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:
Dec. 13, 2016
Filed:
Nov. 25, 2014
International Business Machines Corporation, Armonk, NY (US);
Ning Lu, Essex Junction, VT (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
An approach includes deriving an uplift factor as a function of a width of the device for each leakage current component based on an amount of uncorrelated random variations in the leakage current component for one specific width and using the uplift factor as a multiplier for the leakage current component. The approach includes using the uplift factor for sub-threshold drain current as a multiplier of the sub-threshold drain current so that a lowering of nominal threshold voltage of the device occurs in a single simulation run. The approach further includes deriving a threshold voltage mismatch expression related to an amount of an uncorrelated random variation in sub-threshold drain current which is not directly inversely proportional to a square root of the width. The uplift factors and the threshold voltage mismatch expression within a model are used to predict statistical characteristics of the leakage current.