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:
Aug. 23, 2016
Filed:
Feb. 08, 2016
Applicants:
Mingoo Seok, New York, NY (US);
Peter Kinget, Summit, NJ (US);
Teng Yang, New York, NY (US);
Inventors:
Assignee:
The Trustees of Columbia University in the City of New York, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 29/50 (2006.01); G11C 11/417 (2006.01);
U.S. Cl.
CPC ...
G11C 29/50004 (2013.01); G11C 11/417 (2013.01); G11C 29/50012 (2013.01); G11C 29/50016 (2013.01);
Abstract
Circuits for estimating threshold voltages of transistors in memory device bitcells are provided. The circuits use a multiplexer, a sensor switch network, a power switch network, and an NMOS device configured as a sensor to couple a desired one the transistors in the bitcells and the NMOS device to each other, to a test voltage, and to ground. A sensor voltage node can then be measured, and based on the resulting measurement, a threshold voltage for the transistor estimate.