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US 2019/0295610 A1Published application
Sub-threshold voltage leakage current tracking
AssigneeMicron Technology, Inc.
InventorsPaolo Fantini, Paolo Amato, Marco Sforzin
Life of this patent
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Abstract
An apparatus has an array of memory cells and a controller coupled to the array. The controller is configured to track a sub-threshold leakage current through a number of memory cells of the array and determine a threshold voltage based on the sub-threshold leakage current.
Claims29
An apparatus, comprising:
- an array of memory cells;
- a controller coupled to the array, wherein the controller is configured to:
- determine a sub-threshold leakage current through a number of memory cells of the array;
- and
- determine a threshold voltage based on the sub-threshold leakage current.
2 more elements
An apparatus comprising:
- a memory array;
- a controller coupled to the array, wherein the controller is configured to:
- determine a sub-threshold leakage current for the array;
- and
- determine whether to rejuvenate the array based on the sub-threshold leakage current.
2 more elements
An apparatus, comprising:
- an array of memory cells, comprising a number of different groups of cells, wherein each different group comprises a first group of cells and a number of second groups of cells;
- a controller coupled to the array and configured to:
- wear level each different group;
- and
- for each respective different group:
- determine a respective leakage current for the first group of cells;
- and
- determine a respective sensing voltage for the number of second groups of cells based on the respective determined leakage current.
5 more elements
A method, comprising:
- determining a sub-threshold leakage current through a first number of memory cells;
- determining a threshold voltage based on the sub-threshold leakage current;
- and
- reading at least a second number of memory cells using the threshold voltage.
1 more element
Dependencies are inferred from the claim text.