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. 17, 2017
Filed:
Apr. 08, 2015
Applicant:
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/10 (2006.01); G11C 5/04 (2006.01); G11C 29/08 (2006.01); G11C 29/26 (2006.01); G11C 11/401 (2006.01);
U.S. Cl.
CPC ...
G11C 8/10 (2013.01); G11C 5/04 (2013.01); G11C 29/08 (2013.01); G11C 29/26 (2013.01); G11C 11/401 (2013.01);
Abstract
A memory module having an address mirroring function is provided. The memory module includes a register that allows mode registers of first memory chips of a first rank and mode registers of second memory chips of a second rank to be identically programmed in response to a mode register set (MRS) command during a rank-merged test mode. The register sets address signals, which are symmetrically connected to the first and second memory chips through through-via-holes (TVHs) or blind-via-holes (BVHs) of a printed circuit board, to be selectively mirrored.