Effect of etch holes on the capacitance and pull-in voltage in MEMS tunable capacitors

DM Fang, XH Li, Q Yuan, HX Zhang - International journal of …, 2010 - Taylor & Francis
Microelectromechanical systems (MEMS) tunable capacitors, switches or actuators are
widely applied in wireless communication systems. In the fabrication process etch holes are …

RF MEMS fractal capacitors with high self-resonant frequencies

AM Elshurafa, AG Radwan, A Emira… - Journal of …, 2011 - ieeexplore.ieee.org
This letter demonstrates RF microelectromechanical systems (MEMS) fractal capacitors
possessing the highest reported self-resonant frequencies (SRFs) in PolyMUMPS to date …

Capacitance modelling of perforated RF MEMS shunt switch

CG Chand, R Maity, K Srinivasa Rao, NP Maity… - Microsystem …, 2022 - Springer
This paper presents the capacitance modelling of RF MEMS shunt switch by using the
parallel plate, fringing field, and parasitic capacitance. The model carried out fringing …

Effects of etching holes on complementary metal oxide semiconductor–microelectromechanical systems capacitive structure

WH Tu, WC Chu, CK Lee… - Journal of intelligent …, 2013 - journals.sagepub.com
Etching the large area of sacrificial layer under the microstructure to be released is a
common method used in microelectromechanical systems technology. In order to completely …

The fringe-capacitance of etching holes for CMOS-MEMS

YT Wang, YC Hu, WC Chu, PZ Chang - Micromachines, 2015 - mdpi.com
Movable suspended microstructures are the common feature of sensors or devices in the
fields of Complementary-Metal-Oxide-Semiconductors and Micro-Electro-Mechanical …

Design considerations in MEMS parallel plate variable capacitors

AM Elshurafa, EI El-Masry - 2007 50th Midwest Symposium on …, 2007 - ieeexplore.ieee.org
This paper presents some important design considerations usually ignored that need to be
taken into account when designing MEMS parallel plate variable capacitors. Explicitly, it …

Modeling and fabrication of an RF MEMS variable capacitor with a fractal geometry

AM Elshurafa, KN Salama… - 2013 IEEE International …, 2013 - ieeexplore.ieee.org
In this paper, we model, fabricate, and measure an electrostatically actuated MEMS variable
capacitor that utilizes a fractal geometry and serpentine-like suspension arms. Explicitly, a …

The effects of non-uniform nanoscale deflections on capacitance in RF MEMS parallel-plate variable capacitors

AM Elshurafa, EI El-Masry - Journal of micromechanics and …, 2008 - iopscience.iop.org
This paper analyzes in detail the effect of nanoscale non-uniform deflections, caused by the
residual stress phenomenon and/or applied actuation dc voltages, on the capacitance in RF …

Design, modelling and control of IRST capacitive MEMS microphone

D Cattin - 2009 - eprints-phd.biblio.unitn.it
Condenser MEMS microphones are becoming a promising technology to substitute the
current standard microphones, and modelling such systems has become very important for …

New analytical capacitance modeling of the perforated switch considering the fringing effect

KS Rao, BVS Sailaja, KG Sravani, KV Vineetha… - IEEE …, 2019 - ieeexplore.ieee.org
Movable suspended microstructures are common features of sensors and devices in the
field of micro electro mechanical systems (MEMS). This paper addresses the study of …