thermal interface material tester team members: joe henry andy hale andy hale brian francis brian...
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Thermal Interface Material Thermal Interface Material TesterTester
Team Members: Team Members: Joe HenryJoe Henry Andy HaleAndy Hale
Brian Francis Brian Francis Nick TenorioNick Tenorio
Industry Sponsor:Industry Sponsor: Tektronix TektronixIndustry Contact: Industry Contact: Chris ColemanChris Coleman
Academic Advisor: Academic Advisor: Gerry RecktenwaldGerry Recktenwald
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IntroductionIntroduction
TIMs!TIMs!– Aid heat transfer for electronic devicesAid heat transfer for electronic devices
ProjectProject– Current standard test method inadequateCurrent standard test method inadequate– Transient testing method is betterTransient testing method is better– Test equipmentTest equipment– Controlled environmentControlled environment
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Passive Puck
Active Puck
Surface Finish of 0.4 microns(Taken from ASTM Standard D5470-01)
Aluminum Pucks
Active Puck Chamber
O-Ring Gland
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Ultem ManifoldUltem Manifold
• Thermally Isolates active puck
• Guides incoming/outgoing water
• Provides the other half of the seal
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Active Puck and Manifold Assembly
Threaded InsertsPlumbing Fittings
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PlumbingPlumbing
Hot & Cold TempsHot & Cold Temps
Circulating LoopsCirculating Loops
Solenoid ValvesSolenoid Valves
Introduce electricalIntroduce electrical
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PlumbingPlumbing
Hot water @ 80 deg CHot water @ 80 deg C
Cold Water @ 10 deg CCold Water @ 10 deg C
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Plumbing
CHILLERWITHPUMP
HEATERWITHPUMP
CLOSED
OPEN
OPEN
CLOSED
OPEN
CLOSED
SUPPLYTO
PUCKRETURN
FROMPUCK
RETURNFROMPUCK
CHILLERWITHPUMP
HEATERWITHPUMP
OPEN
CLOSED
CLOSED
OPEN
CLOSED
OPEN
SUPPLYTO
PUCK RETURNFROMPUCK
RETURNFROMPUCK
Temperature Switching Circulating Loops
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StructureStructure
Force Application SystemForce Application System
Puck AlignmentPuck Alignment
Super StructureSuper Structure
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Force Application SystemForce Application System
• Spherical End Factor- Satisfies Parallelism
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Alignment SystemAlignment System
Guide RodsGuide Rods- Low friction- Low friction- Low heat conduction- Low heat conduction- Pucks are centered- Pucks are centered
Puck AccessPuck Access- Mid Plate Slots- Mid Plate Slots- Various Sizes- Various Sizes- Cam Lever- Cam Lever
Guide Rod
Teflon RailActuating Shaft
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Alignment SystemAlignment System
Guide Slots
Cam Lever
Guide Rods
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Safety Factor – 2.3Total Deformation – 0.03 in
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PneumaticsPneumatics
Pneumatic system functionPneumatic system function– User defined pressureUser defined pressure– Pressure measurementPressure measurement– Pressure held constantPressure held constant
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Pressure Regulator
Pneumatic System
User Interface
Pressure Gage
(Pressure Transducer
Behind Panel)
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PneumaticsPneumatics
Constant PressureConstant Pressure– Low friction air cylinderLow friction air cylinder– AccumulatorAccumulator
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PneumaticsPneumatics
Low Friction Air CylinderLow Friction Air Cylinder– Glass CylinderGlass Cylinder– Graphite PistonGraphite Piston– Grams of frictionGrams of friction
Picture from www.airpot.com
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PneumaticsPneumatics
AccumulatorAccumulator– Pressure vesselPressure vessel– Adds volume to systemAdds volume to system– Helps keep pressure constantHelps keep pressure constant
Picture from www.bimba.com
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PneumaticsPneumatics
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Questions?