THERMAL BOND VERIFICATION
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United States of America Patent
Stats
-
Dec 10, 2002
Grant Date -
Dec 26, 2002
app pub date -
Jun 25, 2001
filing date -
Jun 25, 2001
priority date (Note) -
Granted
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Abstract
A system and method for evaluating the thermal bond between a heat-producing device and a heat-absorbing apparatus. The heat-producing device may be a CPU, such as an INTEL PENTIUM microprocessor, and the heat-absorbing apparatus may be a heat sink. The two may be joined with a heat-conducting substance such as thermal grease or adhesive. In one exemplary embodiment, the heat-producing device is operated at a first power level, a first temperature measurement is then taken, the device is operated at a second power level, and then a second temperature measurement is then taken. The thermal resistance is then calculated, which may involve subtracting the second temperature from the first, and may involve dividing by the power level. The first power level may be full power, and the second power level may be near zero. The first temperature may be measured when equilibrium temperatures have been reached, and the second temperature may be measured a predetermined amount of time after the second power level is initiated, which may be just enough time for the temperatures of the CPU and the heat sink to equalize. The CPU may perform the calculations, and the temperature may be measured with an on-board thermal sensor which may be a thermal diode.
First Claim
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- 15 United States
- 10 France
- 8 Japan
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- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SBS TECHNOLOGIES INC | AFC BUILDING #5 2400 LOUISIANA BLVD N E ALBUQUERQUE NM 87110 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Schonath, Peter | Augsburg, DE | 1 | 29 |
Weller, Steven A | Milpatas, CA | 2 | 100 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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