Device for sensing temperature of an electronic chip

The present invention is related to sensing temperature and is more particularly related to sensing temperature of an electronic chip at the chip level. A method and apparatus for measuring the temperature on an electronic chip. The Apparatus includes a thermal sense element on the chip, a power sup...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Covi, Kevin, Longhi, Raymond, Seminaro, Edward J, Shevach, Steven G
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention is related to sensing temperature and is more particularly related to sensing temperature of an electronic chip at the chip level. A method and apparatus for measuring the temperature on an electronic chip. The Apparatus includes a thermal sense element on the chip, a power supply passing electrical current through said thermal sense element at a known voltage and temperature, and a measuring circuit determining the initial resistance of the thermal sense element at said known voltage and temperature. The measuring circuit measures the change of the resistance of the thermal sense element as the temperature of the electronic chip changes, and compares the change in resistance of the thermal sense element to the initial resistance. The measuring circuit determines the temperature of the electronic chip from the initial resistance and change in resistance of the thermal sense element during the operation of the electronic chip.