Non-volatile storage cell

Details Non-volatile storage cell Non-volatile storage cell

1988-06-07

1992-08-11

Moffitt, James W.

Static information storage and retrieval

Systems using particular element

Semiconductive

36518901, 365185, 357 235, G11C 700, G11C 1140

Patent

active

051385732

ABSTRACT:
A non-volatile storage cell has (a) storage points which are insulated from one another and each having a stack of gates formed, in order, by a first insulant in contact with the substrate, a floating gate, a second insulant and a control gate, a source and a drain formed in substrate on either side of the stack and a channel, whose length is oriented in a direction (x) and (b) conductor lines serving to apply electric signals to the stacks of gates and the drains, the second insulant having, in a plane perpendicular to the surface of the substrate and containing the first direction (x), the shape of an inverted U within which is located the entire floating gate, the control gate also being shaped like an inverted U, without projection and within which is located the entire second insulant.

REFERENCES:
patent: 4661833 (1987-04-01), Mizutani
patent: 4734887 (1988-03-01), Sugatani
patent: 4803529 (1989-02-01), Masuoka

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