Invention Grant
- Patent Title: Method of manufacture for single crystal acoustic resonator devices using micro-vias
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Application No.: US15221358Application Date: 2016-07-27
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Publication No.: US10581398B2Publication Date: 2020-03-03
- Inventor: Shawn R. Gibb , Alexander Y. Feldman , Mark D. Boomgarden , Michael P. Lewis , Ramakrishna Vetury , Jeffrey B. Shealy
- Applicant: Akoustis, Inc.
- Applicant Address: US NC Huntersville
- Assignee: Akoustis, Inc.
- Current Assignee: Akoustis, Inc.
- Current Assignee Address: US NC Huntersville
- Agency: Ogawa P.C.
- Agent Richard T. Ogawa
- Main IPC: H03H3/02
- IPC: H03H3/02 ; H03H9/17 ; H03H9/10 ; H01L41/22

Abstract:
A method of manufacture for an acoustic resonator device. The method includes forming a nucleation layer characterized by nucleation growth parameters overlying a substrate and forming a strained piezoelectric layer overlying the nucleation layer. The strained piezoelectric layer is characterized by a strain condition and piezoelectric layer parameters. The process of forming the strained piezoelectric layer can include an epitaxial growth process configured by nucleation growth parameters and piezoelectric layer parameters to modulate the strain condition in the strained piezoelectric layer. By modulating the strain condition, the piezoelectric properties of the resulting piezoelectric layer can be adjusted and improved for specific applications.
Public/Granted literature
- US20170264256A1 METHOD OF MANUFACTURE FOR SINGLE CRYSTAL ACOUSTIC RESONATOR DEVICES USING MICRO-VIAS Public/Granted day:2017-09-14
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