Static information storage and retrieval – Floating gate – Particular biasing
Patent
1995-05-25
1996-09-17
Yoo, Do Hyun
Static information storage and retrieval
Floating gate
Particular biasing
36518524, 36518901, 365218, G11C 700
Patent
active
055575706
ABSTRACT:
Memory cells are arrange in the row and column directions in the form of a matrix. A transistor as a load is connected to column lines. A sense amplifier is connected to the transistor. In a read check operation, in which the data in the memory cells are erased, and the erased state of each memory cell is checked, all the row lines are set in a non-selected state by a row decoder, and all the column lines are selected by a column decoder. In this state the sum of currents flowing in the memory cells is detected by the sense amplifier. When the current detected by the sense amplifier becomes a predetermined value, a data erase operation is ended.
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Kabushiki Kaisha Toshiba
Yoo Do Hyun
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