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. 20, 2012
Filed:
Feb. 14, 2011
David Fattal, Palo Alto, CA (US);
Jason Blackstock, Palo Alto, CA (US);
Raymond Beausoleil, Palo Alto, CA (US);
David Fattal, Palo Alto, CA (US);
Jason Blackstock, Palo Alto, CA (US);
Raymond Beausoleil, Palo Alto, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method for forming a photodiode is provided. The method comprises: providing a region of semiconductor material having a first surface and a second surface; coupling a first conductive layer to the first surface of the semiconductor material; and coupling a second conductive surface to the second surface of the semiconductor material to form a photodiode, the second conductive surface comprising a metal surface having a two-dimensional periodic array of openings therethrough, wherein the photodiode is configured to be operated such that light is incident on the second conductive surface. A method for reducing the required thickness of a photodiode is also provided.