JP2022/030764
Publication Date:
February 23, 2023
Filing Date:
August 12, 2022
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H04B10/69; H03F3/08
Foreign References:
| JP2015056704A | 2015-03-23 | |||
| JP2019186813A | 2019-10-24 | |||
| JP2006253676A | 2006-09-21 | |||
| US20150063832A1 | 2015-03-05 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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