Static information storage and retrieval – Floating gate – Multiple values
Reexamination Certificate
2011-04-05
2011-04-05
Ho, Hoai V (Department: 2827)
Static information storage and retrieval
Floating gate
Multiple values
C365S185180, C365S185210
Reexamination Certificate
active
07920421
ABSTRACT:
A semiconductor memory device includes a memory cell, a source line, and a source line control circuit. The memory cell includes a charge storage layer and a control gate and is capable of holding 2 levels or more levels of data. The source line is electrically connected to a source of the memory cell. The source line control circuit detects a current passed to the source line and controls a potential of the source line in accordance with a detected current amount in a reading operation or a verification operation of the data.
REFERENCES:
patent: 5654920 (1997-08-01), Watsuji et al.
patent: 5889702 (1999-03-01), Gaultier et al.
patent: 2002/0027233 (2002-03-01), Yamaki et al.
patent: 2002/0139999 (2002-10-01), Hirano
patent: 2008/0094903 (2008-04-01), Maejima et al.
patent: 2006-107709 (2006-04-01), None
Maejima Hiroshi
Nakamura Hiroshi
Ho Hoai V
Kabushiki Kaisha Toshiba
Norman James G
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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