Sensing techniques using a moving reference

Abstract

The invention relates to sensing techniques using a moving reference. To sense the memory cell (e.g., to sense the signal associated with the memory cell), a first sense component may compare the signal with a first reference value. A reference selector may select a second reference value based on the comparison of the signal with the first reference value. A second sense component may compare thesignal with the second reference value. The logic state of the memory cell may be determined based on the results of the first comparison and the second comparison.

Description

[0001] cross reference [0002] This patent application claims priority to U.S. Patent Application Serial No. 16 / 232,317, filed December 26, 2018, by Raad et al., entitled SENSING TECHNIQUES USING A MOVING REFERENCE, Said US patent application is assigned to the present assignee and is expressly incorporated herein by reference in its entirety. technical field [0003] The technical field relates to sensing techniques using moving references. Background technique [0004] The following generally relates to a system including at least one memory device, and more particularly to sensing techniques using a moving reference during a read operation of a memory cell. [0005] Memory devices are widely used to store information in various electronic devices such as computers, wireless communication devices, cameras, digital displays, and the like. Information is stored by programming different states of the memory device. For example, binary devices most often store one of two ...

AI Technical Summary

Problems solved by technology

A volatile memory device such as DRAM may lose its stored state over time unless it is periodically refreshed by an external power source

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