Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 31, 2010
Patent Application Number
11878210
Date Filed
July 23, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A switch includes a movable portion, a first electrode and a second electrode. The movable portion is provided on a substrate and moves with respect to the substrate. The first electrode is provided on the movable portion. The second electrode is able to contact with the first electrode and is fixed to the substrate. f×Ro×C≦1.6×10−4 when an operation frequency is represented as “f” (Hz), a transmission impedance is represented as “Ro” (Ω), and a capacitance in “OFF” state between the first electrode and the second electrode is represented as “C” (F).
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