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:
Oct. 26, 2010
Filed:
Nov. 29, 2008
Matthias Fertig, Altdorf, DE;
Nikolaj Moll, Zurich, CH;
Thomas E. Morf, Gross, CH;
Thomas Pflueger, Leinfelden, DE;
Jonas R. Weiss, Zurich, CH;
Matthias Fertig, Altdorf, DE;
Nikolaj Moll, Zurich, CH;
Thomas E. Morf, Gross, CH;
Thomas Pflueger, Leinfelden, DE;
Jonas R. Weiss, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A photo detector comprising a grating (PC). The grating (PC) is arranged on top of a surface of an active semiconductor layer. The grating (PC) is patterned in uninterrupted first strips (ST), that are arranged in a first direction (x) in a first predetermined interval (a), and second strips (ST), that are arranged in a second direction (y) in a second predetermined interval (b). The second strips (ST) each comprise at least one interruption in a region between each two neighboring first strips (ST) in form of a predetermined gap (d). Positively doped regions (P) and negatively doped regions (N) each are arranged as strips in parallel with the first strips (ST) such that in a region between each two neighboring first strips (ST) alternately either one of the positively doped regions (P) or one of the negatively doped regions (N) is arranged.