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.

Date of Patent:
Jun. 15, 2021

Filed:

Apr. 24, 2020
Applicants:

SK Hynix Inc., Icheon, KR;

Seoul National University R&db Foundation, Seoul, KR;

Inventors:

Eojin Lee, Suwon, KR;

Ingab Kang, Seoul, KR;

Jung Ho Ahn, Seoul, KR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/406 (2006.01); G11C 11/4076 (2006.01); G11C 11/409 (2006.01); G11C 11/408 (2006.01); G11C 11/4072 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40622 (2013.01); G11C 11/409 (2013.01); G11C 11/4072 (2013.01); G11C 11/4076 (2013.01); G11C 11/4082 (2013.01); G11C 11/4085 (2013.01);
Abstract

A row hammer prevention circuit for providing a reference address to perform an additional refresh operation includes a history storage circuit configured to store one or more first addresses, each of the first addresses having been provided as the reference address. The row hammer prevention circuit further includes an address storage circuit configured to store a row address corresponding to an active command, a reference address storage circuit configured to store one or more second addresses, and a control circuit configured to provide the reference address in response to a refresh command.


Find Patent Forward Citations

Lee, Eojin. (2021). Row hammer prevention circuit, a memory module including the row hammer prevention circuit, and a memory system including the memory module (U.S. Patent No. 11037618). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11037618

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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