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:
Apr. 12, 2011
Filed:
Oct. 13, 2006
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
Embodiments of the invention provide a method and an apparatus for forming a photodiode. One embodiment provides a thin dielectric layer sandwiched between two metallic plates (electrodes), one or both of which are periodically patterned in one or two dimensions. The effect of the pattern is to couple incident light within some range of wavelength and/or incidence angles to surface excitations of the metal surface called surface plasmons, enhancing the electric field near the surface and resulting in dramatically increased photo-absorption and carrier generation in the dielectric layer.