CN111082776A - 电极具有空隙层的体声波谐振器、滤波器及电子设备 - Google Patents
电极具有空隙层的体声波谐振器、滤波器及电子设备 Download PDFInfo
- Publication number
- CN111082776A CN111082776A CN201911266563.4A CN201911266563A CN111082776A CN 111082776 A CN111082776 A CN 111082776A CN 201911266563 A CN201911266563 A CN 201911266563A CN 111082776 A CN111082776 A CN 111082776A
- Authority
- CN
- China
- Prior art keywords
- electrode
- layer
- resonator
- gap
- electrode layer
- 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
- 239000011800 void material Substances 0.000 title claims description 21
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 description 114
- 239000000463 material Substances 0.000 description 12
- 230000035882 stress Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000010408 film Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000005360 phosphosilicate glass Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 239000012928 buffer substance Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 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
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- UKDIAJWKFXFVFG-UHFFFAOYSA-N potassium;oxido(dioxo)niobium Chemical compound [K+].[O-][Nb](=O)=O UKDIAJWKFXFVFG-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 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
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000010409 thin film Substances 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 devices; 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 devices; 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
- H03H9/131—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials 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 devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
-
- 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
- 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 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
- H03H9/174—Membranes
-
- 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H2009/155—Constructional features of resonators consisting of piezoelectric or electrostrictive material using MEMS techniques
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
Claims (17)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911266563.4A CN111082776B (zh) | 2019-12-11 | 2019-12-11 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
EP20898856.8A EP4113838A4 (en) | 2019-12-11 | 2020-05-06 | ACOUSTIC BULK WAVE RESONATOR WITH ELECTRODE HAVING A CAVITY LAYER, FILTER AND ELECTRONIC DEVICE |
PCT/CN2020/088700 WO2021114555A1 (zh) | 2019-12-11 | 2020-05-06 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911266563.4A CN111082776B (zh) | 2019-12-11 | 2019-12-11 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111082776A true CN111082776A (zh) | 2020-04-28 |
CN111082776B CN111082776B (zh) | 2021-06-01 |
Family
ID=70313797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911266563.4A Active CN111082776B (zh) | 2019-12-11 | 2019-12-11 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4113838A4 (zh) |
CN (1) | CN111082776B (zh) |
WO (1) | WO2021114555A1 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021077711A1 (zh) * | 2019-10-23 | 2021-04-29 | 诺思(天津)微系统有限责任公司 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
WO2021114555A1 (zh) * | 2019-12-11 | 2021-06-17 | 诺思(天津)微系统有限责任公司 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
WO2022057767A1 (zh) * | 2020-09-21 | 2022-03-24 | 中芯集成电路(宁波)有限公司上海分公司 | 一种薄膜体声波谐振器的制造方法 |
WO2022228486A1 (zh) * | 2021-04-30 | 2022-11-03 | 诺思(天津)微系统有限责任公司 | 体声波谐振器及制造方法、滤波器及电子设备 |
WO2022247902A1 (zh) * | 2021-05-26 | 2022-12-01 | 诺思(天津)微系统有限责任公司 | 包括碳化硅基底的体声波谐振器、滤波器及电子设备 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1956324A (zh) * | 2005-10-27 | 2007-05-02 | 富士通媒体部品株式会社 | 压电薄膜谐振器及滤波器 |
US20110266925A1 (en) * | 2010-04-29 | 2011-11-03 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Resonator device including electrode with buried temperature compensating layer |
CN103532516A (zh) * | 2013-08-05 | 2014-01-22 | 天津大学 | 体波谐振器及其制造方法 |
US20140292149A1 (en) * | 2013-03-28 | 2014-10-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Temperature compensated acoustic resonator device |
US20150349747A1 (en) * | 2014-05-29 | 2015-12-03 | Avago Technologies General Ip ( Singapore) Pte. Ltd. | Capacitive coupled resonator device with air-gap separating electrode and piezoelectric layer |
US20170077385A1 (en) * | 2015-09-10 | 2017-03-16 | Triquint Semiconductor, Inc. | Air gap in baw top metal stack for reduced resistive and acoustic loss |
US20180183405A1 (en) * | 2016-12-23 | 2018-06-28 | Avago Technologies General Ip (Singapore) Pte. Ltd | Bulk baw resonator having electrically insulating substrate |
CN111193489A (zh) * | 2018-11-14 | 2020-05-22 | 天津大学 | 体声波谐振器、滤波器和电子设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6483229B2 (en) * | 2001-03-05 | 2002-11-19 | Agilent Technologies, Inc. | Method of providing differential frequency adjusts in a thin film bulk acoustic resonator (FBAR) filter and apparatus embodying the method |
JP5322597B2 (ja) * | 2008-11-13 | 2013-10-23 | 太陽誘電株式会社 | 共振子、フィルタ、デュープレクサおよび電子装置 |
US8384497B2 (en) * | 2009-12-18 | 2013-02-26 | Hao Zhang | Piezoelectric resonator structure having an interference structure |
US11271543B2 (en) * | 2018-02-13 | 2022-03-08 | Samsung Electro-Mechanics Co., Ltd. | Bulk acoustic wave resonator |
JP7447372B2 (ja) * | 2018-05-17 | 2024-03-12 | サムソン エレクトロ-メカニックス カンパニーリミテッド. | バルク音響共振器及びその製造方法 |
CN109756201A (zh) * | 2019-03-26 | 2019-05-14 | 深圳华远微电科技有限公司 | 薄膜体声波谐振器和滤波器 |
CN111082776B (zh) * | 2019-12-11 | 2021-06-01 | 诺思(天津)微系统有限责任公司 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
-
2019
- 2019-12-11 CN CN201911266563.4A patent/CN111082776B/zh active Active
-
2020
- 2020-05-06 EP EP20898856.8A patent/EP4113838A4/en active Pending
- 2020-05-06 WO PCT/CN2020/088700 patent/WO2021114555A1/zh unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1956324A (zh) * | 2005-10-27 | 2007-05-02 | 富士通媒体部品株式会社 | 压电薄膜谐振器及滤波器 |
US20110266925A1 (en) * | 2010-04-29 | 2011-11-03 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Resonator device including electrode with buried temperature compensating layer |
US20140292149A1 (en) * | 2013-03-28 | 2014-10-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Temperature compensated acoustic resonator device |
CN103532516A (zh) * | 2013-08-05 | 2014-01-22 | 天津大学 | 体波谐振器及其制造方法 |
US20150349747A1 (en) * | 2014-05-29 | 2015-12-03 | Avago Technologies General Ip ( Singapore) Pte. Ltd. | Capacitive coupled resonator device with air-gap separating electrode and piezoelectric layer |
US20170077385A1 (en) * | 2015-09-10 | 2017-03-16 | Triquint Semiconductor, Inc. | Air gap in baw top metal stack for reduced resistive and acoustic loss |
US20180183405A1 (en) * | 2016-12-23 | 2018-06-28 | Avago Technologies General Ip (Singapore) Pte. Ltd | Bulk baw resonator having electrically insulating substrate |
CN111193489A (zh) * | 2018-11-14 | 2020-05-22 | 天津大学 | 体声波谐振器、滤波器和电子设备 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021077711A1 (zh) * | 2019-10-23 | 2021-04-29 | 诺思(天津)微系统有限责任公司 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
WO2021114555A1 (zh) * | 2019-12-11 | 2021-06-17 | 诺思(天津)微系统有限责任公司 | 电极具有空隙层的体声波谐振器、滤波器及电子设备 |
WO2022057767A1 (zh) * | 2020-09-21 | 2022-03-24 | 中芯集成电路(宁波)有限公司上海分公司 | 一种薄膜体声波谐振器的制造方法 |
WO2022228486A1 (zh) * | 2021-04-30 | 2022-11-03 | 诺思(天津)微系统有限责任公司 | 体声波谐振器及制造方法、滤波器及电子设备 |
WO2022247902A1 (zh) * | 2021-05-26 | 2022-12-01 | 诺思(天津)微系统有限责任公司 | 包括碳化硅基底的体声波谐振器、滤波器及电子设备 |
Also Published As
Publication number | Publication date |
---|---|
EP4113838A1 (en) | 2023-01-04 |
EP4113838A4 (en) | 2024-06-05 |
WO2021114555A1 (zh) | 2021-06-17 |
CN111082776B (zh) | 2021-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111162748B (zh) | 电极具有空隙层的体声波谐振器、滤波器及电子设备 | |
CN111245394B (zh) | 电极具有空隙层与温补层的体声波谐振器、滤波器及电子设备 | |
CN111082776B (zh) | 电极具有空隙层的体声波谐振器、滤波器及电子设备 | |
US10727808B2 (en) | Bulk acoustic wave resonator comprising a ring | |
US10404231B2 (en) | Acoustic resonator device with an electrically-isolated layer of high-acoustic-impedance material interposed therein | |
CN111010130B (zh) | 带温补层和电学层的体声波谐振器、滤波器及电子设备 | |
CN111245393B (zh) | 体声波谐振器及其制造方法、滤波器及电子设备 | |
CN103166596B (zh) | 谐振器和滤波器 | |
WO2021077716A1 (zh) | 体声波谐振器、滤波器及电子设备 | |
WO2021042740A1 (zh) | 体声波谐振器及其制造方法、滤波器和电子设备 | |
CN111010121A (zh) | 带不导电插入层的体声波谐振器、滤波器和电子设备 | |
CN113328719B (zh) | 具有温度补偿功能的固体装配型体声波谐振器 | |
CN114553169A (zh) | 利用凸起结构降低声阻抗的体声波谐振器、滤波器及电子设备 | |
CN111010124B (zh) | 电极具有空隙层的体声波谐振器、滤波器及电子设备 | |
JP4917481B2 (ja) | フィルタ | |
JP2009188939A (ja) | 薄膜バルク波共振器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Bulk acoustic wave resonator, filter and electronic equipment with electrode having gap layer Effective date of registration: 20210908 Granted publication date: 20210601 Pledgee: Tianjin TEDA Haihe intelligent manufacturing industry development fund partnership (L.P.) Pledgor: ROFS MICROSYSTEM(TIANJIN) Co.,Ltd. Registration number: Y2021980009022 |
|
PP01 | Preservation of patent right | ||
PP01 | Preservation of patent right |
Effective date of registration: 20240130 Granted publication date: 20210601 |