Temperature calibration using on-chip electrical fuses
OwnerClaude Gauthier, Spencer Gold +4inventors
InventorsClaude Gauthier, Spencer Gold, Dean Liu, Kamran Zarrineh, Brian Amick, Pradeep Trivedi
Life of this patent
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Abstract
An integrated circuit that uses electrical fuses to store calibration information of a thermal monitoring device residing on the integrated circuit is provided. Such an integrated circuit allows a service processor of a computer system to query the integrated circuit for calibration information so that an accurate actual temperature measurement may be determined. Further, a method for reading and storing temperature calibration information on-chip is provided.
Claims18
An integrated circuit, comprising:
- a thermal monitoring device;
- and
- an electrical fuse register,
- wherein the electrical fuse register is used to store calibration information of the thermal monitoring device.
A method for storing temperature calibration information of a thermal sensor on an integrated circuit, comprising:
- taking a calibration measurement of the thermal sensor;
- and
- storing the calibration measurement into an electrical fuse register, wherein the electrical fuse register resides on the integrated circuit,
- wherein taking the calibration measurement of the thermal sensor occurs at a known temperature.
A method for determining an actual temperature at a location on an integrated circuit, comprising:
- taking a calibration measurement, at a known temperature, from a thermal monitoring device disposed at the location;
- storing the calibration measurement in an electrical fuse register disposed on the integrated circuit;
- and
- reading out the calibration measurement from the electrical fuse register,
- wherein the actual temperature at the location is determined based on the known temperature and the calibration measurement.
A method for determining a temperature on an integrated circuit, comprising:
- a step for taking a calibration information of a thermal sensor residing on the integrated circuit;
- a step for storing the calibration information on the integrated circuit;
- and
- a step for reading out the calibration information when the temperature needs to be determined.
An integrated circuit, comprising:
- means for storing calibration information on the integrated circuit;
- and
- means for reading out the calibration information when a temperature on the integrated circuit needs to be determined.
Dependencies are inferred from the claim text.