Oxidised Macro Porous Silicon based Thermal Isolation in the Design of Microheater for MEMS based Gas Sensors

نویسندگان

  • P. Phukan
  • C. Roychoudhury
  • B. T. Reddy
  • P. Bhattacharya
چکیده

Chemical gas sensors suffers from the drawbacks such as high temperature ((>=300oC) and very high power consumption for sensing inflammable gases like CO, CH4 etc. In this work a new technique for thermal isolation in MEMS gas sensors is presented by coupling micromachining of bulk silicon and oxidized macro porous silicon (OMPS) layer to reduce the

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Analytical Approach for Vibration Analysis of a Microsensor with Two layers of Silicon and Piezoelectric based on MCST

The vibration analysis is an important step in the design and optimization of microsensors. In most of the cases, COMSOL software is employed to consider the size-dependency on the dynamic behavior in the MEMS sensors. In this paper, the Modified Couple Stress Theory (MCST) is used to capture the size effect on dynamic behavior in a microsensor with two layers of the silicon and piezoelectric. ...

متن کامل

Design & Electro-Thermal Analysis of Microheater for Low Temperature MEMS based Gas Sensor

The advent of nanocrystalline metal oxide semiconductor permits microheater to be incorporated into integrated gas sensors to heat the sensing layer to a low temperature. The low temperature sensing allows the use of a relatively thin silicon membrane instead of zero Silicon membrane resulting into temperature uniformity across the entire active area (2mmx2mm) which in turn reduces the reliabil...

متن کامل

Fast-Response, Sensitivitive and Low-Powered Chemosensors by Fusing Nanostructured Porous Thin Film and IDEs-Microheater Chip

The chemiresistive thin film gas sensors with fast response, high sensitivity, low power consumption and mass-produced potency, have been expected for practical application. It requires both sensitive materials, especially exquisite nanomaterials, and efficient substrate chip for heating and electrical addressing. However, it is challenging to achieve repeatable microstructures across the films...

متن کامل

Synthesis and Characterization of Mechanical Behavior and Thermal Shock Resistance of Macro-Porous SiC Solar Absorber

The concentrated solar power (CSP) is one of the renewable energy sources in which solar irradiation heat energy will be used in a steam turbine to generate electrical grid. Solar radiation is absorbed by a solar receiver reactor on the surface of a porous solar absorber. In this survey, synthesis and mechanical/thermal characterization of micro-porous silicon carbide (SiC) absorber to be used ...

متن کامل

Thermal characterization of a microheater for micromachined gas sensors

In this paper, a new four-point probe, double spiral heating element configuration for micromachined gas sensors is proposed and a simple analytical model of the steady-state thermal behavior of the microheater is presented. A testing procedure is suggested, based on simple two-wire and four-wire resistance versus power measurements, together with an iterative extraction procedure for the param...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2017