Performance optimization of SiC piezoresistive pressure sensor through suitable piezoresistor design

B Tian, H Shang, L Zhao, W Wang - Microsystem Technologies, 2021 - Springer
Silicon carbide is considered as a more suitable material for piezoresistive pressure sensors
in a high-temperature environment due to its excellent characteristics. In this paper …

Silicon carbide technology

PG Neudeck - 2006 - ntrs.nasa.gov
Silicon carbide based semiconductor electronic devices and circuits are presently being
developed for use in high-temperature, high-power, and high-radiation conditions under …

Piezoresistive n-type 4H-SiC pressure sensor with membrane formed by mechanical milling

T Akiyama, D Briand, NF de Rooij - SENSORS, 2011 IEEE, 2011 - ieeexplore.ieee.org
A 4H-SiC pressure sensor with piezoresistive transducers, for harsh environment
applications, eg, high temperature (~ 650° C) and/or in corrosive chemicals is presented …

Stable 600 C silicon carbide MEMS pressure transducers

RS Okojie - Sensors and Systems for Space Applications, 2007 - spiedigitallibrary.org
This paper presents a review of recent results of silicon carbide (SiC) piezoresistive
pressure transducers that have been demonstrated to operate up to 600° C. The results offer …

[PDF][PDF] High temperature electronics, communications, and supporting technologies for Venus missions

GW Hunter, RS Okojie, PG Neudeck… - Electr …, 2006 - pdfs.semanticscholar.org
HIGH TEMPERATURE ELECTRONICS, COMMUNICATIONS, AND SUPPORTING
TECHNOLOGIES FOR VENUS MISSIONS Page 1 Glenn Research Center at Lewis Field HIGH …

High Temperature Characteristics of Piezoresistive Silicon Carbide Pressure Sensors Implemented by Leadless Packaging

L Wang, Y Zhao, Y Yang, Y Wang… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
This paper presents the process of fabricating pressure sensor chip based on N-type 4H-SiC
with high doping and realizing leadless packaging. The piezoresistive functional layer of the …

SiC pressure sensor for detection of combustor thermoacoustic instabilities [aircraft engine applications]

RS Okojie, JC DeLaat, JR Saus - The 13th International …, 2005 - ieeexplore.ieee.org
We have utilized a single crystal silicon carbide (SiC) pressure sensor to validate the
existence of thermo-acoustic instability at 310 Hz in a combustor test rig operating at 420/spl …

Reducing DRIE-induced trench effects in SiC pressure sensors using FEA prediction

RS Okojie, CW Chang, LJ Evans - Journal of …, 2011 - ieeexplore.ieee.org
Burst force of several 4H-SiC pressure sensor diaphragms fabricated by reactive ion etching
(RIE) is measured and coupled with finite-element (FE) analyses to extract a fracture …

High temperature dynamic pressure measurements using silicon carbide pressure sensors

RS Okojie, RD Meredith… - Additional Papers …, 2014 - meridian.allenpress.com
Un-cooled, MEMS-based silicon carbide (SiC) static pressure sensors were used for the first
time to measure pressure perturbations at temperatures as high as 600° C during laboratory …

Failure mechanisms in MEMS based silicon carbide high temperature pressure sensors

RS Okojie, P Nguyen, V Nguyen… - 2007 IEEE …, 2007 - ieeexplore.ieee.org
The paper reports recent results of the long term reliability evaluation of single crystal silicon
carbide (SiC) piezoresistive pressure sensors operated up to 500 degC. In-depth failure …