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. 18, 2018
Filed:
Aug. 20, 2015
Semitronix Corporation, Hangzhou, CN;
Weiwei Pan, Hangzhou, CN;
Yongli Liu, Hangzhou, CN;
Xu Ouyang, Hangzhou, CN;
Yongjun Zheng, Hangzhou, CN;
Zheng Shi, Hangzhou, CN;
Lili Li, Hangzhou, CN;
Semitronix Corporation, Hangzhou, JP;
Abstract
An addressable ring oscillator test chip includes: a plurality of ring oscillator test units, and a peripheral structure including peripheral circuits and PADs. The peripheral circuits share a first power source and a first grounding. Each test unit is associated with an independent power source to thereby decrease voltage drop resulting from wiring and to reduce the influence from other test units. A method of generating a variety of ring oscillators includes: generating a cell template corresponding to a basic unit, including defining a parameterized cell template; generating a ring oscillator based on the cell template, including generating ring oscillators of different stages by selecting different parameters of the cell template; realizing internal connections of the ring oscillator; and generating an instantiated ring oscillator by replacing cell templates with corresponding basic units.