1. Thermal Interface Material Tester
Team Members: Joe Henry
Andy Hale
Brian Francis
Nick Tenorio
Industry Sponsor: Tektronix
Industry Contact: Chris Coleman
Academic Advisor: Gerry Recktenwald

2. Introduction TIMs! Project Aid heat transfer for electronic devices
Current standard test method inadequate
Transient testing method is better
Test equipment
Controlled environment

4. Aluminum Pucks Passive Puck Active Puck Surface Finish of 0.4 microns
(Taken from ASTM Standard D )
Active Puck Chamber
Active Puck
O-Ring Gland

5. Ultem Manifold Guides incoming/outgoing water
Thermally Isolates active puck
Guides incoming/outgoing water
Provides the other half of the seal

6. Active Puck and Manifold Assembly
Plumbing Fittings
Threaded Inserts

8. Plumbing Hot & Cold Temps Circulating Loops Solenoid Valves
Introduce electrical

9. Plumbing
Hot 80 deg C
Cold 10 deg C

10. Plumbing
Temperature Switching
Circulating Loops

11. Structure
Force Application System
Puck Alignment
Super Structure

12. Force Application System
Spherical End Factor
- Satisfies Parallelism

14. Alignment System Guide Rods - Low friction - Low heat conduction
- Pucks are centered
Puck Access
- Mid Plate Slots
- Various Sizes
- Cam Lever
Teflon Rail
Actuating Shaft

15. Alignment System
Guide Slots
Cam Lever
Guide Rods

16. Safety Factor – 2.3
Total Deformation – 0.03 in

17. Pneumatics Pneumatic system function User defined pressure
Pressure measurement
Pressure held constant

18. Pneumatic System User Interface Pressure Gage Pressure Regulator
(Pressure Transducer
Behind Panel)

19. Pneumatics
Constant Pressure
Low friction air cylinder
Accumulator

20. Pneumatics Low Friction Air Cylinder Glass Cylinder Graphite Piston
Grams of friction
Picture from

21. Pneumatics Accumulator Pressure vessel Adds volume to system
Helps keep pressure constant
Picture from

22. Pneumatics

23. Questions?