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Title: Method for fabricating a microelectromechanical resonator

Abstract

A method is disclosed which calculates dimensions for a MEM resonator in terms of integer multiples of a grid width G for reticles used to fabricate the resonator, including an actual sub-width L.sub.a=NG and an effective electrode width W.sub.e=MG where N and M are integers which minimize a frequency error f.sub.e=f.sub.d-f.sub.a between a desired resonant frequency f.sub.d and an actual resonant frequency f.sub.a. The method can also be used to calculate an overall width W.sub.o for the MEM resonator, and an effective electrode length L.sub.e which provides a desired motional impedance for the MEM resonator. The MEM resonator can then be fabricated using these values for L.sub.a, W.sub.e, W.sub.o and L.sub.e. The method can also be applied to a number j of MEM resonators formed on a common substrate.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1083225
Patent Number(s):
8367305
Application Number:
12/884,237
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03H - IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Wojciechowski, Kenneth E, and Olsson, III, Roy H. Method for fabricating a microelectromechanical resonator. United States: N. p., 2013. Web.
Wojciechowski, Kenneth E, & Olsson, III, Roy H. Method for fabricating a microelectromechanical resonator. United States.
Wojciechowski, Kenneth E, and Olsson, III, Roy H. Tue . "Method for fabricating a microelectromechanical resonator". United States. https://www.osti.gov/servlets/purl/1083225.
@article{osti_1083225,
title = {Method for fabricating a microelectromechanical resonator},
author = {Wojciechowski, Kenneth E and Olsson, III, Roy H},
abstractNote = {A method is disclosed which calculates dimensions for a MEM resonator in terms of integer multiples of a grid width G for reticles used to fabricate the resonator, including an actual sub-width L.sub.a=NG and an effective electrode width W.sub.e=MG where N and M are integers which minimize a frequency error f.sub.e=f.sub.d-f.sub.a between a desired resonant frequency f.sub.d and an actual resonant frequency f.sub.a. The method can also be used to calculate an overall width W.sub.o for the MEM resonator, and an effective electrode length L.sub.e which provides a desired motional impedance for the MEM resonator. The MEM resonator can then be fabricated using these values for L.sub.a, W.sub.e, W.sub.o and L.sub.e. The method can also be applied to a number j of MEM resonators formed on a common substrate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}

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Works referenced in this record:

Single-Chip Multiple-Frequency ALN MEMS Filters Based on Contour-Mode Piezoelectric Resonators
journal, April 2007


One and two port piezoelectric higher order contour-mode MEMS resonators for mechanical signal processing
journal, November 2007


Parallel-resonator HF micromechanical bandpass filters
conference, January 1997


Post-CMOS Compatible Aluminum Nitride MEMS Filters and Resonant Sensors
conference, May 2007

  • Olsson, Roy H.; Fleming, James G.; Wojciechowski, Kenneth E.
  • 2007 IEEE International Frequency Control Symposium Joint with the 21st European Frequency and Time Forum
  • https://doi.org/10.1109/FREQ.2007.4319108