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. 25, 2017
Filed:
Jun. 26, 2014
Applicant:
Micron Technology, Inc, Boise, ID (US);
Inventors:
David J. McElroy, Owens Crossroads, AL (US);
Stephen L. Casper, Boise, ID (US);
Assignee:
Micron Technology, Inc., Boise, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 11/4091 (2006.01); G11C 7/06 (2006.01); G11C 7/12 (2006.01); G11C 11/4094 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4091 (2013.01); G11C 7/065 (2013.01); G11C 7/12 (2013.01); G11C 11/4094 (2013.01); G11C 2207/005 (2013.01);
Abstract
Voltage coupling/decoupling devices are provided within DRAM devices for improving the bias sensing of sense amplifiers and thus the refresh performance. The voltage coupling/decoupling devices couple or decouple bias voltage from corresponding digit lines coupled to the sense amplifiers. By coupling and decoupling voltage from the digit lines, the time interval between refresh operations can be increased.