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. 02, 2018
Filed:
Aug. 15, 2014
Synopsys, Inc., Mountain View, CA (US);
Jamil Kawa, Campbell, CA (US);
Tzong-Kwang Henry Yeh, Los Gatos, CA (US);
Shih-Yao Christine Sun, San Jose, CA (US);
Raymond Tak-Hoi Leung, Palo Alto, CA (US);
Synopsys, Inc., Mountain View, CA (US);
Abstract
A circuit is powered through a P-type transistor whose thermal instability behavior is to be evaluated. The threshold of the P-type transistor under evaluation and consequently the saturation current of the transistor are reflected in the frequency of the circuit, which in one embodiment is a ring oscillator. Additional circuitry is connected to the P-type transistor and the ring oscillator to ensure the proper stress conditions for the transistor and consequently to the evaluation of the P-type transistor.