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:
Jun. 15, 2010
Filed:
Oct. 10, 2008
Sarath D. Gunapala, Stevenson Ranch, CA (US);
David Z. Ting, Arcadia, CA (US);
Cory J. Hill, Pasadena, CA (US);
Sumith V. Bandara, Burke, CA (US);
Sarath D. Gunapala, Stevenson Ranch, CA (US);
David Z. Ting, Arcadia, CA (US);
Cory J. Hill, Pasadena, CA (US);
Sumith V. Bandara, Burke, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
An nBn detector is described where for some embodiments the barrier layer has a concentration gradient, for some embodiments the absorption layer has a concentration gradient, and for some embodiments the absorption layer is a chirped strained layer super lattice. The use of a graded barrier or absorption layer, or the use of a chirped strained layer super lattice for the absorption layer, allows for design of the energy bands so that the valence band may be aligned across the device. Other embodiments are described and claimed.