Split voltage for NAND flash

Details Split voltage for NAND flash Split voltage for NAND flash

1997-12-18

1999-12-21

Nguyen, Tan T.

Static information storage and retrieval

Floating gate

Particular connection

36518518, 36518527, 36518528, G11C 1600

Patent

active

060058048

ABSTRACT:
An EEPROM NAND array has floating gate memory cells coupled in series, each having a control gate, a floating gate, a body region, and an insulating layer between the floating gate and the body region. A negative charge pump is coupled to the body region. In programming, the body region of the memory cell selected for programming is biased to a negative voltage by the negative charge pump while the control gate of the memory cell is biased to a predetermined positive voltage sufficient to induce Fowler-Nordheim tunneling from the body region into the floating gate. The present invention allows the programming voltage requirement at the control gate of a NAND EEPROM memory cell to be significantly reduced which allows for the peripheral voltage delivery circuitry in NAND EEPROM arrays to be designed for lower voltages than for conventional NAND EEPROM arrays.

REFERENCES:
patent: 4959812 (1990-09-01), Momodomi et al.
patent: 5179427 (1993-01-01), Nakayama et al.
patent: 5293337 (1994-03-01), Aritome et al.
patent: 5394372 (1995-02-01), Tanaka et al.
patent: 5514889 (1996-05-01), Cho et al.
patent: 5521864 (1996-05-01), Kobayashi et al.
patent: 5568420 (1996-10-01), Lim et al.
patent: 5572464 (1996-11-01), Iwasa
patent: 5600592 (1997-02-01), Atsumi et al.
patent: 5657271 (1997-08-01), Mori
patent: 5671176 (1997-09-01), Jang et al.
patent: 5708588 (1998-01-01), Haddad et al.
patent: 5742541 (1998-04-01), Tanigami et al.
patent: 5818758 (1998-10-01), Wojciechowski

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