Title:
生体成分検出装置
Document Type and Number:
Japanese Patent JP5422990
Kind Code:
B2
Abstract:
Provided is a biological component detection device with which a biological component can be detected at high sensitivity by using an InP-based photodiode in which a dark current is reduced without using a cooling mechanism and the sensitivity is extended to a wavelength of 1.8 µm or more. An absorption layer 3 has a multiple quantum well structure composed of group III-V semiconductors, a pn-junction 15 is formed by selectively diffusing an impurity element in the absorption layer, and the concentration of the impurity element in the absorption layer is 5 × 10 16 /cm 3 or less. The biological component detection device is characterized in that an examination is conducted by receiving light having at least one wavelength of 3 µm or less, the wavelength being included in an absorption band of the biological component.
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Inventors:
Yoichi Nagai
Yasuhiro Inoguchi
Yasuhiro Inoguchi
Application Number:
JP2008326276A
Publication Date:
February 19, 2014
Filing Date:
December 22, 2008
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
H01L31/10; A61B5/1455; B82Y15/00; B82Y20/00; G01J1/02; G01N21/17; G01N21/35; G01N21/3577; G01N21/359
Domestic Patent References:
| JP2008153311A | ||||
| JP200780920A | ||||
| JP631079A | ||||
| JP5160429A | ||||
| JP4771185B2 |
Attorney, Agent or Firm:
Patent Corporation Heart Cluster
Seiichi Watanabe
Seiichi Watanabe