FR2370387A1 - Dispositif a ondes de surfaces elastiques - Google Patents
Dispositif a ondes de surfaces elastiquesInfo
- Publication number
- FR2370387A1 FR2370387A1 FR7733779A FR7733779A FR2370387A1 FR 2370387 A1 FR2370387 A1 FR 2370387A1 FR 7733779 A FR7733779 A FR 7733779A FR 7733779 A FR7733779 A FR 7733779A FR 2370387 A1 FR2370387 A1 FR 2370387A1
- Authority
- FR
- France
- Prior art keywords
- wave device
- surface wave
- elastic surface
- substrate
- satisfying
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 abstract 2
- 229910012463 LiTaO3 Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6489—Compensation of undesirable effects
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02559—Characteristics of substrate, e.g. cutting angles of lithium niobate or lithium-tantalate substrates
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02614—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves
- H03H9/02622—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the surface, including back surface
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and reflections
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
L'invention concerne un dispositif à ondes de surface élastiques constitué par un substrat de LiTaO3 à coupe suivant l'axe cristallin X. Le substrat 90 a une épaisseur d satisfaisant l'expression :
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13372176A JPS53108256A (en) | 1976-11-09 | 1976-11-09 | Elastic surface wave device |
JP13372076A JPS5828770B2 (ja) | 1976-11-09 | 1976-11-09 | 弾性表面波装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2370387A1 true FR2370387A1 (fr) | 1978-06-02 |
FR2370387B1 FR2370387B1 (fr) | 1983-10-14 |
Family
ID=26467994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7733779A Granted FR2370387A1 (fr) | 1976-11-09 | 1977-11-09 | Dispositif a ondes de surfaces elastiques |
Country Status (5)
Country | Link |
---|---|
US (1) | US4163201A (fr) |
CA (1) | CA1089544A (fr) |
DE (2) | DE2750144C2 (fr) |
FR (1) | FR2370387A1 (fr) |
GB (1) | GB1594339A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998000913A1 (fr) * | 1996-07-01 | 1998-01-08 | Siemens Matsushita Components Gmbh & Co. Kg | Substrat pour composants fonctionnant avec des ondes de surface acoustiques |
WO2003041273A1 (fr) * | 2001-11-06 | 2003-05-15 | Infineon Technologies Ag | Dispositif de filtre et procede de fabrication d'un dispositif de filtre |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58119219A (ja) * | 1982-01-11 | 1983-07-15 | Hitachi Ltd | 弾性表面波装置 |
JPH0897675A (ja) * | 1994-09-28 | 1996-04-12 | Canon Inc | 弾性表面波素子及びその作製方法及びそれを用いた通信装置 |
SG108217A1 (en) * | 1998-12-29 | 2005-01-28 | Toshiba Kk | Surface acoustic wave device |
JP4541147B2 (ja) * | 2002-09-12 | 2010-09-08 | エヌエックスピー ビー ヴィ | バルク弾性波フィルタにおける通過帯域リップルを抑制する手段を有するバルク弾性波共振器 |
JP2005303980A (ja) * | 2004-03-15 | 2005-10-27 | Matsushita Electric Ind Co Ltd | 弾性表面波デバイスおよびその形成方法 |
WO2013115115A1 (fr) * | 2012-02-03 | 2013-08-08 | 株式会社村田製作所 | Elément d'onde de surface acoustique et module composé comprenant le même |
US10469056B2 (en) | 2015-08-25 | 2019-11-05 | Avago Technologies International Sales Pte. Limited | Acoustic filters integrated into single die |
US10020796B2 (en) * | 2015-08-25 | 2018-07-10 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (SAW) resonator |
US10523178B2 (en) * | 2015-08-25 | 2019-12-31 | Avago Technologies International Sales Pte. Limited | Surface acoustic wave (SAW) resonator |
US10177734B2 (en) | 2015-08-25 | 2019-01-08 | Avago Technologies International Sales Pte. Limited | Surface acoustic wave (SAW) resonator |
US9991870B2 (en) | 2015-08-25 | 2018-06-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (SAW) resonator |
US20170063330A1 (en) * | 2015-08-25 | 2017-03-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (saw) resonator |
US10536133B2 (en) | 2016-04-22 | 2020-01-14 | Avago Technologies International Sales Pte. Limited | Composite surface acoustic wave (SAW) device with absorbing layer for suppression of spurious responses |
US10090822B2 (en) * | 2015-08-25 | 2018-10-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Surface acoustic wave (SAW) resonator |
US20180337657A1 (en) * | 2015-09-25 | 2018-11-22 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Acoustic wave resonator having antiresonant cavity |
US20180241374A1 (en) * | 2015-09-25 | 2018-08-23 | Avago Technologies General Ip (Singapore) Pte. Ltd | Acoustic wave resonator having antiresonant cavity |
US9369111B1 (en) * | 2015-10-28 | 2016-06-14 | Resonant Inc. | Fabrication of surface acoustic wave filters having plate modes |
US10177735B2 (en) * | 2016-02-29 | 2019-01-08 | Avago Technologies International Sales Pte. Limited | Surface acoustic wave (SAW) resonator |
JP2018037719A (ja) * | 2016-08-29 | 2018-03-08 | 株式会社村田製作所 | 弾性波装置 |
US11183987B2 (en) * | 2019-09-26 | 2021-11-23 | Avago Technologies International Sales Pte. Limited | Acoustic resonator device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818382A (en) * | 1970-10-20 | 1974-06-18 | Raytheon Co | Surface wave delay line structures having reduced temperature coefficient of delay time |
FR2242814A1 (fr) * | 1973-09-04 | 1975-03-28 | Philips Nv | |
FR2261654A1 (fr) * | 1974-02-15 | 1975-09-12 | Thomson Csf | |
FR2284222A1 (fr) * | 1974-09-09 | 1976-04-02 | Tokyo Shibaura Electric Co | Appareil a ondes elastiques de surface |
FR2345854A1 (fr) * | 1976-03-22 | 1977-10-21 | Tokyo Shibaura Electric Co | Dispositif a ondes de surface elastiques |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5099289A (fr) * | 1973-12-28 | 1975-08-06 | ||
US4001767A (en) * | 1975-11-18 | 1977-01-04 | The United States Of America As Represented By The Secretary Of The Air Force | Low diffraction loss-low spurious response LiTaO3 substrate for surface acoustic wave devices |
-
1977
- 1977-11-08 CA CA290,391A patent/CA1089544A/fr not_active Expired
- 1977-11-09 DE DE2750144A patent/DE2750144C2/de not_active Expired
- 1977-11-09 FR FR7733779A patent/FR2370387A1/fr active Granted
- 1977-11-09 GB GB46614/77A patent/GB1594339A/en not_active Expired
- 1977-11-09 DE DE2760154A patent/DE2760154C2/de not_active Expired
- 1977-11-09 US US05/849,945 patent/US4163201A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818382A (en) * | 1970-10-20 | 1974-06-18 | Raytheon Co | Surface wave delay line structures having reduced temperature coefficient of delay time |
FR2242814A1 (fr) * | 1973-09-04 | 1975-03-28 | Philips Nv | |
FR2261654A1 (fr) * | 1974-02-15 | 1975-09-12 | Thomson Csf | |
FR2284222A1 (fr) * | 1974-09-09 | 1976-04-02 | Tokyo Shibaura Electric Co | Appareil a ondes elastiques de surface |
FR2345854A1 (fr) * | 1976-03-22 | 1977-10-21 | Tokyo Shibaura Electric Co | Dispositif a ondes de surface elastiques |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998000913A1 (fr) * | 1996-07-01 | 1998-01-08 | Siemens Matsushita Components Gmbh & Co. Kg | Substrat pour composants fonctionnant avec des ondes de surface acoustiques |
WO2003041273A1 (fr) * | 2001-11-06 | 2003-05-15 | Infineon Technologies Ag | Dispositif de filtre et procede de fabrication d'un dispositif de filtre |
US6943647B2 (en) | 2001-11-06 | 2005-09-13 | Infineon Technologies Ag | Bulk acoustic wave filter with a roughened substrate bottom surface and method of fabricating same |
Also Published As
Publication number | Publication date |
---|---|
DE2760154C2 (de) | 1984-12-20 |
DE2750144A1 (de) | 1978-05-18 |
DE2750144C2 (de) | 1984-09-20 |
FR2370387B1 (fr) | 1983-10-14 |
GB1594339A (en) | 1981-07-30 |
US4163201A (en) | 1979-07-31 |
CA1089544A (fr) | 1980-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name |