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:
Nov. 04, 2025

Filed:

Nov. 15, 2023
Applicants:

Global Unichip Corporation, Hsinchu, TW;

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

Inventors:

Yu-Lun Wan, Hsinchu, TW;

Bor-Yueh Liu, Hsinchu, TW;

Chen-Yuan Kao, Hsinchu, TW;

Ting-Yu Chen, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3185 (2006.01); G01R 31/317 (2006.01);
U.S. Cl.
CPC ...
G01R 31/318577 (2013.01); G01R 31/31727 (2013.01); G01R 31/318536 (2013.01);
Abstract

A testing circuit is provided. The testing circuit includes a clock cone, a series of shift register chains, and a control circuit. The clock cone is divided into a plurality of fan-out partitions operated in the same clock domain. The shift register chains are configured to shift out one-hot signals on demand and each shift register chain includes multiple registers with the same amount as fan-out partitions. The control circuit receives the one-hot signals from the shift register chains and enables the divided fan-out partitions therefore.


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