KR20170141386A - 탄성파 필터 장치 - Google Patents
탄성파 필터 장치 Download PDFInfo
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- KR20170141386A KR20170141386A KR1020160074351A KR20160074351A KR20170141386A KR 20170141386 A KR20170141386 A KR 20170141386A KR 1020160074351 A KR1020160074351 A KR 1020160074351A KR 20160074351 A KR20160074351 A KR 20160074351A KR 20170141386 A KR20170141386 A KR 20170141386A
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- 239000000758 substrate Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 7
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- 238000009966 trimming Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
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- 238000001312 dry etching Methods 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
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- 238000000059 patterning Methods 0.000 description 5
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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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 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
- H03H9/02—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
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
-
- 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
- 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
-
- 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
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02149—Means for compensation or elimination of undesirable effects of ageing changes of characteristics, e.g. electro-acousto-migration
-
- 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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
- H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
-
- 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
- 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
- H03H9/173—Air-gaps
-
- 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
- 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
- H03H9/174—Membranes
-
- 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
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
도 2는 도 1의 A부를 나타내는 확대도이다.
도 3은 본 발명의 제2 실시예에 따른 탄성파 필터 장치를 나타내는 개략 단면도이다.
도 4는 도 3의 B부를 나타내는 확대도이다.
도 5는 본 발명의 제3 실시예에 따른 탄성파 필터 장치를 나타내는 개략 단면도이다.
도 6은 도 3의 C부를 나타내는 확대도이다.
도 7은 본 발명의 제4 실시예에 따른 탄성파 필터 장치를 나타내는 개략 단면도이다.
도 8은 도 7의 D부를 나타내는 확대도이다.
도 9는 본 발명의 제5 실시예에 따른 탄성파 필터 장치를 나타내는 개략 단면도이다.
110, 210, 310, 410, 510 : 기판
120, 220, 320, 420, 520 : 하부전극 보호층
130, 230, 330, 430, 530 : 하부전극
140, 240, 340, 440, 540 : 압전체층
150, 250, 350, 450, 550 : 상부전극
160, 260, 360, 460, 560 : 절연층
Claims (16)
- 기판;
기판 상에 형성되는 하부전극;
상기 하부전극 상에 형성되는 압전체층;
상기 압전체층 상에 형성되는 상부전극; 및
상기 상부전극 상에 형성되는 절연층;
을 포함하며,
상기 절연층은 상기 상부전극의 일부분을 노출시키는 탄성파 필터 장치.
- 제1항에 있어서,
상기 상부전극에는 다른 부분보다 두께가 두꺼운 프레임부가 형성되는 탄성파 필터 장치.
- 제2항에 있어서,
상기 절연층은 상기 프레임부의 측면과 상면 일부를 노출시키는 탄성파 필터 장치.
- 제2항에 있어서,
상기 절연층은 상기 프레임부의 측면 일부를 노출시키는 탄성파 필터 장치.
- 제2항에 있어서,
상기 절연층은 상기 프레임부로부터 돌출되도록 연장 형성되는 탄성파 필터 장치.
- 제1항에 있어서,
상기 하부전극의 하부에 형성되는 하부전극 보호층을 더 포함하는 탄성파 필터 장치.
- 제6항에 있어서,
상기 하부전극 보호층은 상기 기판과 함께 에어갭을 형성하며,
상기 압전체층은 상기 하부전극 보호층의 일부분 상부에도 적층되는 탄성파 필터 장치.
- 제7항에 있어서,
상기 에어갭은 희생층의 제거에 의해 형성되는 탄성파 필터 장치.
- 제7항에 있어서,
상기 하부전극 보호층과 상기 하부전극은 경사부를 가지는 탄성파 필터 장치.
- 제2항에 있어서,
상기 프레임부는 상기 상부전극의 다른 부분과 동일한 재질로 이루어지는 탄성파 필터 장치.
- 제2항에 있어서,
상기 프레임부는 띠 형상을 가지는 탄성파 필터 장치.
- 기판;
상기 기판과 함께 에어갭을 형성하도록 상기 기판 상에 형성되는 하부전극 보호층;
상기 하부전극 보호층 상에 형성되는 하부전극;
상기 하부전극 상에 형성되는 압전체층;
상기 압전체층 상에 형성되는 상부전극; 및
상기 상부전극과, 상기 하부전극 및 상기 압전체층 중 적어도 상기 상부전극과 상기 하부전극을 덮도록 형성되는 절연층;
을 포함하며,
상기 절연층은 상기 상부전극의 일부분을 노출시키는 탄성파 필터 장치.
- 제12항에 있어서,
상기 상부전극의 가장자리에는 다른 부분보다 두께가 두꺼운 프레임부가 형성되는 탄성파 필터 장치.
- 제13항에 있어서,
상기 절연층은 상기 프레임부의 측면과 상면 일부가 외부로 노출되도록 하는 노출홀을 가지는 탄성파 필터 장치.
- 제13항에 있어서,
상기 프레임부는 상기 상부전극의 다른 부분과 동일한 재질로 이루어지는 탄성파 필터 장치.
- 제13항에 있어서,
상기 프레임부는 띠 형상을 가지는 탄성파 필터 장치.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160074351A KR20170141386A (ko) | 2016-06-15 | 2016-06-15 | 탄성파 필터 장치 |
| US15/384,385 US10396751B2 (en) | 2016-06-15 | 2016-12-20 | Acoustic wave filter device |
| CN201710032359.0A CN107528565B (zh) | 2016-06-15 | 2017-01-16 | 声波滤波器装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160074351A KR20170141386A (ko) | 2016-06-15 | 2016-06-15 | 탄성파 필터 장치 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170141386A true KR20170141386A (ko) | 2017-12-26 |
Family
ID=60659835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160074351A Ceased KR20170141386A (ko) | 2016-06-15 | 2016-06-15 | 탄성파 필터 장치 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10396751B2 (ko) |
| KR (1) | KR20170141386A (ko) |
| CN (1) | CN107528565B (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10833646B2 (en) | 2016-10-12 | 2020-11-10 | Samsung Electro-Mechanics Co., Ltd. | Bulk-acoustic wave resonator and method for manufacturing the same |
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| CN111010140B (zh) * | 2019-05-31 | 2025-05-23 | 天津大学 | 突起结构内侧设置空隙结构的谐振器及电子设备 |
| CN110190826B (zh) * | 2019-05-31 | 2020-10-02 | 厦门市三安集成电路有限公司 | 谐振薄膜层、谐振器和滤波器 |
| KR102483626B1 (ko) * | 2020-09-16 | 2023-01-02 | 삼성전기주식회사 | 체적 음향 공진기 |
| KR20230100126A (ko) * | 2021-12-28 | 2023-07-05 | 삼성전기주식회사 | 체적 음향 공진기 |
| CN115242202A (zh) * | 2022-06-17 | 2022-10-25 | 杭州左蓝微电子技术有限公司 | 薄膜体声波谐振器的制备工艺和薄膜体声波谐振器 |
| CN115242215B (zh) * | 2022-09-19 | 2023-02-21 | 常州承芯半导体有限公司 | 体声波谐振装置及其形成方法 |
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| US9520855B2 (en) * | 2014-02-26 | 2016-12-13 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bulk acoustic wave resonators having doped piezoelectric material and frame elements |
| KR101973416B1 (ko) | 2014-07-31 | 2019-04-29 | 삼성전기주식회사 | 음향 공진기 및 음향 공진기의 제조 방법 |
| KR101973423B1 (ko) | 2014-12-08 | 2019-04-29 | 삼성전기주식회사 | 음향 공진기 및 그 제조 방법 |
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2016
- 2016-06-15 KR KR1020160074351A patent/KR20170141386A/ko not_active Ceased
- 2016-12-20 US US15/384,385 patent/US10396751B2/en active Active
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2017
- 2017-01-16 CN CN201710032359.0A patent/CN107528565B/zh active Active
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| US10833646B2 (en) | 2016-10-12 | 2020-11-10 | Samsung Electro-Mechanics Co., Ltd. | Bulk-acoustic wave resonator and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107528565A (zh) | 2017-12-29 |
| CN107528565B (zh) | 2021-03-12 |
| US20170366156A1 (en) | 2017-12-21 |
| US10396751B2 (en) | 2019-08-27 |
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