KR101661361B1 - 복합 기판, 및 그것을 이용한 탄성 표면파 필터와 탄성 표면파 공진기 - Google Patents
복합 기판, 및 그것을 이용한 탄성 표면파 필터와 탄성 표면파 공진기 Download PDFInfo
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- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 claims abstract description 20
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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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
-
- 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
-
- 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
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
-
- 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
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
복합 기판(10)은 탄성파를 전파시킬 수 있는 탄탈산리튬(LT)으로 이루어지는 압전 기판(12)과, 방위 (111)면에서 압전 기판(12)에 접합된 실리콘으로 이루어지는 지지 기판(14)과, 양 기판(12, 14)을 접합하는 접착층(16)을 구비한다.
Description
도 2는 실시예 1의 복합 기판(10)의 제조 공정을 모식적으로 도시하는 설명도이다.
도 3은 실시예 1의 복합 기판(10)을 이용하여 제작한 탄성 표면파 디바이스(30)의 사시도이다.
도 4는 탄성 표면파 디바이스(30)를 세라믹 기판(40)에 탑재하여 수지로 봉입하고, 프린트 배선 기판(60)에 실장한 양태를 도시하는 단면도이다.
도 5는 램파 소자(70)의 단면도이다.
도 6은 램파 소자의 복합 기판(80)의 단면도이다.
도 7은 박막 공진기(90)의 단면도이다.
도 8은 박막 공진기(100)의 단면도이다.
도 9는 박막 공진기(100)의 복합 기판(110)의 단면도이다.
14: 지지 기판 16: 접착층
20: 접합 기판(연마 전 복합 기판) 22: 압전 기판(연마 전)
26: 에폭시 수지 접착제 30: 탄성 표면파 디바이스
32, 34: IDT 전극 36: 반사 전극
40: 세라믹 기판 42, 44: 패드
46, 48: 금볼 50: 수지
52, 54: 전극 60: 프린트 배선 기판
62, 64: 패드 66, 68: 땜납
70: 램파 소자 72: IDT 전극
74: 캐비티 76: 금속막
90, 100: 박막 공진기 102: 전극
104: 캐비티 106: 절연막
Claims (10)
- 탄성파를 전파시킬 수 있는 압전 기판과,
방위 (111)면에서 상기 압전 기판의 이면에 유기 접착층을 통해 접합되고, 그 압전 기판보다 열팽창 계수가 작은 실리콘제의 지지 기판을 구비하고,
상기 지지 기판에 열이 가해졌을 때의 열응력이 XYZ축 방향으로 3등분되어, 하나의 분력이 작아지는 것인 복합 기판. - 제1항에 있어서, 상기 압전 기판은 이면에 금속막을 갖는 것인 복합 기판.
- 제1항에 있어서, 상기 압전 기판은 이면에 금속막과 절연막을 갖는 것인 복합 기판.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 압전 기판과 상기 지지 기판과의 열팽창 계수차는 10 ppm/K 이상인 것인 복합 기판.
- 제4항에 있어서, 상기 압전 기판은, 탄탈산리튬, 니오브산리튬, 니오브산리튬-탄탈산리튬 고용체 단결정, 수정 또는 붕산리튬으로 이루어지는 것인 복합 기판.
- 제5항에 기재한 복합 기판을 이용하여 형성되는 탄성 표면파 필터.
- 제5항에 기재한 복합 기판을 이용하여 형성되는 탄성 표면파 공진기.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 지지 기판의 두께는 100∼500 ㎛인 것인 복합 기판.
- 제6항에 있어서, 상기 지지 기판의 두께는 100∼500 ㎛인 것인 탄성 표면파 필터.
- 제7항에 있어서, 상기 지지 기판의 두께는 100∼500 ㎛인 것인 탄성 표면파 공진기.
Applications Claiming Priority (2)
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JP2010005401A JP2010187373A (ja) | 2009-01-19 | 2010-01-14 | 複合基板及びそれを用いた弾性波デバイス |
JPJP-P-2010-005401 | 2010-01-14 |
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KR20110083451A KR20110083451A (ko) | 2011-07-20 |
KR101661361B1 true KR101661361B1 (ko) | 2016-09-29 |
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CN (1) | CN102130663A (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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DE112013003488B4 (de) * | 2012-07-12 | 2021-08-19 | Ngk Insulators, Ltd. | Verbundsubstrat, piezoelektrische vorrichtung und verfahren zur herstellung eines verbundsubstrats |
WO2014034326A1 (ja) * | 2012-08-29 | 2014-03-06 | 株式会社村田製作所 | 弾性波装置 |
WO2014156507A1 (ja) * | 2013-03-27 | 2014-10-02 | 日本碍子株式会社 | 複合基板及び弾性波デバイス |
DE112017004718T5 (de) * | 2016-09-20 | 2019-06-13 | Ngk Insulators, Ltd. | Verbundsubstrat, Verfahren zu seiner Herstellung und elektronische Vorrichtung |
KR102666083B1 (ko) | 2016-10-31 | 2024-05-13 | 엘지디스플레이 주식회사 | 접촉 감응 소자 및 이를 포함하는 표시 장치 |
JP6658957B2 (ja) * | 2017-03-09 | 2020-03-04 | 株式会社村田製作所 | 弾性波装置、高周波フロントエンド回路及び通信装置 |
JP7224094B2 (ja) * | 2017-06-26 | 2023-02-17 | 太陽誘電株式会社 | 弾性波共振器、フィルタおよびマルチプレクサ |
WO2019167918A1 (ja) * | 2018-03-02 | 2019-09-06 | 京セラ株式会社 | 複合基板、および圧電素子 |
DE102018107489B4 (de) * | 2018-03-28 | 2019-12-05 | RF360 Europe GmbH | BAW-Resonator mit verbesserter Kopplung, HF-Filter, das einen BAW-Resonator umfasst, und Verfahren zum Herstellen eines BAW-Resonators |
CN108917668B (zh) * | 2018-06-12 | 2024-07-05 | 重庆大学 | 一种差分式双谐振器声波拉伸应变传感器芯片 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004214400A (ja) * | 2002-12-27 | 2004-07-29 | Sumitomo Mitsubishi Silicon Corp | 半導体基板の製造方法 |
JP2005354650A (ja) * | 2004-02-05 | 2005-12-22 | Seiko Epson Corp | 弾性表面波デバイス |
JP2008301066A (ja) * | 2007-05-30 | 2008-12-11 | Yamajiyu Ceramics:Kk | タンタル酸リチウム(lt)又はニオブ酸リチウム(ln)単結晶複合基板 |
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JP4686342B2 (ja) * | 2005-11-30 | 2011-05-25 | 株式会社日立メディアエレクトロニクス | 弾性表面波装置及びこれを搭載した通信端末。 |
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- 2010-04-09 KR KR1020100032709A patent/KR101661361B1/ko active IP Right Grant
- 2010-04-28 CN CN2010101710349A patent/CN102130663A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004214400A (ja) * | 2002-12-27 | 2004-07-29 | Sumitomo Mitsubishi Silicon Corp | 半導体基板の製造方法 |
JP2005354650A (ja) * | 2004-02-05 | 2005-12-22 | Seiko Epson Corp | 弾性表面波デバイス |
JP2008301066A (ja) * | 2007-05-30 | 2008-12-11 | Yamajiyu Ceramics:Kk | タンタル酸リチウム(lt)又はニオブ酸リチウム(ln)単結晶複合基板 |
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