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:
Sep. 10, 2024
Filed:
Jul. 06, 2022
Changxin Memory Technologies, Inc., Hefei, CN;
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;
Abstract
The present disclosure provides an electrostatic discharge (ESD) protection circuit for a chip, including: a monitoring unit, configured to generate a trigger signal when there is an ESD pulse on a power supply pad; a discharge transistor, located between the power supply pad and a ground pad, and configured to be turned on under a control of the trigger signal, so as to discharge an electrostatic charge to the ground pad; and a first controllable voltage division unit, connected to the discharge transistor, and configured to switch an operating mode under a control of a control signal. The operating mode includes a voltage division mode. When operating in the voltage division mode, the controllable voltage division unit is configured to carry a part of a voltage applied by the electrostatic charge to the discharge transistor.