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Title:
VARIABLE CAPACITY ELEMENT AND RESONANCE CIRCUIT
Document Type and Number:
Japanese Patent JP2011138544
Kind Code:
A
Abstract:

To provide a variable capacity element having a simpler configuration and excellent resistance to received voltage.

The variable capacity element includes a ferroelectric layer made of ferroelectric material, and two electrodes provided to sandwich the ferroelectric layer. The ferroelectric layer has characteristics such that it varies in capacity upon the application of a received signal of a predetermined frequency that is input from the outside, and that as the value of the received voltage increases within a predetermined voltage range within the range of variation of the received voltage value of the received signal, its volume decreases or increases.


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JPH0589662MANUFACTURE OF SEMICONDUCTOR DEVICE
JPH05159623AMORPHOUS FERROELECTRIC OXIDE MATERIAL AND MANUFACTURE THEREOF
Inventors:
KANNO MASAKI
HANYU KAZUTAKA
WATANABE MAKOTO
YOKOTA TOSHIAKI
Application Number:
JP2011055427A
Publication Date:
July 14, 2011
Filing Date:
March 14, 2011
Export Citation:
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Assignee:
SONY CORP
International Classes:
H01G7/06; G06K19/07; H04B5/02
Domestic Patent References:
JP2001160122A2001-06-12
JP2001005938A2001-01-12
JPH07335490A1995-12-22
JP2006303219A2006-11-02
Foreign References:
WO2006132570A12006-12-14
Attorney, Agent or Firm:
Shinto International Patent Office



 
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