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Piezoelectric resonators and filters based on periodically polarized alscn and low-jitter temperature-compensated aln oscillators Merrilyn Mercy Adzo Fiagbenu
- Format:
- Book
- Thesis/Dissertation
- Author/Creator:
- Fiagbenu, Merrilyn Mercy Adzo, author.
- Language:
- English
- Subjects (All):
- Electrical engineering.
- Nanotechnology.
- Acoustics.
- 0544.
- 0652.
- 0986.
- Local Subjects:
- Electrical engineering.
- Nanotechnology.
- Acoustics.
- 0544.
- 0652.
- 0986.
- Genre:
- Academic theses
- Physical Description:
- 1 online resource (193 pages)
- Contained In:
- Dissertations Abstracts International 87-12B
- Place of Publication:
- Ann Arbor : ProQuest Dissertations and Theses, 2026
- Language Note:
- English
- Summary:
- Aluminum nitride (AlN) bulk acoustic wave (BAW) devices dominate acoustic filtering in the mobile market at 3 GHz and below along with surface acoustic wave (SAW) devices. However, the intrinsic electromechanical coupling coefficient of AlN limits the scaling of these BAW devices to higher frequencies to support the increased data processing demands of 5G and higher Wi-Fi communication bands. One way to address the limited electromechanical coupling coefficient of AlN, albeit at the cost of the material's quality factor, is to alloy it with scandium to form scandium-alloyed AlN or aluminum scandium nitride (AlScN). This research work explores the realization of BAW resonators with higher electromechanical coupling coefficients using periodically polarized AlScN. The design, modeling, and characterization of wide-band BAW filters using periodically polarized AlScN is also discussed. Furthermore, a low jitter AlN BAW oscillator with an improved temperature coefficient of frequency is presented
- Notes:
- Source: Dissertations Abstracts International, Volume: 87-12, Section: B.
- Advisors: Olsson, Roy H., III; Allen, Mark G. Committee members: Aflatouni, Firooz; Jariwala, Deep
- Ph.D. University of Pennsylvania 2026
- Vendor supplied data
- Local Notes:
- School code: 0175
- ISBN:
- 9798247973850
- Access Restriction:
- Restricted for use by site license
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