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.
Patent No.:
Date of Patent:
Mar. 16, 1999
Filed:
Mar. 13, 1997
Mohamed Ben Chouikha, Auberbilliers, FR;
Guo Neng Lu, Grigny, FR;
Mohamed Sejil, Paris, FR;
Gerard Sou, Ivry-sur-Seine, FR;
University Pierre et Marie Curie, Paris Cedex, FR;
Abstract
A photodetector based on buried junctions includes a semiconductor structure with two successive p-n junctions, buried at increasing depths, assembled in pairs in opposition, and defining at least three layers. One of the layers is adjacent to a photosensitive portion of the surface of the photodetector. A reverse bias is applied to the junctions, and the values of at least two internal currents passing through such junctions is detected. The internal currents are generated by received light, with each of the junctions corresponding to a particular wavelength of the received light.