Patent ID: 8025843
Filing Date: 2011-09-27
Classification: G01N,Y10S,Y10T

Abstract:
1. A hydrogen sensor comprising: a non-oxide semiconductor in a form of a thin-film layer, the semiconductor having a resistance; a hydrogen absorber provided over the semiconductor, the hydrogen absorber and a part of the semiconductor underneath thereof forming a hydrogen detection portion, wherein the resistance of the semiconductor changes in response to hydrogen absorption into the hydrogen absorber; and a pair of electrodes for measuring a change in the resistance of the semiconductor, the pair of electrodes being provided on the semiconductor on each side of the hydrogen absorber so as to sandwich the hydrogen absorber therebetween, wherein each of the electrodes is spaced apart from the hydrogen absorber such that the electrodes are not in direct contact with the hydrogen absorber, and wherein the electrodes are configured to electrically connect to the hydrogen absorber only through the semiconductor.