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:
Mar. 17, 2026
Filed:
Nov. 13, 2024
Samsung Electronics Co., Ltd., Suwon-si, KR;
Junha Lee, Suwon-si, KR;
Kyoungtae Kang, Suwon-si, KR;
Hyunsuk Kang, Suwon-si, KR;
Dongho Shin, Suwon-si, KR;
Kang Yoon Lee, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si, KR;
Abstract
A memory device includes data pads that are connected to an external memory controller, a ZQ pad that is connected to an external resistor, data drivers and receivers that are connected to the data pads and output first data signals to the data pads or receive second data signals from the data pads, and a ZQ calibrator that is connected to the ZQ pad. The memory device performs ZQ calibration based on a voltage of the ZQ pad, generates ZQ codes as a result of the ZQ calibration, and provides the ZQ codes to the data drivers and receivers. The ZQ calibrator performs a first-type ZQ calibration in response to a command received from the external memory controller and performs a second-type ZQ calibration without the command being received from the external memory controller.