Light-receiving element, optical head using the same, and...

Details Light-receiving element, optical head using the same, and... Light-receiving element, optical head using the same, and...

2007-08-13

2010-11-02

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07826332

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.

REFERENCES:
patent: 5010246 (1991-04-01), Tsuyuguchi et al.
patent: 2005/0151216 (2005-07-01), Shirakawa et al.
patent: A 2003-309271 (2003-10-01), None
patent: A 2004-214291 (2004-07-01), None
patent: A 2005-5363 (2005-01-01), None
patent: A 2005-26260 (2005-01-01), None
patent: A 2005-45051 (2005-02-01), None
patent: A 2006-41456 (2006-02-01), None

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