Electricity: electrical systems and devices – Electrostatic capacitors – Variable
Reexamination Certificate
2011-08-23
2011-08-23
Pert, Evan (Department: 2826)
Electricity: electrical systems and devices
Electrostatic capacitors
Variable
C361S281000, C257S595000, C257SE29342
Reexamination Certificate
active
08004818
ABSTRACT:
The invention specifically concerns a device for varying the apparent level of a capacitance, said device being characterized in that it compromises: —a dipole (1) of a type known per se, comprising a semiconductor material (4) for electronic transfer via hopping situated between a first electrode (2) and a second electrode (6), with said dipole (1) situated parallel to said capacitance (12); —a continuous voltage generator (13) electrically connected to the second electrode (6) and the first electrode (2) of the dipole (1); —and a means for varying the voltage generated by the generator (13).
REFERENCES:
patent: 5558477 (1996-09-01), Browning et al.
patent: 2004/0207486 (2004-10-01), York
patent: WO 02/23633 (2002-03-01), None
Marc Beale et al., “The Origins and Characteristics of Negative Capacitance in Metal-Insulator-Metal Devices”, Phylosophical Magazine B, vol. 65, No. 1, Jan. 1992, pp. 47-64.
N.A. Penin, “Negative Capacitance in Semiconductor Structures”, Semiconductors AIP USA, vol. 30, No. 4, Apr. 1996, pp. 340-343.
Maxim Ershov et al., “Negative Capacitance Effect in Semiconductor Devices”, IEEE Transactions on Electron Devices, IEEE Service Center, Pisacataway, NJ, US, vol. 45, No. 10, Oct. 1998.
Godet Christian
Gudovskikh Alexander
Kleider Jean-Paul
Arent & Fox LLP
Centre National de la Recherche Scientifique "CNRS"
Pert Evan
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