The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 30, 2016

Filed:

Apr. 17, 2015
Applicant:

Actlight S.a., Lausanne, CH;

Inventor:

Serguei Okhonin, Lausanne, CH;

Assignee:

ActLight S.A., Lausanne, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/49 (2006.01); H01L 31/113 (2006.01); H01L 31/0224 (2006.01);
U.S. Cl.
CPC ...
H01L 31/1136 (2013.01); H01L 31/022408 (2013.01);
Abstract

A photo detector comprising a first doped impurity region (adapted to receive a first voltage) disposed in or on a substrate; a body region, juxtaposed the first doped impurity region; a gate (adapted to receive a second voltage) spaced from a first portion of the body region; a light absorbing region, juxtaposed a second portion of the body region, includes a material which, in response to light incident thereon, generates carrier pairs including a first and second type carriers; a contact region (adapted to receive a third voltage) juxtaposed the light absorbing region; wherein, in response to incident light, the gate attracts first type carriers of the carrier pairs to the first portion of the body region which causes second carriers from the first doped impurity region to flow to the contact region, and the contact region attracts second type carriers.


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