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:
Mar. 04, 2025
Filed:
Apr. 06, 2023
Applicant:
Taiwan Semiconductor Manufacturing Company, Hsinchu, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/03 (2006.01); H03K 5/134 (2014.01); H03K 19/0185 (2006.01);
U.S. Cl.
CPC ...
H03K 3/0315 (2013.01); H03K 5/134 (2014.07); H03K 19/018521 (2013.01);
Abstract
A device including delay cells connected in series and in a feedback loop to provide a ring oscillator. At least one of the delay cells in the ring oscillator is a stacked gate delay cell that includes two or more PMOS transistors having first drain/source paths connected in series to each other and having first gates connected to each other and two or more NMOS transistors having second drain/source paths connected in series to each other and to the first drain/source paths and having second gates connected to each other and to the first gates.