Micro-electro-mechanical variable capacitor for radio...

Details Micro-electro-mechanical variable capacitor for radio... Micro-electro-mechanical variable capacitor for radio...

2006-01-24

2009-02-10

Wilczewski, M. (Department: 2822)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S414000, C257S415000, C257S595000, C438S052000, C438S048000, C438S053000

Reexamination Certificate

active

07489004

ABSTRACT:
A micro-electro-mechanical variable capacitor has a first and a second electrode, and a dielectric region arranged on the first electrode. An intermediate electrode is arranged on the dielectric region. The first electrode is fixed and anchored to a substrate, and the second electrode includes a membrane movable with respect to the first electrode according to an external actuation, in particular an electrostatic force due to an actuation voltage applied between an actuation electrode and the first electrode. The second electrode is suspended over the intermediate electrode in a first operating condition, and contacts the intermediate electrode in a second operating condition; in particular, in the second operating condition, a short-circuit is established between the second electrode and the intermediate electrode.

REFERENCES:
patent: 6661069 (2003-12-01), Chinthakindi et al.
patent: 7260424 (2007-08-01), Schmidt
patent: 2005/0194867 (2005-09-01), Kawakubo et al.
patent: 2005/0224916 (2005-10-01), Musalem et al.
patent: 2005/0242687 (2005-11-01), Kawakubo et al.
patent: 2006/0119227 (2006-06-01), Ikehashi
patent: 2006/0291134 (2006-12-01), Plowman et al.
patent: 2006/0291135 (2006-12-01), Musalem et al.
patent: WO 2004114345 (2004-12-01), None
Hijazi et al. “Design of a Superconducting MEM Shunt Switch for RF Applications”, Jun. 2003, IEEE Transactions of Applied Superconductivity, vol. 13, No. 2, pp. 696-699.
Tan et al. “A DC-Contact MEMS Shunt Switch”, Jun. 2002, IEEE Microwave and Wireless Components Letters, vol. 12, No. 6, pp. 212-214.

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