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Philip T Norusis

from Burlington, NC
Age ~82

Philip Norusis Phones & Addresses

  • 205 Village Ct, Burlington, NC 27215
  • 2438 Caron Ln, Falls Church, VA 22043
  • Hickory, NC
  • Brockport, NY
  • 1724 Abbey Oak Dr, Vienna, VA 22182
  • Alexander, NC
  • Aiken, SC
  • 112 Scenic Ridge Dr, Hickory, NC 28601

Publications

Us Patents

Fundamental, Longitudinal, Thickness Mode Bulk Wave Resonator

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US Patent:
43203655, Mar 16, 1982
Filed:
Nov 3, 1980
Appl. No.:
6/203211
Inventors:
James F. Black - Newington CT
Richard A. Courtney - Vienna VA
Thomas W. Grudkowski - Glastonbury CT
Philip T. Norusis - Falls Church VA
Harry R. Wood - Gaithersburg MD
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
H03H 917
H03H 9205
H03H 950
H03H 956
US Classification:
333187
Abstract:
A substrate (10) is thinned to provide a membrane (12) on which are disposed a counter electrode (20), a film of low conductivity piezoelectric material (22) and a top electrode (24) to form a half wavelength, bulk mode resonator employing a longitudinal acoustic wave. A second top electrode (25) provides a second resonator acoustically coupled to the first, to form a filter. Piezoelectric films include zinc oxide, and aluminum nitride; substrates include silicon and aluminum oxide. A buffer layer (18), such as silicon dioxide may assist in preventing surface aberations and providing proper crystallographic orientation.
Philip T Norusis from Burlington, NC, age ~82 Get Report