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. 12, 2014
Filed:
May. 31, 2012
Ching-te Chuang, New Taipei, TW;
Shyh-jye Jou, Hsinchu County, TW;
Wei Hwang, Taipei, TW;
Ming-chien Tsai, Kaohsiung, TW;
Yi-wei Lin, New Taipei, TW;
Hao-i Yang, Taipei, TW;
Ming-hsien Tu, Tainan, TW;
Wei-chiang Shih, Taipei, TW;
Nan-chun Lien, Hsinchu, TW;
Kuen-di Lee, Kinmen County, TW;
Ching-Te Chuang, New Taipei, TW;
Shyh-Jye Jou, Hsinchu County, TW;
Wei Hwang, Taipei, TW;
Ming-Chien Tsai, Kaohsiung, TW;
Yi-Wei Lin, New Taipei, TW;
Hao-I Yang, Taipei, TW;
Ming-Hsien Tu, Tainan, TW;
Wei-Chiang Shih, Taipei, TW;
Nan-Chun Lien, Hsinchu, TW;
Kuen-Di Lee, Kinmen County, TW;
National Chiao Tung University, Hsinchu, TW;
Abstract
The present invention provides an oscillator which is based on a 6T SRAM for measuring the Bias Temperature Instability. The oscillator includes a first control unit, a first inverter, a second control unit, and a second inverter. The first control unit is coupled with the first inverter. The second control unit is coupled with the second inverter. The first control unit and the second control unit is used to control the first inverter and the second inverter being selected, biased, and connected respectively, so that the NBTI and the PBTI of the SRAM can be measured separately, and the real time stability of the SRAM can be monitored immediately.