JPS6478511A - Surface acoustic wave device - Google Patents
Surface acoustic wave deviceInfo
- Publication number
- JPS6478511A JPS6478511A JP23482087A JP23482087A JPS6478511A JP S6478511 A JPS6478511 A JP S6478511A JP 23482087 A JP23482087 A JP 23482087A JP 23482087 A JP23482087 A JP 23482087A JP S6478511 A JPS6478511 A JP S6478511A
- Authority
- JP
- Japan
- Prior art keywords
- saw filter
- acoustic wave
- surface acoustic
- stripe
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To obtain a SAW filter transducer electrode material with lower resistivity than that of aluminum by using a superconduction thin film as a transducer electrode material of the SAW filter. CONSTITUTION:The surface acoustic wave SAW filter consists of a piezoelectric substance 1-1, an interdigital transducer 1-2, a stripe 103, a lead wire 1-4 and terminals 1-5, 1-6. The stripe 103 constitutes an IDT 102 and the type of material is superconduction ceramic thin film. Thus, the electric resistance of the IDT electrode of the SAW filter is made principally zero. Then the insertion loss of the SAW filter is considerably reduced than the case with using aluminum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23482087A JPS6478511A (en) | 1987-09-21 | 1987-09-21 | Surface acoustic wave device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23482087A JPS6478511A (en) | 1987-09-21 | 1987-09-21 | Surface acoustic wave device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478511A true JPS6478511A (en) | 1989-03-24 |
Family
ID=16976898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23482087A Pending JPS6478511A (en) | 1987-09-21 | 1987-09-21 | Surface acoustic wave device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478511A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0548371A (en) * | 1991-08-12 | 1993-02-26 | Mitsubishi Electric Corp | Surface acoustic wave circuit |
USRE37375E1 (en) | 1991-10-28 | 2001-09-18 | Fujitsu Limited | Surface acoustic wave filter |
USRE40036E1 (en) | 1991-10-28 | 2008-01-29 | Fujitsu Limited | Surface acoustic wave filter |
-
1987
- 1987-09-21 JP JP23482087A patent/JPS6478511A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0548371A (en) * | 1991-08-12 | 1993-02-26 | Mitsubishi Electric Corp | Surface acoustic wave circuit |
USRE37375E1 (en) | 1991-10-28 | 2001-09-18 | Fujitsu Limited | Surface acoustic wave filter |
USRE37790E1 (en) | 1991-10-28 | 2002-07-16 | Fujitsu Limited | Surface acoustic wave filter |
USRE40036E1 (en) | 1991-10-28 | 2008-01-29 | Fujitsu Limited | Surface acoustic wave filter |
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