Loading patent…
AssigneeAnalog Devices, Inc.
InventorsWilliam Allan Lane, Paul Martin Lambkin
Estimating the term…
A temperature sensor for use in an infrared detector the temperature sensor comprising: a first resistor associated with a first thermal path having a first thermal conductivity between the first resistor and a substrate and a first temperature coefficient of resistance; a second resistor associated with a second thermal path having a second thermal conductivity between the second resistor and the substrate and a second temperature coefficient of resistance, and a measurement circuit responsive to changes in the resistance of the first and second resistors to estimate changes in temperature, and wherein at least one of (a) the first and second thermal conductivities are different or (b) the first and second temperature coefficients of resistance are different.
A temperature sensor for use in an infrared detector the temperature sensor comprising:
A method of measuring a temperature of a substrate, comprising providing first and second resistors having different thermal conductivities between the resistors and the substrate, passing a current through the resistors such that they are heated by the current, and using a difference in the resistances of the resistors to estimate the temperature of the substrate.
A method of measuring a temperature of a substrate, comprising forming first and second resistors having different temperature coefficients of resistivity and in thermal contact with the substrate via paths which may have the same or different thermal conductivities, and where a current is passed through the resistors such that the resistances can be measured, and the relationship between the resistances of the resistors is used to estimate the temperature of the substrate.
Dependencies are inferred from the claim text.