Title:
BOUNDARY ACOUSTIC WAVE DEVICE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2007/097151
Kind Code:
A1
Abstract:
Disclosed is a boundary acoustic wave device wherein loss is reduced. Specifically
disclosed is a boundary acoustic wave device (1) comprising a first medium (2),
a second medium (3) and an IDT electrode (4) arranged on the interface between
the first medium (2) and the second medium (3). The IDT electrode (4) has an Au layer
(11) as a main electrode layer, and an Ni layer (12) is arranged in contact with
at least one side of the Au layer. A part of Ni constituting the Ni layer (12) is diffused
into the Au layer (11) from the Ni-layer-side surface of the Au layer (11).
Inventors:
YAMAMOTO DAISUKE (JP)
KANDO HAJIME (JP)
TERAMOTO AKIHIRO (JP)
FUYUTSUME TOSHIYUKI (JP)
SAEKI MASAHIKO (JP)
KANDO HAJIME (JP)
TERAMOTO AKIHIRO (JP)
FUYUTSUME TOSHIYUKI (JP)
SAEKI MASAHIKO (JP)
Application Number:
PCT/JP2007/051004
Publication Date:
August 30, 2007
Filing Date:
January 23, 2007
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
YAMAMOTO DAISUKE (JP)
KANDO HAJIME (JP)
TERAMOTO AKIHIRO (JP)
FUYUTSUME TOSHIYUKI (JP)
SAEKI MASAHIKO (JP)
YAMAMOTO DAISUKE (JP)
KANDO HAJIME (JP)
TERAMOTO AKIHIRO (JP)
FUYUTSUME TOSHIYUKI (JP)
SAEKI MASAHIKO (JP)
International Classes:
H01L41/09; H03H9/145; H01L41/18; H03H3/08; H03H9/25
Domestic Patent References:
| WO2004070946A1 | 2004-08-19 | |||
| WO2001067600A1 | 2001-09-13 |
Foreign References:
| JPH08204493A | 1996-08-09 | |||
| JPH1041328A | 1998-02-13 | |||
| JP2001119259A | 2001-04-27 | |||
| JPH09223944A | 1997-08-26 |
Attorney, Agent or Firm:
MIYAZAKI, Chikara (5-4 Tanimachi 1-chome,, Chuo-ku, Osaka-sh, Osaka12, JP)
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