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CHE/ME 109 Heat Transfer in Electronics LECTURE 1 - INTRODUCTION PRELIMINARY INFORMATION • PRE-REQUISITE CHECK SHEET • WEB SITE IS USED TO TRANSMIT INFORMATION http://www.engr.sjsu.edu/~jennimi/Classes/CHEME109/ GREENSHEET REVIEW • SCHEDULE • TEXT • TEXT IS THE BASIS FOR HOMEWORK PROBLEMS • BE CERTAIN TO REVIEW ALL EXAMPLES • CONCEPT PROBLEMS ARE MARKED WITH A C – YOU SHOULD BE ABLE TO ANSWER ALL OF THOSE – THESE PROBLEMS PROVIDE A GOOD PRE-TEST REVIEW SET GREENSHEET REVIEW • HOMEWORK • IS A SIGNIFICANT PART OF THE GRADE • FOLLOW THE FORMAT TO GET CREDIT • MAKE IT LEGIBLE • USE SIGNIFICANT FIGURES • WILL NOT BE ACCEPTED LATE HOMEWORK SOLUTIONS • COMPUTER BASED SOLUTIONS ARE ALLOWABLE • SPREADSHEET – MAKE SURE TO USE VARIABLE NAMES IN EQUATIONS NOT CELL NUMBERS – DO NOT USE AUTOMATIC CURVE FITS OR SMOOTHING ON GRAPHS • MATLAB • MATHCAD • EES - IS AN EQUATION SOLVER THAT COMES WITH THE TEXT. THIS MAY BE USED BUT THERE WILL NOT BE ANY SEPARATE TRAINING PROVIDED IN THE CLASS • MUST BE INDIVIDUAL SOLUTIONS - COPIES ARE NOT ACCEPTABLE • SAME SOLUTION = SAME GRADE = 0 OBJECTIVES FOR THIS COURSE H • A GROUP OF COURSE LEARNING OBJECTIVES (CLO’s) HAS BEEN DEVELOPED AND IS ATTACHED TO THE GREENSHEET. – IN SIMPLE TERMS, YOU SHOULD LEARN ABOUT ENERGY MANAGEMENT FOR ELECTRONIC SYSTEMS • PRIMARILY HEAT MANAGEMENT • HEAT INCREASES RESISTANCE AND DECREASES EFFICIENCY AND RELIABILITY • OVERHEATING CAN RESULT IN FAILURES OVERHEATING FACTORS CPU CHANGES OVER TIME 10,000,000,000 Dual Core Itanium 2 1,000,000,000 Number of Transistors Itanium 2 Core 2 Duo Moore's Law 100,000,000 Pentium M Pentium 4 Pentium Pro 10,000,000 486 1,000,000 286 Pentium III Pentium II Pentium 386 100,000 8086 8088 10,000 8008 8080 4004 1,000 1970 1975 1980 1985 1990 1995 2000 2005 2010 TRANSISTOR DENSITIES Transistor Density (M/cm2) 10000 1000 1997 NTRS 2001 ITRS 2003 ITRS 2005 ITRS 2007 ITRS 100 10 1 1995 NTRS – National Technology Roadmap for Semiconductors ITRS – International Technology Roadmap for Semiconductors 2000 2005 2010 2015 Year of Production http://vlsicad.ucsd.edu/Publications/Conferences/261/c261.pdf 2020 2025 TRANSISTOR DENSITIES 300 Feature Size (nm) 250 1997 NTRS 2001 ITRS 2003 ITRS 2005 ITRS 2007 ITRS 200 150 100 50 0 1995 2000 2005 2010 2015 Year of Production http://vlsicad.ucsd.edu/Publications/Conferences/261/c261.pdf 2020 2025 CLOCK FREQUENCIES On-Chip Clock Frequency (MHz) 100000 10000 1997 NTRS 2001 ITRS 2003 ITRS 2005 ITRS 2007 ITRS 1000 100 1995 2000 2005 2010 2015 Year of Production http://vlsicad.ucsd.edu/Publications/Conferences/261/c261.pdf 2020 2025 VOLTAGE 3 Power Supply Voltage (V) 2.5 1997 NTRS 2001 ITRS 2003 ITRS 2005 ITRS 2007 ITRS 2 1.5 1 0.5 0 1995 2000 2005 2010 2015 Year of Production http://vlsicad.ucsd.edu/Publications/Conferences/261/c261.pdf 2020 2025 High Performance Power Dissipation (W) POWER DISSIPATION 350 300 250 200 150 1997 NTRS 2001 ITRS 2003 ITRS 2005 ITRS 2007 ITRS 100 50 0 1995 2000 2005 2010 2015 Year of Production http://vlsicad.ucsd.edu/Publications/Conferences/261/c261.pdf 2020 2025 OBJECTIVES FOR THIS COURSE • OTHER CONCEPTS IN THE COURSE WILL MAKE IT EASIER FOR YOU TO WORK WITH OTHER DISCIPLINES – THIS IS IMPORTANT WITH REGARD TO CONTROL SYSTEM INTERFACES AND RESPONSE TIMES – IT ALSO ALLOW AN APPRECIATION FOR HOW THE PHYSICAL COMPONENTS CAN AFFECT THE PERFORMANCE OF THE DEVICES. COURSE STRUCTURE • HOMEWORK AS A LEARNING TOOL – HOMEWORK IS COMPLETED AHEAD OF THE LECTURE – HOMEWORK SOLUTIONS ARE DISCUSSED DURING THE LECTURE TO DETERMINE AREAS THAT NEED DISCUSSION • EXAMS WILL NOT BE REPEATS OF HOMEWORK PROBLEMS – THE SAME CONCEPTS WILL BE INCLUDED, BUT THE SOLUTIONS WILL REQUIRE UNDERSTANDING THE CONCEPTS IN A NONLINEAR FASHION – IF YOU CAN ONLY UNDERSTAND A CONCEPT IN ONE APPLICATION, THEN YOU WILL NOT RECEIVE A HIGH TEST SCORE