Resources Contact Us Home
Combined semiconductor gas sensor

Image Number 5 for United States Patent #5298783.

The present invention relates to a combined semiconductor gas sensor, this sensor is constituted by combining two portions, each of the portions is made of a different gas sensitive material, their resistance exhibit different variation with the variation of the density of a specific gas, a detecting signal is led out from the junction of the two portion. Because of the mutual compensation and propagation effect of the two portions of the above mentioned gas sensor, the stability and/or sensitivity as well as the stability to temperature and humidity and the initial relaxation time can be improved. Gas sensors of different characteristics can be obtained by different combinations of two different gas sensitive materials selected according to need.

  Recently Added Patents
MOS transistor having combined-source structure with low power consumption and method for fabricating the same
Information retrieval system, information retrieval method, and information retrieval program
Reovirus for the treatment of cellular proliferative disorders
Case for electronic device
Inkjet ink
Method of manufacturing semiconductor device
Split-ring resonator creating a photonic metamaterial
  Randomly Featured Patents
Detector for single-user coded signals in the presence of interference
Method and apparatus for conveying material and ejector apparatus
Advanced spider fixture
Inductively coupled plasma apparatus
Wafer level chip scale package, method of manufacturing the same, and semiconductor chip module including the wafer level chip scale package
Systems and methods for frequency offset correction in a digital radio broadcast receiver
Polymeric stabilizers for polyolefins
Optical apparatus having a vibration compensation device operable during photographic preparations
System level in-situ integrated dielectric etch process particularly useful for copper dual damascene
Durable optical element