Methods, devices, and systems for adjusting sensing voltages in devices
AssigneeMicron Technology, Inc.
InventorsWilliam H. Radke, Zhenlei Shen, Peter Feeley
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Abstract
The present disclosure includes methods, devices, and systems for adjusting sensing voltages in devices. One or more embodiments include memory cells, and a controller configured to perform a sense operation on the memory cells using a sensing voltage to determine a quantity of the memory cells having a threshold voltage (Vt) greater than the sensing voltage and adjust a sensing voltage used to determine a state of the memory cells based, at least partially, on the determined quantity of memory cells.
Claims24
A method for operating a device, comprising:
- determining a quantity of a number of memory cells having a threshold voltage greater than a particular voltage;
- comparing the determined quantity to a stored value;
- and
- adjusting a sensing voltage used to determine a state of the number of memory cells based, at least partially, on the comparison of the determined quantity to the stored value.
A device, comprising:
- memory cells;
- and
- a controller configured to:
- determine, for each of a number of voltages, a quantity of the memory cells having a threshold voltage greater than the respective voltage;
- determine a difference between two of the determined quantities;
- and
- adjust a sensing voltage used to determine a state of the memory cells based, at least partially, on the determined difference between the two determined quantities.
A device, comprising:
- memory cells;
- and
- a controller configured to:
- determine, for each of a number of voltages, a quantity of the memory cells having a threshold voltage greater than the respective voltage;
- determine differences between at least two of the determined quantities;
- and
- adjust a sensing voltage used to determine a state of the memory cells based, at least partially, on the determined differences between the at least two determined quantities.
A method for operating a device, comprising:
- determining a quantity of a number of memory cells having a threshold voltage greater than a particular voltage;
- comparing the determined quantity to a stored value;
- and
- adjusting a sensing voltage used to determine a state of the number of memory cells based, at least partially, on the comparison of the determined quantity to the stored value.
Dependencies are inferred from the claim text.