PIEZOELECTRIC ELECTRONIC COMPONENT, AND PRODUCTION METHOD THEREFOR, COMMUNICATION EQUIPMENT

Title:

PIEZOELECTRIC ELECTRONIC COMPONENT, AND PRODUCTION METHOD THEREFOR, COMMUNICATION EQUIPMENT

Document Type and Number:

WIPO Patent Application WO/2004/105237

Kind Code:

A1

Abstract:

A piezoelectric electronic component suitably used in a portable phone or the like, and able to be downsized and made low in profile. A piezoelectric element (3) vibrated by an applied input signal, for outputting an output signal by the vibration is formed on a substrate (1). The piezoelectric element (3) is provided with a pad unit (3c₁) for the above input and output signals. A shell member (5), as a sealing member consisting of an insulation film formed to cover the piezoelectric element (3) in a spaced-apart manner, is formed on the substrate (1). The shell member (5) has a through hole part (5a) above the pad unit (3c₁) or the like, and the through hole part (5a) is closed by an electrode unit (17).

Inventors:

KUBO RYUICHI (JP)
FUJII HIDETOSHI (JP)
AIZAWA NAOKO (JP)

Application Number:

PCT/JP2004/004992

Publication Date:

December 02, 2004

Filing Date:

April 07, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MURATA MANUFACTURING CO (JP)
KUBO RYUICHI (JP)
FUJII HIDETOSHI (JP)
AIZAWA NAOKO (JP)

International Classes:

H03H3/02; H03H3/08; H03H9/02; H03H9/10; H03H9/17; H03H9/25; (IPC1-7): H03H9/02; H03H9/25; H03H9/17; H03H3/02; H03H3/08; H01L41/107; H01L41/22

Foreign References:

JPH0497612A	1992-03-30
JPH09107263A	1997-04-22
JPH05267975A	1993-10-15
JPS58175314A	1983-10-14
JPS63177605A	1988-07-21
JP2001111371A	2001-04-20
JPH0497612A	1992-03-30
JP2002016466A	2002-01-18
JPH05267975A	1993-10-15

Other References: