Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Charge transfer device
Patent
1995-06-16
1997-07-08
Crane, Sara W.
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Charge transfer device
257316, 257291, 257402, 257403, H01L 2978
Patent
active
056464282
ABSTRACT:
A depletion type transistor formed on a semiconductor substrate includes a drain region and a source region formed in distinct areas on the substrate. An inversion layer is formed in the surface area between the drain and the source regions. The transistor further includes two insulated gates: a floating gate located above the substrate and insulated from the inversion layer by an insulating layer in such a way as to cover the inversion layer, and a control gate provided above the floating gate and insulated from the floating gate by the insulating layer.
REFERENCES:
patent: 4830974 (1989-05-01), Chang et al.
patent: 4984045 (1991-01-01), Matsunaga
patent: 5262987 (1993-11-01), Kojima
patent: 5438211 (1995-08-01), Nakamura et al.
Crane Sara W.
Hardy David B.
Sanyo Electric Co,. Ltd.
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