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Patent Searching and Data


Title:
VARIABLE CAPACITOR COMPONENT
Document Type and Number:
Japanese Patent JP2010225611
Kind Code:
A
Abstract:

To provide a low-cost variable capacitor component having a coupling capacitor and variable capacitor with a less layer structure without using a varicap diode.

The variable capacitor component includes an insulating substrate 11, a pair of lower electrodes 12 pattern-formed on the insulating substrate 11, a ferroelectric thin film 13 pattern-formed on the insulating substrate 11 and lower electrodes 12, a pair of terminal electrodes 14 pattern-formed right above the pair of lower electrodes 12 and on the ferroelectric thin film 13 to structure a pair of coupling capacitors, an upper electrode 15 arranged so as to cross right above both of the pair of lower electrodes 12 and pattern-formed on the ferroelectric thin film 13 to structure the variable capacitor, and a pair of control voltage electrodes 16 pattern-formed on the ferroelectric thin film 13 and connected to the pair of lower electrodes 12.


Inventors:
Nakamura, Kenzo
Ishikawa, Mototaka
Application Number:
JP2009000067889
Publication Date:
October 07, 2010
Filing Date:
March 19, 2009
Export Citation:
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Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
H01G7/06
Domestic Patent References:
JP2005064437A
JP2007142109A
JP2008277996A
JP2008160047A
JP2007300002A
JP2005064437A
JP2007142109A
Attorney, Agent or Firm:
杉浦 秀幸