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:
Jan. 10, 2012
Filed:
Feb. 15, 2006
Matthew J. Renzi, Arlington, MA (US);
Brian F. Aull, Cambridge, MA (US);
Robert K. Reich, Tyngsborough, MA (US);
Bernard B. Kosicki, Acton, MA (US);
Matthew J. Renzi, Arlington, MA (US);
Brian F. Aull, Cambridge, MA (US);
Robert K. Reich, Tyngsborough, MA (US);
Bernard B. Kosicki, Acton, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A photodiode is provided by the invention, including an n-type active region and a p-type active region. A first one of the n-type and p-type active regions is disposed in a semiconductor substrate at a first substrate surface. A second one of the n-type and p-type active regions includes a high-field zone disposed beneath the first one of the active regions at a first depth in the substrate, a mid-field zone disposed laterally outward of the first active region at a second depth in the substrate greater than the first depth, and a step zone connecting the high-field zone and the mid-field zone in the substrate.