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:
Jul. 04, 2023

Filed:

Oct. 22, 2021
Applicants:

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

Tsmc China Company, Limited, Shanghai, CN;

Tsmc Nanjing Company, Limited, Jiangsu, CN;

Inventors:

Lei Pan, Hsinchu, TW;

Yaqi Ma, Hsinchu, TW;

Jing Ding, Hsinchu, TW;

Zhang-Ying Yan, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H03K 17/6872 (2013.01); H01L 27/0251 (2013.01); H01L 27/0274 (2013.01);
Abstract

A Schmitt trigger circuit includes a first and second set of transistors, a first and second feedback transistor, and a first and second circuit. The first set of transistors is connected between a first voltage supply and an output node. The first voltage supply has a first voltage. The second set of transistors is connected between the output node and a second voltage supply. The second voltage supply has a second voltage. The first feedback transistor is connected to the output node, a first node and a second node. The second feedback transistor is connected to the output node, a third node and a fourth node. The first circuit is coupled to and configured to supply the second supply voltage to the second node. The second circuit is coupled to and configured to supply the first supply voltage to the fourth node.


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