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:
Oct. 14, 2025
Filed:
Dec. 15, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Minsu Jung, Suwon-si, KR;
Jindo Byun, Suwon-si, KR;
Joohwan Kim, Suwon-si, KR;
Eun Seok Shin, Suwon-si, KR;
Hyun-Yoon Cho, Suwon-si, KR;
Junghwan Choi, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
Disclosed is a memory device which includes a pull-up driver that is connected between a power supply voltage and a first node, a T-coil circuit that is connected between the first node and a second node, an external resistor, and a ZQ controller that performs a ZQ calibration operation on the pull-up driver. The ZQ controller includes a path selecting circuit that selects one node among the first node and the second node, a comparing circuit that compares a voltage of the one node selected by the path selecting circuit with a pull-up reference voltage and outputs a comparison result, and a code generating circuit that generates a pull-up code for driving the pull-up driver, based on the comparison result. While the pull-up code is generated, the external resistor is connected between the second node and a ground voltage.