JP6360847B2 - 弾性波デバイス - Google Patents
弾性波デバイス Download PDFInfo
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- JP6360847B2 JP6360847B2 JP2016055379A JP2016055379A JP6360847B2 JP 6360847 B2 JP6360847 B2 JP 6360847B2 JP 2016055379 A JP2016055379 A JP 2016055379A JP 2016055379 A JP2016055379 A JP 2016055379A JP 6360847 B2 JP6360847 B2 JP 6360847B2
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- 239000000758 substrate Substances 0.000 claims description 105
- 239000000203 mixture Substances 0.000 claims description 49
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 claims description 11
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 17
- 229910052744 lithium Inorganic materials 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010897 surface acoustic wave method Methods 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
- H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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 elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/08—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of resonators or networks using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
- H03H9/0547—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a vertical arrangement
- H03H9/0561—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a vertical arrangement consisting of a multilayered structure
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
- H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
- H03H9/1092—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a cover cap mounted on an element forming part of the surface acoustic wave [SAW] device on the side of the IDT's
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/25—Constructional features of resonators using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
- H03H9/72—Networks using surface acoustic waves
- H03H9/725—Duplexers
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
10a 第1領域
10b 第2領域
10c 第3領域
11 支持基板
21 IDT
Claims (9)
- 単結晶圧電材料からなり、上面を含む第1領域と前記第1領域下に設けられ前記第1領域より密度が低い第2領域とを備える圧電基板と、
前記圧電基板の前記上面上に設けられたIDTと、
を具備し、
前記第2領域の厚さは前記IDTにおける一対の櫛型電極のうち一方の櫛型電極の電極指のピッチの20倍以上である弾性波デバイス。 - 前記第2領域の下に接合され、前記第2領域より音速の速い支持基板を具備する請求項1記載の弾性波デバイス。
- 単結晶圧電材料からなり、上面を含む第1領域と前記第1領域下に設けられ前記第1領域より密度が低い第2領域とを備える圧電基板と、
前記圧電基板の前記上面上に設けられたIDTと、
を具備し、
前記圧電基板は支持基板上に接合されていない弾性波デバイス。 - 前記第2領域における音速は前記第1領域における音速より速い請求項1から3のいずれか一項記載の弾性波デバイス。
- 前記圧電基板は、タンタル酸リチウム基板またはニオブ酸リチウム基板であり、
前記第1領域はコングルエント組成であり、前記第2領域はストイキオメトリ組成である請求項1から4のいずれか一項記載の弾性波デバイス。 - 前記圧電基板は、前記第1領域と前記第2領域との間に設けられ、前記第1領域から前記第2領域にかけて密度が変化する第3領域を備える請求項1から5のいずれか一項記載の弾性波デバイス。
- 前記第1領域の厚さは前記IDTにおける一対の櫛型電極のうち一方の櫛型電極の電極指のピッチ以上である請求項1から6のいずれか一項記載の弾性波デバイス。
- 前記IDTを有するフィルタを含む請求項1から7のいずれか一項記載の弾性波デバイス。
- 請求項8記載の前記フィルタを含むマルチプレクサを含む弾性波デバイス。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016055379A JP6360847B2 (ja) | 2016-03-18 | 2016-03-18 | 弾性波デバイス |
US15/447,691 US10187035B2 (en) | 2016-03-18 | 2017-03-02 | Acoustic wave device |
KR1020170030419A KR101913933B1 (ko) | 2016-03-18 | 2017-03-10 | 탄성파 디바이스 |
CN201710141175.8A CN107204750B (zh) | 2016-03-18 | 2017-03-10 | 声波器件 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2016055379A JP6360847B2 (ja) | 2016-03-18 | 2016-03-18 | 弾性波デバイス |
Publications (2)
Publication Number | Publication Date |
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JP2017169172A JP2017169172A (ja) | 2017-09-21 |
JP6360847B2 true JP6360847B2 (ja) | 2018-07-18 |
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Country Status (4)
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US (1) | US10187035B2 (ja) |
JP (1) | JP6360847B2 (ja) |
KR (1) | KR101913933B1 (ja) |
CN (1) | CN107204750B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10700662B2 (en) * | 2017-12-28 | 2020-06-30 | Taiyo Yuden Co., Ltd. | Acoustic wave device, filter, and multiplexer |
WO2019187577A1 (ja) * | 2018-03-29 | 2019-10-03 | 日本碍子株式会社 | 圧電性材料基板と支持基板との接合体 |
JP6835038B2 (ja) * | 2018-06-18 | 2021-02-24 | 株式会社村田製作所 | 弾性波装置及び高周波フロントエンド回路 |
JP7231368B2 (ja) * | 2018-09-26 | 2023-03-01 | 太陽誘電株式会社 | 弾性波デバイス |
DE102018131946A1 (de) * | 2018-12-12 | 2020-06-18 | RF360 Europe GmbH | Dünnfilm-SAW-Vorrichtung |
JP7292100B2 (ja) * | 2019-05-16 | 2023-06-16 | NDK SAW devices株式会社 | 弾性表面波素子、フィルタ回路及び電子部品 |
US11183987B2 (en) * | 2019-09-26 | 2021-11-23 | Avago Technologies International Sales Pte. Limited | Acoustic resonator device |
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EP1515436A3 (en) | 2003-08-29 | 2005-08-31 | Seiko Epson Corporation | Surface acoustic wave element and electronic equipment provided with the element |
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JP5110092B2 (ja) | 2007-12-25 | 2012-12-26 | 株式会社村田製作所 | 複合圧電基板の製造方法 |
CN102017407B (zh) * | 2008-04-30 | 2014-03-19 | 株式会社村田制作所 | 弹性边界波装置 |
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2016
- 2016-03-18 JP JP2016055379A patent/JP6360847B2/ja active Active
-
2017
- 2017-03-02 US US15/447,691 patent/US10187035B2/en active Active
- 2017-03-10 KR KR1020170030419A patent/KR101913933B1/ko active IP Right Grant
- 2017-03-10 CN CN201710141175.8A patent/CN107204750B/zh active Active
Also Published As
Publication number | Publication date |
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US20170272049A1 (en) | 2017-09-21 |
KR101913933B1 (ko) | 2018-10-31 |
US10187035B2 (en) | 2019-01-22 |
JP2017169172A (ja) | 2017-09-21 |
KR20170108842A (ko) | 2017-09-27 |
CN107204750A (zh) | 2017-09-26 |
CN107204750B (zh) | 2020-12-18 |
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