Transcript CHE/ME 109 - Heat Transfer in Electronics

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