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:
May. 16, 2017
Filed:
Sep. 18, 2015
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Sang-Yun Kim, Hwaseong-si, KR;
Jong-Pil Son, Seongnam-si, KR;
Su-A Kim, Seongnam-si, KR;
Chul-Woo Park, Yongin-si, KR;
Hong-Sun Hwang, Suwon-si, KR;
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G11C 11/406 (2006.01); G11C 11/408 (2006.01); G11C 11/4096 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40615 (2013.01); G11C 11/408 (2013.01); G11C 11/4096 (2013.01); G11C 11/40611 (2013.01); G11C 11/40618 (2013.01); G11C 11/40622 (2013.01); G11C 2211/4061 (2013.01);
Abstract
A method of operating a volatile memory device includes storing address information of weak cell rows. According to some examples, after writing to a weak cell row, a refresh operation is performed on the weak cell row within a predetermined time. According to some examples, the writing operation to a weak cell row may be performed with a longer write recovery time than a write recovery time to normal cell rows.