Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2008-02-19
2010-12-21
Charioui, Mohamed (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C702S130000, C374S163000, C374S166000, C165S058000, C165S104110
Reexamination Certificate
active
07856341
ABSTRACT:
Sensors are located on first and second regions of a heat sink, with a portion of the heat sink interposed between the first and second region sensors. The heat sink is connected to a component by an attachment that conducts heat from the component to the heat sink, and a third sensor is located on the component or the attachment with a portion of the attachment disposed between the third sensor and the first and second heat sink region sensors. Temperature readings from the sensors are compared to identify a failing one of the heat sink, the attachment portion, and the component with respect to heat conduction, which includes identifying the interposed heat sink portion as failing in response to a divergence between temperature inputs from the first and second heat sink region sensors. Rate-of-rise temperature readings may also be observed and compared, including to historical values.
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Carlson Brian L.
Chamberlin Bruce J.
Hoffmeyer Mark K.
Katnani Ahmad D.
Kelly Matthew S.
Charioui Mohamed
Daugherty Patrick J.
Desta Elias
Driggs, Hogg, Daugherty & Del Zoppo Co., LPA
International Business Machines - Corporation
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