CMOS compatible active thermopiles for noise added theory

Chih Hsiung Shen, Kuan Chou Hou

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Recently a novel signal processing theory related with noise has grown and proven. Certain complex systems can improve performance with added optimal noise that classical theory cannot explain. Their behavior may be represented by a simplified scheme that combines both a deterministic and stochastic source. To that end, we are using noise in remote temperature sensing system to enhance their function without altering the system. A new investigation of noise added scheme has been realized by an embedded heater for CMOS compatible thermoelectric infrared sensor. The design and fabrication of thermopile sensors are realized by using 1.2μm CMOS IC technology combined with a subsequent anisotropic front-side etching. We firstly develop an active thermopile with a heater embedded which is easily and naturally driven by a noise generation circuit. The stochastic resonance theory can be realized as a reduction in threshold of temperature detection. We have shown the possibility of improving the performance of remote temperature sensing system in the presence of noise. The strategy depends on the application. Stochastic resonance can reduce threshold detection resolution and greatly improve the temperature detection limit with a low cost scheme without using higher resolution ADC.

Original languageEnglish
Pages (from-to)309-316
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5472
DOIs
Publication statusPublished - 2004 Sep 13
EventNoise and Information in Nanoelectronics, Sensors, and Standards II - Maspalomas
Duration: 2004 May 262004 May 28

Fingerprint

Thermopiles
thermopiles
CMOS
Stochastic Resonance
Sensing
heaters
Temperature
Infrared Sensor
Detection Limit
Sensors
Etching
Signal Processing
Large scale systems
Complex Systems
Fabrication
Signal processing
High Resolution
thresholds
temperature
sensors

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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CMOS compatible active thermopiles for noise added theory. / Shen, Chih Hsiung; Hou, Kuan Chou.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5472, 13.09.2004, p. 309-316.

Research output: Contribution to journalConference article

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