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.

Date of Patent:
Apr. 06, 2021

Filed:

Feb. 13, 2019
Applicants:

Global Unichip Corporation, Hsinchu, TW;

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventors:

Ting-Hao Wang, Hsinchu, TW;

Pei-Ju Lin, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); H03K 3/03 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2856 (2013.01); H03K 3/0315 (2013.01);
Abstract

A chip includes at least one oscillator circuitry and a controller circuitry. The at least one oscillator circuitry is disposed at different locations of the chip, and respectively generates a plurality of oscillating signals. The controller circuitry transmits the oscillating signals to an external system, in order to determine a performance of the chip based on the oscillating signals. Each of the at least one oscillator circuitry includes a first oscillator circuit and a second oscillator circuit. The first oscillator circuit senses a variation of a semiconductor device in the chip, in order to generate a first oscillating signal of the oscillating signals. The second oscillator circuit senses a variation of a parasitic component in the chip, in order to generate a second oscillating signal of the oscillating signals.


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