KR100622398B1 - 필름 벌크 음향 공진기 및 그 제조 방법 - Google Patents
필름 벌크 음향 공진기 및 그 제조 방법 Download PDFInfo
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- KR100622398B1 KR100622398B1 KR20050064803A KR20050064803A KR100622398B1 KR 100622398 B1 KR100622398 B1 KR 100622398B1 KR 20050064803 A KR20050064803 A KR 20050064803A KR 20050064803 A KR20050064803 A KR 20050064803A KR 100622398 B1 KR100622398 B1 KR 100622398B1
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- piezoelectric film
- lower electrode
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- 230000008569 process Effects 0.000 description 4
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- 229910004298 SiO 2 Inorganic materials 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
-
- 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
- H03H3/02—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 piezoelectric or electrostrictive resonators or networks
-
- 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
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
-
- 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
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02118—Means for compensation or elimination of undesirable effects of lateral leakage between adjacent resonators
Abstract
Description
Claims (7)
- 기판;상기 기판의 상면에 형성된 하부 전극;상기 하부 전극의 상면에 형성되며 음향파가 상기 하부 전극으로 진행할 때 전반사가 일어나는 기울기로 형성된 결정축을 갖는 압전막; 및상기 압전막의 상면에 형성된 상부 전극;을 포함하는 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기.
- 제 1항에 있어서, 상기 압전막은 밀한 매질로 형성되고, 상기 하부 전극은 소한 매질로 형성된 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기.
- 제 1항에 있어서, 상기 압전막의 둘레에는 차단막이 추가로 포함된 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기.
- 기판의 상면에 하부 전극을 형성하는 단계;상기 하부 전극의 상면에 압전막을 형성하되 발생한 음향파가 상기 하부 전극으로 진행할 때 전반사가 일어나는 결정축을 갖는 압전막을 형성하는 단계; 및상기 압전막의 상면에 상부 전극을 형성하는 단계:를 포함하는 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기 제조 방법.
- 제 4항에 있어서, 상기 압전막의 둘레를 에워싸는 차단막(enveloping wall)을 형성시키는 단계가 추가로 포함되는 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기 제조 방법.
- 제 5항에 있어서, 상기 차단막은 상기 상부 전극을 형성하기 위한 층과 동일층으로 증착되어 패터닝 되는 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기 제조 방법.
- 제 4항에 있어서, 상기 압전막은 스퍼터링법 또는 증발법에 의해 증착되는 것을 특징으로 하는 필름 벌크형 어쿠스틱 공진기 제조 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20050064803A KR100622398B1 (ko) | 2005-07-18 | 2005-07-18 | 필름 벌크 음향 공진기 및 그 제조 방법 |
US11/395,298 US7423501B2 (en) | 2005-07-18 | 2006-04-03 | Film bulk acoustic wave resonator and manufacturing method thererof |
EP20060253526 EP1746722A3 (en) | 2005-07-18 | 2006-07-05 | Film bulk acoustic wave resonator and manufacturing method thereof |
JP2006189256A JP4490951B2 (ja) | 2005-07-18 | 2006-07-10 | フィルムバルク音響共振器及びその製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20050064803A KR100622398B1 (ko) | 2005-07-18 | 2005-07-18 | 필름 벌크 음향 공진기 및 그 제조 방법 |
Publications (1)
Publication Number | Publication Date |
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KR100622398B1 true KR100622398B1 (ko) | 2006-09-12 |
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Application Number | Title | Priority Date | Filing Date |
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KR20050064803A KR100622398B1 (ko) | 2005-07-18 | 2005-07-18 | 필름 벌크 음향 공진기 및 그 제조 방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7423501B2 (ko) |
EP (1) | EP1746722A3 (ko) |
JP (1) | JP4490951B2 (ko) |
KR (1) | KR100622398B1 (ko) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005034345A1 (en) * | 2003-10-06 | 2005-04-14 | Philips Intellectual Property & Standards Gmbh | Resonator structure and method of producing it |
JP4963193B2 (ja) * | 2006-03-07 | 2012-06-27 | 日本碍子株式会社 | 圧電薄膜デバイス |
JP5051751B2 (ja) * | 2007-03-20 | 2012-10-17 | 日本電波工業株式会社 | 圧電薄膜振動子の製造方法及び圧電薄膜振動子 |
US20090081912A1 (en) * | 2007-09-24 | 2009-03-26 | Ricky Ray Burrow | Fragrance emitting patch |
KR101413067B1 (ko) * | 2008-01-23 | 2014-07-01 | 재단법인서울대학교산학협력재단 | 어레이 타입의 가변 캐패시터 장치 |
US20110304243A1 (en) * | 2009-03-06 | 2011-12-15 | Hitachi, Ltd. | Thin-Film Piezoelectric Acoustic Wave Resonator and High-Frequency Filter |
JP5918522B2 (ja) * | 2011-12-12 | 2016-05-18 | 太陽誘電株式会社 | フィルタおよびデュプレクサ |
KR101973423B1 (ko) | 2014-12-08 | 2019-04-29 | 삼성전기주식회사 | 음향 공진기 및 그 제조 방법 |
US10361677B2 (en) * | 2016-02-18 | 2019-07-23 | X-Celeprint Limited | Transverse bulk acoustic wave filter |
US10200013B2 (en) | 2016-02-18 | 2019-02-05 | X-Celeprint Limited | Micro-transfer-printed acoustic wave filter device |
US10291203B2 (en) * | 2016-07-12 | 2019-05-14 | Murata Manufacturing Co., Ltd. | Piezoelectric MEMS resonator with a high quality factor |
US10804880B2 (en) | 2018-12-03 | 2020-10-13 | X-Celeprint Limited | Device structures with acoustic wave transducers and connection posts |
US11057017B2 (en) * | 2017-08-17 | 2021-07-06 | Samsung Electro-Mechanics Co., Ltd | Bulk-acoustic wave resonator |
US11528808B2 (en) | 2018-12-03 | 2022-12-13 | X Display Company Technology Limited | Printing components to substrate posts |
US11482979B2 (en) | 2018-12-03 | 2022-10-25 | X Display Company Technology Limited | Printing components over substrate post edges |
US11274035B2 (en) | 2019-04-24 | 2022-03-15 | X-Celeprint Limited | Overhanging device structures and related methods of manufacture |
US10790173B2 (en) | 2018-12-03 | 2020-09-29 | X Display Company Technology Limited | Printed components on substrate posts |
US20210002128A1 (en) | 2018-12-03 | 2021-01-07 | X-Celeprint Limited | Enclosed cavity structures |
Family Cites Families (12)
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US3401275A (en) * | 1966-04-14 | 1968-09-10 | Clevite Corp | Composite resonator |
GB1207974A (en) * | 1966-11-17 | 1970-10-07 | Clevite Corp | Frequency selective apparatus including a piezoelectric device |
US3582839A (en) * | 1968-06-06 | 1971-06-01 | Clevite Corp | Composite coupled-mode filter |
JPS60116217A (ja) * | 1983-11-28 | 1985-06-22 | Nippon Telegr & Teleph Corp <Ntt> | 複合共振子 |
US4691714A (en) * | 1984-10-15 | 1987-09-08 | Adamtek Corporation | Rheological testing apparatus and method |
US4636678A (en) * | 1985-03-01 | 1987-01-13 | The United States Of America As Represented By The Secretary Of The Army | Compensation of acoustic wave devices |
US4719383A (en) * | 1985-05-20 | 1988-01-12 | The United States Of America As Represented By The United States Department Of Energy | Piezoelectric shear wave resonator and method of making same |
US6150703A (en) * | 1998-06-29 | 2000-11-21 | Trw Inc. | Lateral mode suppression in semiconductor bulk acoustic resonator (SBAR) devices using tapered electrodes, and electrodes edge damping materials |
FI107660B (fi) * | 1999-07-19 | 2001-09-14 | Nokia Mobile Phones Ltd | Resonaattorirakenne |
US20040007940A1 (en) * | 2002-07-15 | 2004-01-15 | Asia Pacific Microsystems, Inc. | Thin film acoustic wave device and the manufacturing method thereof |
ATE515108T1 (de) * | 2003-09-12 | 2011-07-15 | Panasonic Corp | Abstimmbarer dünnschicht-volumenwellen-resonator, herstellungsmethode dafür, filter, mehrschichtiges zusammengesetztes elektronisches bauelement und kommunikationsvorrichtung |
JP2005277454A (ja) * | 2004-03-22 | 2005-10-06 | Tdk Corp | 圧電共振器およびそれを備えた電子部品 |
-
2005
- 2005-07-18 KR KR20050064803A patent/KR100622398B1/ko active IP Right Grant
-
2006
- 2006-04-03 US US11/395,298 patent/US7423501B2/en active Active
- 2006-07-05 EP EP20060253526 patent/EP1746722A3/en not_active Ceased
- 2006-07-10 JP JP2006189256A patent/JP4490951B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2007028612A (ja) | 2007-02-01 |
JP4490951B2 (ja) | 2010-06-30 |
EP1746722A2 (en) | 2007-01-24 |
US7423501B2 (en) | 2008-09-09 |
US20070013463A1 (en) | 2007-01-18 |
EP1746722A3 (en) | 2009-12-23 |
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