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:
Jan. 04, 2022
Filed:
Sep. 04, 2020
Samsung Electronics Co., Ltd., Suwon-si, KR;
Junha Lee, Seoul, KR;
Seonkyoo Lee, Hwaseong-si, KR;
Jeongdon Ihm, Seongnam-si, KR;
Byunghoon Jeong, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A multi-chip package with reduced calibration time and an impedance control (ZQ) calibration method thereof are provided. A master chip of the multi-chip package performs a first ZQ calibration operation by using a ZQ resistor, and then, the other slave chips simultaneously perform second ZQ calibration operations with respect to data input/output (DQ) pads of the slave chips by using a termination resistance value of a DQ pad of the master chip on the basis of a one-to-one correspondence relationship with the DQ pad of the master chip. The multi-chip package completes ZQ calibration by performing two ZQ calibration operations, thereby decreasing a ZQ calibration time.