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. 16, 2012
Filed:
Dec. 01, 2010
Applicants:
Jin-wei Shi, Taipei, TW;
Feng-ming Kuo, Kaohsiung County, TW;
Inventors:
Jin-Wei Shi, Taipei, TW;
Feng-Ming Kuo, Kaohsiung County, TW;
Assignee:
National Central University, Jhongli, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/062 (2006.01); H01L 31/113 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure uses at least two cascaded photodetectors. Device area is increased to provide a bigger current than a single photodetector under the same bandwidth. Hence, bandwidth efficiency (BRP) and saturation current-bandwidth product (SCBP) are improved for a high speed, a high responsivity and a high bandwidth with simple structure and low cost.