INTEGRATION-TYPE PHOTODETECTOR - NIPPON TELEGRAPH & TELEPHONE

Title:

INTEGRATION-TYPE PHOTODETECTOR

Document Type and Number:

Japanese Patent JPH06244449

Kind Code:

A

Abstract:

PURPOSE: To decrease the cross talk between photodetectors in an integration- type photodetector, which is formed by arranging light absorbing layers for two wavelengths on the same straight line and photodetectors integrating by an laser-irradiation organic metal epitaxy method.

CONSTITUTION: A wavelength filter region 40, which absorbs the light of a first wavelength and transmits a second wavelength, is provided between a first photodetector 39, which absorbs the light of the first wavelength, and a second photodetector 41, which absorbs the second wavelength. The first photodetector 39 which absorbs the first wavelength, and the second photodetector 41 which absorbs the second wavelength, are not arranged on the same straight line. The waveguide for connecting two photodetectors 39 and 41 is formed of the semiconductor 40, which absorbs the first wavelength.

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Inventors:

SUZUKI YASUHIRO
YAMADA TAKESHI
IGA RYUZO
SUGIURA HIDEO
NAGANUMA MITSURU

Application Number:

JP2944893A

Publication Date:

September 02, 1994

Filing Date:

February 18, 1993

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE

International Classes:

H01L31/0232; H01L31/10; (IPC1-7): H01L31/10; H01L31/0232

Attorney, Agent or Firm:

Toshiro Mitsuishi (1 person outside)

Previous Patent: Power generation and chemicals manufacture which use a fuel cell and which were integrated

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