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A Novel Low-Voltage Low-Power Programming Method for NAND Flash Cell by Utilizing Self-Boosting Channel Potential for Carrier Heating

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12 Author(s)
Wen-Jer Tsai ; Macronix Int. Co., Ltd., Hsinchu, Taiwan ; Huang, J.S. ; Ping-Hung Tsai ; Yan, S.G.
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A novel low-voltage low-power programming method for NAND Flash cell is presented. By utilizing the self-channel boosting technique, a sufficiently high local field is established in a NAND string that causes efficient hot-carrier injection. This method has been successfully demonstrated in the 75-nm-node floating-gate NAND cells, along with comprehensive studies on bias and timing effects. Requirements for high-voltage supporting devices, circuitry, and process in conventional Fowler-Nordheim programmed NAND cells are greatly mitigated. It would be very attractive for scaled NAND Flash technology in the future.

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Electron Devices, IEEE Transactions on  (Volume:58 ,  Issue: 6 )