Patent ID: 6292089
Filing Date: 2001-09-18
Classification: G01J,G01K,H01L

Abstract:
A temperature sensing structure comprising:a. a substrate;b. a thermistor layer carried by the substrate and having a resistance that is inversely related to temperature, the thermistor layer including a monocrystalline quantum well structure that includes alternating quantum well layers and barrier layers;c. a first electric contact layer on a first face of the thermistor layer; andd. a second electric contact layer on a second face of the thermistor layer, wherein the thermistor layer has a resistance that is measured between the fast and second electric contact layers, and wherein a parameter selected from the group consisting of barrier layer band-edge energy, doping level of the quantum well layers, quantum well leyer thickness, barrier layer thickness, and combinations thereof is selected to obtain a temperature coefficient for the structure that is at least 4.0% at room temperature.