Concepts and key technologies of microelectromechanical systems resonators

T Feng, Q Yuan, D Yu, B Wu, H Wang - Micromachines, 2022 - mdpi.com
In this paper, the basic concepts of the equivalent model, vibration modes, and conduction
mechanisms of MEMS resonators are described. By reviewing the existing representative …

Determination of doping and temperature-dependent elastic constants of degenerately doped silicon from MEMS resonators

A Jaakkola, M Prunnila, T Pensala… - IEEE transactions on …, 2014 - ieeexplore.ieee.org
Elastic constants c 11, c 12, and c 44 of degenerately doped silicon are studied
experimentally as a function of the doping level and temperature. First-and second-order …

[HTML][HTML] Temperature frequency stability study of extensional mode N-doped silicon MEMS resonator

H Ahmed, P Rajai, MJ Ahamed - AIP Advances, 2022 - pubs.aip.org
Analytical and numerical modeling techniques are presented to predict n-type-doped silicon
resonators' temperature coefficient frequencies for the extensional mode of vibration by …

Design rules for temperature compensated degenerately n-type-doped silicon MEMS resonators

A Jaakkola, M Prunnila, T Pensala… - Journal of …, 2015 - ieeexplore.ieee.org
The first-and second-order temperature coefficients and the total temperature-induced
frequency deviation of degenerately n-type-doped silicon resonators are modeled. Modeling …

Temperature dependence modeling and thermal sensitivity reduction of bulk micromachined silicon MEMS lame resonators

AR Kolahdouz-Moghaddam, S Nabavi… - Journal of …, 2023 - ieeexplore.ieee.org
The elastic properties of structural materials considerably influence the resonant frequency
of silicon MEMS resonators and their sensitivity to temperature variations. This work studies …

Oven controlled N++ [1 0 0] length-extensional mode silicon resonator with frequency stability of 1 ppm over industrial temperature range

W You, B Pei, K Sun, L Zhang, H Yang… - … of Micromechanics and …, 2017 - iopscience.iop.org
This paper presents an oven controlled N++[1 0 0] length-extensional mode silicon
resonator, with a lookup-table based control algorithm. The temperature coefficient of …

Analytical modeling of n-type doped silicon elastic constants and frequency-compensation of Lamé mode microresonators

P Rajai, H Ahmed, M Straeten, G Xereas… - Sensors and Actuators A …, 2019 - Elsevier
A model for predicting n-type doped silicon elastic constants is presented in this paper. The
model approach is based on an empirical exponential expression derived for the uniaxial …

Vibration device and manufacturing method of the same

H Yamada, K Umeda, T Kishi, T Nishimura - US Patent 10,291,202, 2019 - Google Patents
A vibration device that includes a support member, vibration arms connected to the support
member and each having an n-type Si layer which is a degenerate semiconductor, and …

Dependence of temperature coefficient of frequency (TCf) on crystallography and eigenmode in N-doped silicon contour mode micromechanical resonators

H Zhu, C Tu, G Shan, JEY Lee - Sensors and Actuators A: Physical, 2014 - Elsevier
This paper reports the effects of crystal orientations on the temperature coefficient of
frequency (TCf) of single crystal silicon square-plate micromechanical resonators vibrating …

Lamé resonator integrated with chevron-shaped thermal actuators to improve motional resistance and temperature stability

AR Kolahdouz-Moghaddam, S Nabavi… - Journal of …, 2023 - ieeexplore.ieee.org
This paper presents a capacitive bulk mode resonator operating in Lamé mode, where the
motional resistance and temperature stability are enhanced by implementing a set of …