Electricity: electrical systems and devices – Electrostatic capacitors – Variable
Reexamination Certificate
2005-11-29
2005-11-29
Reichard, Dean A. (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Variable
C361S272000, C361S278000, C361S279000, C361S283100, C361S290000, C361S292000
Reexamination Certificate
active
06970340
ABSTRACT:
The present invention is directed to a capacitor apparatus of the capacity variable type. This capacitor apparatus is manufactured by Micro Electro-Mechanical System technology, and comprises an insulating substrate (2) in which at least two capacitor electrodes (3), (4) are formed on one surface (2a) in the state where they are insulated each other, an actuator (5) formed by insulating material and having an external shape to bridge over the respective capacitor electrodes (3), (4), the actuator (5) being such that a conductor which respectively constitutes capacitors between the conductor (6) and these capacitor electrodes (3), (4), and drive means (7) for allowing this actuator (5) to undergo an operation to come into contact with one principal surface (2a) of the insulating substrate (2) or to become away therefrom.
REFERENCES:
patent: 5557495 (1996-09-01), Belcher et al.
patent: 5982608 (1999-11-01), Kalnitsky et al.
patent: 6242989 (2001-06-01), Barber et al.
patent: 6377438 (2002-04-01), Deane et al.
patent: 6606235 (2003-08-01), Chua et al.
patent: 09-082569 (1997-03-01), None
patent: 09-153436 (1997-06-01), None
Depke Robert J.
Ha Nguyen T.
Reichard Dean A.
Trexler, Bushnell, Glanglorgi, Blackstone & Marr
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