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:
Apr. 18, 2017
Filed:
Mar. 12, 2015
Semiconductor device performing different types of refresh operations and method of driving the same
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
No-Guen Joo, Gyeonggi-do, KR;
Jae-Il Kim, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 8/00 (2006.01); G11C 11/406 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40611 (2013.01); G11C 11/40615 (2013.01); G11C 11/40618 (2013.01);
Abstract
A semiconductor device includes a 1st controller suitable for generating refresh control signals for controlling at least two types of refresh operations according to an external refresh signal; and a 2nd controller suitable for controlling the at least two types of refresh operations to be evenly and alternately performed on a plurality of word lines according to the refresh control signals, a predetermined number of times during a unit refresh period corresponding to the external refresh signal.