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:
Apr. 13, 2021

Filed:

Nov. 08, 2018
Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventors:

Daniele Vimercati, El Dorado Hills, CA (US);

Scott James Derner, Boise, ID (US);

Umberto Di Vincenzo, Capriate San Gervasio, IT;

Christopher Johnson Kawamura, Boise, ID (US);

Eric S. Carman, San Francisco, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/22 (2006.01);
U.S. Cl.
CPC ...
G11C 11/2273 (2013.01); G11C 11/221 (2013.01); G11C 11/2293 (2013.01);
Abstract

Methods, systems, and devices for operating a ferroelectric memory cell or cells are described. A ground reference scheme may be employed in a digit line voltage sensing operation. A positive voltage may be applied to a memory cell; and after a voltage of the digit line of the cell has reached a threshold, a negative voltage may be applied to cause the digit line voltages to center around ground before a read operation. In another example, a first voltage may be applied to a memory cell and then a second voltage that is equal to an inverse of the first voltage may be applied to a reference capacitor that is in electronic communication with a digit line of the memory cell to cause the digit line voltages to center around ground before a read operation.


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