Memory device
AssigneeToshiba Memory Corporation
InventorAkira KATAYAMA
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a memory device, includes a memory cell; and a first circuit that performs a first read on the memory cell to generate a first voltage, performs a reference read on the memory cell to generate a second voltage, generates first data based on the first voltage and the second voltage, writes the first data in the memory cell on which the first read has been performed, performs a second read on the memory cell in which the first data has been written to generate a third voltage, and determines data that was stored in the memory cell when the first read was performed, based on the first voltage and the third voltage.
Claims19
A memory device, comprising:
- a memory cell;
- and
- a first circuit that
- performs a first read on the memory cell to generate a first voltage,
- performs a reference read on the memory cell to generate a second voltage,
- generates first data based on the first voltage and the second voltage,
- writes the first data in the memory cell on which the first read has been performed,
- performs a second read on the memory cell in which the first data has been written to generate a third voltage, and
- determines data that was stored in the memory cell when the first read was performed, based on the first voltage and the third voltage.
A method for controlling a memory device, the method comprising:
- performing a first read on a memory cell to generate a first voltage,
- performing a reference read on the memory cell to generate a second voltage,
- generating first data based on the first voltage and the second voltage,
- writing the first data in the memory cell on which the first read has been performed,
- performing a second read on the memory cell in which the first data has been written to generate a third voltage, and
- determining data that was stored in the memory cell when the first read was performed, based on the first voltage and the third voltage.
Dependencies are inferred from the claim text.