Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate
2005-07-26
2005-07-26
Jackson, Jerome (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
C257S081000, C257S098000
Reexamination Certificate
active
06921956
ABSTRACT:
An optical apparatus having a vertical light receiving element is disclosed. The optical apparatus is configured to couple light generated from a light source using the vertical light receiving element, then transforms the received light signals into an electric signal. The optical apparatus includes: a vertical photo detector having a photo-absorption layer; and an optical bench on which the photo detector is disposed. The optical bench having a first groove and a second groove formed adjacent to each other, the first groove having a predetermined inclination and being formed at an edge of a first surface of the optical bench, and the first surface being opposite to a second surface of the optical bench, on which the photo detector is disposed, such that a light signal incident to the first groove is refracted at a predetermined angle by the first groove; and the light signal, which has been refracted by the first groove, is totally reflected by the second groove. As a result, that the light signal is substantially and vertically incident into the photo-absorption layer.
REFERENCES:
patent: 5218223 (1993-06-01), Spaeth et al.
patent: 6246097 (2001-06-01), Kato et al.
patent: 6257772 (2001-07-01), Nakanishi et al.
Jeon Byung-Ok
Kang Hwa-Young
Rhee Do-Young
Yang Seung-Kee
Cha & Reiter L.L.C.
Jackson Jerome
Samsung Electronics Co,. Ltd.
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