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:
Jun. 21, 2011
Filed:
Feb. 08, 2010
Mickael Denais, Grenoble, FR;
Mickael Denais, Grenoble, FR;
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Abstract
A clock circuit for an integrated circuit having at least one MOS transistor. The clock circuit includes a first circuit for inducing a degradation of the transistor as a function of time and means for measuring a parameter of the transistor that reflects a lowering of the performance of the transistor resulting from the degradation. This also includes a method of generating a counting value of clock circuit by inducing continuous degradation of an MOS transistor. The method could include measuring a parameter of transistor, reflecting a lowering of performance of transistor resulting from said degradation. The method could also include measuring the temperature and calculating the counting value of the clock from the value of said parameter, from the measured temperature and from a law of variation of the parameter as a function of time and temperature.