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:
Apr. 08, 2025
Filed:
Jun. 30, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Yeji Shin, Suwon-si, KR;
Tae-Hong Kwon, Suwon-si, KR;
Yoonjae Lee, Suwon-si, KR;
Seokin Hong, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
Disclosed is a charge pump of a flash memory, which includes a first stage pump that is connected between an output terminal and a first pump node, and a second stage pump that is connected between the first pump node and a second pump node. The first stage pump includes a first switch circuit that is connected between a power terminal and the first pump node and provides a power supply voltage to the first pump node in response to a first stage signal, in a normal operation, and a first pump circuit that generates a first pumping voltage by using a voltage of the first pump node in response to a first clock signal and provides the first pumping voltage to the output terminal. The first switch circuit blocks a current flow from the first pump node to the power terminal in a sudden power-off event.