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:
Dec. 01, 2015
Filed:
Jul. 27, 2012
Applicant:
Beau D. Barry, Boise, ID (US);
Inventor:
Beau D. Barry, Boise, ID (US);
Assignee:
Micron Technology, Inc., Boise, ID (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 11/4076 (2006.01); G11C 7/12 (2006.01); G11C 11/4094 (2006.01); H01L 27/108 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4076 (2013.01); G11C 7/12 (2013.01); G11C 11/4094 (2013.01); H01L 27/10876 (2013.01); H01L 27/10882 (2013.01); H01L 27/10885 (2013.01); H01L 27/10891 (2013.01);
Abstract
Examples described include precharge operations and circuitry for performing precharge operations. Digit lines may be driven to ground during a portion of example precharge operations. By driving the digit lines to ground, charge accumulating in bodies of vertical access devices may be discharged to the digit lines in some examples. To drive the digit lines to ground, a dynamic reference may be used where the reference is ground during one portion of the precharge operation and another value, which may be between two supply voltages (e.g. V/2), during another portion of the precharge operation.