System and method for calibrating temperatures sensor for integrated circuits
First Claim
1. A method for calibrating integrated circuit temperature sensors, comprising:
- sensing a first temperature using a first temperature sensor and a second temperature using a second temperature sensor, wherein the first temperature sensor is calibrated and is external to a package of the integrated circuit, and wherein the second temperature sensor is included in the integrated circuit;
increasing a temperature of the integrated circuit;
allowing the integrated circuit and the package to thermally equilibrate over a first period of time;
sensing a first slope of a temperature decay by the first temperature sensor;
sensing a second slope of a temperature decay by the second temperature sensor;
comparing the first temperature to the second temperature to determine a temperature offset;
comparing the first slope to the second slope to determine a slope offset; and
calibrating the second temperature sensor using the temperature offset and the slope offset.
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Accused Products
Abstract
In some embodiments, a method may be provided for calibrating integrated circuit temperature sensors. The method may include sensing a first temperature using a first temperature sensor and a second temperature using a second temperature sensor. The first temperature sensor may be calibrated and is external to a package of the integrated circuit. The second temperature sensor may be included in the integrated circuit. The method may include increasing a temperature of the integrated circuit. The method may include allowing the integrated circuit and the package to thermally equilibrate over a first period of time. The method may include sensing a first slope of a temperature decay by the first temperature sensor. The method may include sensing a second slope of a temperature decay by the second temperature sensor. The method may include calibrating the second temperature sensor responsive to a difference between the first and second temperatures and the first and second slopes.
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Citations
20 Claims
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1. A method for calibrating integrated circuit temperature sensors, comprising:
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sensing a first temperature using a first temperature sensor and a second temperature using a second temperature sensor, wherein the first temperature sensor is calibrated and is external to a package of the integrated circuit, and wherein the second temperature sensor is included in the integrated circuit; increasing a temperature of the integrated circuit; allowing the integrated circuit and the package to thermally equilibrate over a first period of time; sensing a first slope of a temperature decay by the first temperature sensor; sensing a second slope of a temperature decay by the second temperature sensor; comparing the first temperature to the second temperature to determine a temperature offset; comparing the first slope to the second slope to determine a slope offset; and calibrating the second temperature sensor using the temperature offset and the slope offset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-transitory computer accessible memory medium storing program instructions for calibrating integrated circuit temperature sensors, wherein the program instructions are executable by a processor to:
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sense a first temperature using a first temperature sensor and a second temperature using a second temperature sensor, wherein the first temperature sensor is calibrated and is external to a package of the integrated circuit, and wherein the second temperature sensor is included in the integrated circuit; increase a temperature of the integrated circuit; allow the integrated circuit and the package to thermally equilibrate over a first period of time; sense a first slope of a temperature decay by the first temperature sensor; sense a second slope of a temperature decay by the second temperature sensor; compare the first temperature to the second temperature to determine a temperature offset; compare the first slope to the second slope to determine a slope offset; and calibrate the second temperature sensor using the temperature offset and the slope offset. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for calibrating integrated circuit temperature sensors, comprising:
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sensing a first temperature using a first temperature sensor and a second temperature using a second temperature sensor, wherein the first temperature sensor is calibrated and is external to a package of the integrated circuit, and wherein the second temperature sensor is included in the integrated circuit; increasing a temperature of the integrated circuit comprising increasing an applied voltage to the integrated circuit such that the temperature of the integrated circuit is increased; allowing the integrated circuit and the package to thermally equilibrate over a first period of time; sensing a first slope of a temperature decay by the first temperature sensor; sensing a second slope of a temperature decay by the second temperature sensor; comparing the first temperature to the second temperature to determine a temperature offset; comparing the first slope to the second slope to determine a slope offset; calibrating the second temperature sensor using the temperature offset and the slope offset; and burning in a correction in the second temperature sensor using the calibration. - View Dependent Claims (20)
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Specification