Micron Technology Incorporated

Jayasree Nayar

Tomoko Ogura Iwasaki

Foroozan Sarah Koushan

Ji-Hye Gale Shin

A system includes a memory device and a processing device, operatively coupled with the memory device. The processing device is configured to perform operations that include determining a verify reference voltage associated with a logic state of a memory cell of the memory device, the verify reference voltage defining a target voltage level of a threshold voltage associated with the logic state; determining an amount of voltage compensation based on a thermal profile associated with a heat to be applied to the memory device, the thermal profile comprising a temperature associated with the heat and a period of time the heat is to be applied to the memory device; and updating the verify reference voltage using the amount of voltage compensation for an expected shift in the threshold voltage of the memory cell after the heat is applied to the memory device.

Managing pre-programming of a memory device for a reflow process

Memory devices might include an array of memory cells, a plurality of access lines, and a heater. The array of memory cells might include a plurality of strings of series-connected memory cells. Each access line of the plurality of access lines might be connected to a control gate of a respective memory cell of each string of series-connected memory cells of the plurality of strings of series-connected memory cells. The heater might be adjacent to an end of each access line of the plurality of access lines.

Memory devices including heaters

A logic state to be stored at a memory cell of a memory device is determined, where the logic state is to be represented by a threshold voltage stored at the memory cell. A verify reference voltage associated with the logic state is determined. The verify reference voltage defines a target voltage level of the threshold voltage associated with the logic state. The verify reference voltage is updated using an amount of compensation for an expected shift in the threshold voltage of the memory cell after heat is applied to the memory device. Before the heat is applied to the memory device, a plurality of sets of multiple programming pulses to the memory cell is applied until a threshold condition is satisfied. The threshold condition is associated with a relative magnitude of the threshold voltage of the memory cell to the updated verify reference voltage.

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Pleasanton, CA, United States of America

Jayasree Nayar