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:
Nov. 07, 2023

Filed:

Dec. 28, 2021
Applicant:

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

Inventors:

Efrem Bolandrina, Alzano Lombardo, IT;

Ferdinando Bedeschi, Biassono, IT;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 11/22 (2006.01);
U.S. Cl.
CPC ...
G11C 11/2275 (2013.01); G11C 11/221 (2013.01); G11C 11/2259 (2013.01); G11C 11/2273 (2013.01); G11C 11/2255 (2013.01); G11C 11/2257 (2013.01);
Abstract

Techniques are described for maintaining a stable voltage difference in a memory device, for example, during a critical operation (e.g., a sense operation). The voltage difference to be maintained may be a read voltage across a memory cell or a difference associated with a reference voltage, among other examples. A component (e.g., a local capacitor) may be coupled, before the operation, with a node biased to a first voltage (e.g., a global reference voltage) to sample a voltage difference between the first voltage and a second voltage while the circuitry is relatively quiet (e.g., not noisy). The component may be decoupled from the node before the operation such that a node of the component (e.g., a capacitor) may be allowed to float during the operation. The voltage difference across the component may remain stable during variations in the second voltage and may provide a stable voltage difference during the operation.


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