Single poly EPROM device with double control gates to...

Details Single poly EPROM device with double control gates to... Single poly EPROM device with double control gates to...

2005-12-21

2008-10-14

Nguyen, VanThu (Department: 2824)

Static information storage and retrieval

Floating gate

Disturbance control

C365S051000, C365S063000

Reexamination Certificate

active

07436701

ABSTRACT:
A single poly EPROM comprises a floating gate (10), a control gate (12), a source (16) and a drain (18). The control gate (12) is positioned laterally of a channel between the source (16) and the drain (18). The floating gate (10) is positioned above the channel and above the control gate (12). The single poly EPROM device further comprises an additional gate (40) above the floating gate (10) and a control. The control is connected to the additional gate (40) for controlling a voltage at the floating gate (10) in order to prevent the floating gate (10) from being unintentionally charged or discharged.

REFERENCES:
patent: 5790455 (1998-08-01), Caywood
patent: 5798548 (1998-08-01), Fujiwara
patent: 6433609 (2002-08-01), Voldman
patent: 6535430 (2003-03-01), Ogura et al.
patent: 2001/0025980 (2001-10-01), Bottini et al.

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