Theoretical analysis of SAW propagation characteristics under the strained medium and applications for high temperature stable high coupling SAW substrates

被引:0
|
作者
Yamanouchi, K [1 ]
Kotani, K [1 ]
Odagawa, H [1 ]
Cho, Y [1 ]
机构
[1] Tohoku Inst Technol, Sendai, Miyagi 982, Japan
来源
1999 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2 | 1999年
关键词
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The important properties required for SAW substrates are a large electro-mechanical coupling coefficient (k(2)), small temperature coefficient of frequency (TCF), low propagation loss, etc. At present, there is no single crystal which satisfies all the above mentioned requirements. Recently the efforts to develop new SAW substrate with large k(2) and small TCF have investigated. New KNbO8 single crystal substrates with extremely large electromechanical coupling coefficient (k(2) 53%) and zero TCF around room temperature are developed. LiNbO8 has good properties as the SAW substrates with a large size. Unfortunately LiNbO8 possesses the defect of large values of TCP. In this paper, SAW bonded composite substrates with a large ka, small TCF, low propagation loss and no dispersion using conventional bonders are investigated theoretically and experimentally. The propagation characteristics of SAW in the strained piezoelectric crystal using the higher-order elasticity theory have been analyzed. The theoretical results show zero TCF on LiNbO8/SiO2 substrates, At room temperature a relatively thin LiNbO8 is firmly bonded to a glass material with a small thermal expansion coefficient by using ultra-violet rays stiffen bonder. The experimental results of LiNbO8/glass substrate showed TCF of-19ppm/degrees C. The propagation propertis were almost the same as those of the single crystal.
引用
收藏
页码:239 / 242
页数:4
相关论文
共 50 条
  • [21] AlN/IDT/AlN/Sapphire SAW Heterostructure for High-Temperature Applications
    Legrani, Ouarda
    Aubert, Thierry
    Elmazria, Omar
    Bartasyte, Ausrine
    Nicolay, Pascal
    Talbi, Abdelkrim
    Boulet, Pascal
    Ghanbaja, Jaafar
    Mangin, Denis
    IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2016, 63 (06) : 898 - 906
  • [22] Wire Bonding of Surface Acoustic Wave (SAW) Sensors for High Temperature Applications
    Ernst, Daniel
    Brachmann, Erik
    Menzel, Siegfried
    Bock, Karlheinz
    2018 7TH ELECTRONIC SYSTEM-INTEGRATION TECHNOLOGY CONFERENCE (ESTC), 2018,
  • [23] CO2 sensing characteristics of SAW sensor operating at high temperature
    Ghosh, Abhishek
    Zhang, Chen
    Zhang, Haifeng
    SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2019, 2019, 10970
  • [24] Effects of AlN Coating Layer on High Temperature Characteristics of Langasite SAW Sensors
    Shu, Lin
    Peng, Bin
    Cui, Yilin
    Gong, Dongdong
    Yang, Zhengbing
    Liu, Xingzhao
    Zhang, Wanli
    SENSORS, 2016, 16 (09)
  • [25] Test and Analysis of SAW High Temperature Strain Sensor Based on Langasite
    Yan, Xiawen
    Tan, Qiulin
    Li, Xiangrong
    Xue, Tao
    Li, Meipu
    IEEE SENSORS JOURNAL, 2022, 22 (13) : 12622 - 12628
  • [26] Temperature compensated LiTaO3/sapphire SAW substrate for high power applications
    Miura, M
    Matsuda, T
    Ueda, M
    Satoh, Y
    Ikata, O
    Ebata, Y
    Takagi, H
    2005 IEEE ULTRASONICS SYMPOSIUM, VOLS 1-4, 2005, : 573 - 576
  • [27] Investigations on AlN/Sapphire Piezoelectric Bilayer Structure for High-Temperature SAW Applications
    Aubert, Thierry
    Elmazria, Omar
    Assouar, Badreddine
    Blampain, Eloi
    Hamdan, Ahmad
    Geneve, Damien
    Weber, Sylvain
    IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2012, 59 (05) : 999 - 1005
  • [28] Theoretical analysis of screened heat pipes for medium and high temperature solar applications
    Di Marco, P.
    Filippeschi, S.
    Franco, A.
    Jafari, D.
    32ND UIT (ITALIAN UNION OF THERMO-FLUID-DYNAMICS) HEAT TRANSFER CONFERENCE, 2014, 547
  • [29] 5-10 GHz SAW resonators and low loss wide band resonator filters using Zero TCF high electromechanical coupling SAW substrates
    Yamanouchi, K
    Satoh, Y
    Isono, H
    Kawasaki, D
    2005 IEEE ULTRASONICS SYMPOSIUM, VOLS 1-4, 2005, : 2170 - 2173
  • [30] Acousto-optical and SAW propagation characteristics of temperature stable multilayered structures based on LiNbO3 and diamond
    Shandilya, Swati
    Sreenivas, K.
    Gupta, Vinay
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (02)