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:
Jul. 01, 2014
Filed:
Mar. 15, 2013
Jianan Yang, Austin, TX (US);
James D. Burnett, Austin, TX (US);
Mark W. Jetton, Austin, TX (US);
Thomas W. Liston, Austin, TX (US);
Jianan Yang, Austin, TX (US);
James D. Burnett, Austin, TX (US);
Mark W. Jetton, Austin, TX (US);
Thomas W. Liston, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A sensor circuit performs a method for sensing on-chip characteristics. The method includes generating a first voltage using a drive current through a first set of transistors that are operating in saturation mode and generating a second voltage using subthreshold leakage current from a second set of transistors that are in subthreshold mode. The method further includes comparing the second voltage to the first voltage to sense an on-chip characteristic. The sensed on-chip characteristic can be temperature and/or gate length variation.