NDLI: Predicted and measured temperature compensated surface acoustic wave devices for high-temperature applications

Content Provider	IET Digital Library
Author	Ayes, A. Maskay, A. Cunha, M. Pereira da
Abstract	Industrial monitoring and process control, power plants, aerospace industry, military equipment manufacturing, oil and gas industries are examples of businesses in need for high-temperature and harsh-environment electronic components and systems. In particular, resonators and filters that operate beyond the 125°C military range upper limit, normally dictated by silicon-based semiconductor devices, are required in applications which demand frequency control, clocking and sensors. In this Letter, temperature compensated surface acoustic wave orientations appropriate for the fabrication of resonators and filters >125°C have been identified through numerical calculations and experimentally confirmed on a commercially available langasite wafer, a piezoelectric crystal which operates at high temperatures. Resonator filters have been designed, fabricated and tested along two orientations, confirming the zero temperature sensitivities at 150 and 300°C. These devices are of great interest for modern harsh environment frequency control, timing and sensor applications.
Starting Page	699
Ending Page	700
Page Count	2
ISSN	00135194
Volume Number	53
e-ISSN	1350911X
Issue Number	Issue 11, May (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/53/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2017.0950
Journal	Electronics Letters
Publisher Date	2017-04-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Acoustic Wave Device Clocking Electronic Component Frequency Control Harsh Environments High-temperature Application High-temperature Electronics Langasite Wafer Numerical Analysis Numerical Calculations Numerical Method Passive Filter Passive Network Piezoelectric Crystal Resonator Filter Sensing Device And Transducers Sensor Sensor Application Silicon-based Semiconductor Device Surface Acoustic Wave Filter Temperature Compensated Surface Acoustic Wave Device Temperature Compensated Surface Acoustic Wave Orientations Timing Application Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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