Invention Grant
US07826332B2 Light-receiving element, optical head using the same, and optical recording/reproducing apparatus using the same
有权
光接收元件,使用其的光学头,以及使用该光接收元件的光学记录/再现装置
- Patent Title: Light-receiving element, optical head using the same, and optical recording/reproducing apparatus using the same
- Patent Title (中): 光接收元件,使用其的光学头,以及使用该光接收元件的光学记录/再现装置
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Application No.: US11889444Application Date: 2007-08-13
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Publication No.: US07826332B2Publication Date: 2010-11-02
- Inventor: Tomohiko Ishida , Jun Ono
- Applicant: Tomohiko Ishida , Jun Ono
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-229510 20060825
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
There are provided a light-receiving element for receiving light reflected from an optical recording medium, an optical head using the element, and an optical recording/reproducing apparatus using the element. In particular, the light-receiving element can be manufactured at low cost and in a simple manner and is configured to receive light from a short-wavelength laser source (having a wavelength of 402 nm to 413 nm). The light-receiving element includes a silicon substrate in which a light-receiving portion is formed; a circuit board for mounting the silicon substrate; at least one or more wires for electrically connecting the silicon substrate and the circuit board; a cover layer for covering the wires; and an exposed portion for exposing the light-receiving portion outside.
Public/Granted literature
Information query
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