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. 03, 2015
Filed:
Feb. 28, 2011
Daniel Yap, Newbury Park, CA (US);
Rajesh D. Rajavel, Oak Park, CA (US);
Sarabjit Mehta, Calabasas, CA (US);
Hasan Sharifi, Agoura Hills, IR;
Daniel Yap, Newbury Park, CA (US);
Rajesh D. Rajavel, Oak Park, CA (US);
Sarabjit Mehta, Calabasas, CA (US);
Hasan Sharifi, Agoura Hills, IR;
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
An infrared photo-detector with multiple discrete regions of a first absorber material. These regions may have geometric shapes with sloped sidewalls. The detector also may include a second absorber region comprising a second absorber material that absorbs light of a shorter wavelength than the light absorbed by the multiple discrete absorber regions of the first absorber material. The geometric shapes may extend only through the first absorber material. Alternatively, the geometric shapes may extend partially into the second absorber region. The detector has a metal reflector coupled to the multiple discrete absorber regions. The detector also has a substrate containing the discrete absorber regions and the second absorber region. The substrate can further include geometric shaped features etched into the substrate, with those features formed on the side of the substrate opposite the side containing the discrete absorber regions and the second absorber region.