Electricity: electrical systems and devices – Electrostatic capacitors – Variable
Reexamination Certificate
2007-04-03
2010-02-23
Thomas, Eric (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Variable
C361S280000, C361S277000
Reexamination Certificate
active
07667946
ABSTRACT:
A tunable capacitor using an electrowetting phenomenon includes a first electrode; a second electrode which is spaced apart from the first electrode and faces the first electrode; a fluidic channel which is disposed between the first electrode and the second electrode; a first insulating layer which is disposed between the first electrode and the fluidic channel; and a conductive fluid which is disposed in the fluidic channel and moves along the fluidic channel when a direct current (DC) potential difference occurs between the first and second electrodes. Accordingly, it is possible to fabricate the tunable capacitor with the simplified fabrication process, good reliability and durability, and no restriction on the tuning range.
REFERENCES:
patent: 7031136 (2006-04-01), Hunt et al.
patent: 7158363 (2007-01-01), Beerling
patent: 7488908 (2009-02-01), Beerling
patent: 2004/0169992 (2004-09-01), Hunt et al.
patent: 2004/0264107 (2004-12-01), Hunt et al.
patent: 2005/0092606 (2005-05-01), Reich et al.
patent: 2006/0004328 (2006-01-01), Joergensen et al.
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patent: 2006/0227494 (2006-10-01), Beerling
Choi Seung-tae
Kim Woon-bae
Lee Jeong-yub
Lim Ji-hyuk
Park Eun-seok
Samsung Electronics Co,. Ltd.
Sinclair David M
Sughrue & Mion, PLLC
Thomas Eric
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