Patent
1984-10-29
1986-10-07
James, Andrew J.
357 54, H01L 2978
Patent
active
046162453
ABSTRACT:
An EEPROM cell which is programmed to a 1 or .0. binary state regardless of the prior state of the cell, that is, without erasing. The cell construction includes silicon nitride capacitors between the floating gate and the programming electrodes which enhances the programming characteristics and the endurance and permits the use of a relatively simple double layer polysilicon process and semiconductor structure.
REFERENCES:
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patent: 4274012 (1981-06-01), Simko
patent: 4314265 (1982-02-01), Simko
patent: 4334292 (1982-06-01), Kotecha
patent: 4486769 (1984-12-01), Simko
patent: 4532535 (1985-07-01), Gerber et al.
Sze, S. M., Physics of Semiconductor Devices, Wiley, New York, 1981, pp. 402-404.
Neugebauer et al., "Electrically Erasable Buried-Gate Nonvolatile Read-Only Memory", IEEE Transactions on Electron Devices, vol. ED-24, No. 5, May 1977.
Cynkar Thomas E.
Lockwood George C.
Topich James A.
Turi Raymond A.
Crane Sara W.
Hawk Jr. Wilbert
James Andrew J.
NCR Corporation
Salys Casimer K.
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