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:
Feb. 13, 2024

Filed:

Mar. 12, 2021
Applicant:

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

Inventors:

Wei-Min Wu, Hsinchu, TW;

Ming-Dou Ker, Hsinchu, TW;

Chun-Yu Lin, Taipei, TW;

Li-Wei Chu, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01); H01L 29/74 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0248 (2013.01); H01L 29/7412 (2013.01); H01L 29/7436 (2013.01);
Abstract

An integrated circuit includes a T-coil circuit, a silicon-controlled rectifier (SCR), and a signal-loss prevention circuit. The T-coil circuit is coupled to an input/output (I/O) pad and an internal circuit. The SCR is coupled to the T-coil circuit and the internal circuit. The signal-loss prevention circuit is coupled to the T-coil circuit and the SCR. The signal-loss prevention circuit includes a resistor coupled to the T-coil circuit and the SCR. An electrostatic current flows through the resistor and turns on the SCR. The signal-loss prevention circuit may also include a diode circuit coupled to the T-coil circuit and the SCR. The diode circuit is configured to prevent signal loss.


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