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Mobile Environment Chamber Internal/External Search

Mobile Environment Chamber Internal/External Search. Team members:. Duc Tran Tuan Ngo Giang Nguyen. Peter Elab Thien Nguyen The Duong. Advisor:. Dr. Mark Weislogel. Problem Identification. Needs Assessment. Objective. Requirements. Concept Generation. Concept Evaluation.

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Mobile Environment Chamber Internal/External Search

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  1. Mobile Environment Chamber Internal/External Search Team members: Duc Tran Tuan Ngo Giang Nguyen Peter Elab Thien Nguyen The Duong Advisor: Dr. Mark Weislogel

  2. Problem Identification Needs Assessment Objective Requirements Concept Generation Concept Evaluation We are here! Proposal PDS • Outline • PDS Review • External Search • Internal Search • Concept Evaluation and Selection • Conclusion

  3. PDS Review • Requirements • Temp. range: -5oC 105oC • Accuracy: ± 2oC • Temp. uniformity: ± 4oC throughout the chamber • Ramp rate:10oC /minute • Airflow: 0.5 to 5 m/s across DUT Controller PC Set T Facility Chamber Actuator Solid State Drives

  4. External search • Literature/Patent Search • Disk Drive Test Chamber • Socket for Disk Drive Tester • Efficient Air Flow Chamber • De-humidification

  5. External search • Literature/Patent Search • Disk Drive Test Chamber • U.S. Patent No. 5,851,143 • Socket for Disk Drive Tester • Efficient Air Flow Chamber • De-humidification

  6. External search • Literature/Patent Search • Disk Drive Test Chamber • Socket for Disk Drive Tester • Efficient Air Flow Chamber • De-humidification U.S. Patent 6,124,707 (Samsung) U.S. Patent 6,806,700 (Pemstar)

  7. External search • Literature/Patent Search • Disk Drive Test Chamber • Socket for Disk Drive Tester • Efficient Air Flow Chamber • U.S. Patent No. 7,111,211 • De-humidification

  8. External search • Literature/Patent Search • Disk Drive Test Chamber • Socket for Disk Drive Tester • Efficient Air Flow Chamber • De-humidification • Compressed dry air • Condensation (from air stream)

  9. External search Similar Product Benchmarking

  10. External search Interview expert Dr.Mark Weislogel Thermal and Fluid Sciences Group • Thermal & Fluid problem expert • Concept review & suggestion • Thermal analysis guidance

  11. internal search Concept tree Environmental Chamber Controller Heating/Cooling Sensors Direct connect Gateway Counter Flow Conventional Thermo-couples Ther-mistors RTD

  12. internal search • Electrical Components • PID Controller • Heater • Temperature sensor • Chiller • Industrial temperature and process controllers • Automatically adjust outputs based on sensor feedback • Control process variables: temperature, flow, pressure and relative humidity • Real-time communication with PC • Intel recommended

  13. internal search • Electrical Components • PID Controller • Heater • Temperature sensor • Chiller • Wide-range of temperature: 200oC (390F)  1200oC (2200F) • Selection based on actual mechanical shape and size • Off-the-shelf heater is preferred (Intel’s inventory)

  14. internal search • Electrical Components • PID Controller • Heater • Temperature sensor • Chiller • Thermocouple • Voltage output • Low accuracy • Very high temp. range • RTD(Resistive Thermal Devices) • Resistance output (metal based) • Below 600 °C range • High accuracy and repeatability (low drift) • Thermistor • Resistance output (ceramic/polymer based) •  Limited temperature range (−90 °C to 130 °C) • Small package and cheap

  15. internal search • Electrical Components • PID Controller • Heater • Temperature sensor • Chiller • Re-circulating chillers • Min temperature: -40oC • Reservoir Size: 2 Liters • Intel provided

  16. internal search Heating/Cooling Concepts • Technical Problems that designs must address • Heat Flux • Condensation • Thermal uniformity • Airflow requirements

  17. Concept selection Counter flow Design ` Cooling Coils (Chilled Water) Intel SSD’s (Solid State Drives) Heating Coils (Resistance) Circulating Fans

  18. Concept selection Low Risk Design Intel SSD’s (Solid State Drives) Heating Coils (Resistance) Cooling Coils (Chilled Water)

  19. Concept selection Conventional Design

  20. Conclusion • Low Risk Design • Conventional Design • Counter flow Design • Further Plans • Continue Analysis on each design • Computer Simulation • Concept/Design Selection • Part Selection

  21. Q & A

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