Temperature calibration using on-chip electrical fuses
First Claim
Patent Images
1. 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.
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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.
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Citations
18 Claims
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1. An integrated circuit, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for storing temperature calibration information of a thermal sensor on an integrated circuit, comprising:
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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. - View Dependent Claims (8, 9, 10, 11)
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12. A method for determining an actual temperature at a location on an integrated circuit, comprising:
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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. - View Dependent Claims (13, 14, 15, 16)
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17. A method for determining a temperature on an integrated circuit, comprising:
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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.
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18. An integrated circuit, comprising:
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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.
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Specification