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Learning in ECE 156A,B

Learning in ECE 156A,B. A Brief Summary. Before we start …. This course (ECE156A) is an entry point to begin an understanding on how design is done in the real world Verilog is just a tool to start I hope to teach you more about what’s going on in the real world

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Learning in ECE 156A,B

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  1. Learning in ECE 156A,B A Brief Summary Li-C. Wang, ECE, UCSB

  2. Before we start … • This course (ECE156A) is an entry point to begin an understanding on how design is done in the real world • Verilog is just a tool to start • I hope to teach you more about what’s going on in the real world • But if your scope is focused on only exam questions and HWs, you will find half of the lecture materials boring and useless Li-C. Wang, ECE, UCSB

  3. All About Handling The “Complexity” • Design and manufacturing of semiconductor products are very complex processes • Design methodologies • Manufacturing methodologies • All knowledge are to overcome complexity • A good engineer has effective ways to overcome complexity in a problem • Yet, complex problem usually doesn’t require complex solution Li-C. Wang, ECE, UCSB

  4. Two Scientific Thinkings • Realists – The results of scientific discovery are real laws in nature • Find the fundamental laws governing the complexity we see • Instrumentalists – The results of scientific discovery are instruments for making good prediction. The actual laws in nature can be very different from the ones discovered • Find ways to predict the behavior we observe, without understanding the laws behind Li-C. Wang, ECE, UCSB

  5. Two fundamental approaches • Deduction • Moving from general to particular • Eg. Learn theories and algorithms, apply to solve complex problems • Eg. Develop theories, models, and algorithms, and apply them to overcome the complexity • The approach in the past 40 years • Induction (Engineering) • Moving from particular to general • Eg. Learn from the behavior, find a solution to deal with the behavior • Eg. Learn from multiple behaviors, generalize a solution to deal with a class of behaviors • The problem to face in the next 10 years Li-C. Wang, ECE, UCSB

  6. Observation • In the past 40 years, design and manufacturing processes are dominated by the thinking of deduction • Develop the theories, models first • Work well when the complexity is low • In the next 10 years, the processes will mostly be dominated by induction methodologies • Too difficult to find theories and models behind complex phenomenon we encounter Li-C. Wang, ECE, UCSB

  7. Three Types of Skill Implementation skills (programming) • In the engineering world, there are three types of skill • Don’t have implementation skills -> marketing • Don’t have domain knowledge -> solving a wrong problem • Don’t have theoretical sense -> re-inventing the wheel Self-drive Knowing the limits Application domain knowledge Theoretical sense Experience Li-C. Wang, ECE, UCSB

  8. How to learn the three skills? • Implementation skill • Basic constructs can be taught • Skill to implement cannot be taught • Depend on self motivation and learning • Theoretical sense • Theories and concepts can be taught • There are only a few useful ones • Application of theories and concepts cannot be taught – It is based on experience • Application domain knowledge • Facts and phenomenon can be described • Empirical judgments are hard to teach Li-C. Wang, ECE, UCSB

  9. Lectures • In addition to Verilog, I also talk about “application domain knowledge” • Some that you can learn here are hard to get by self-study (and also most irrelevant to your grade) • Trends (facts and phenomenon) • Experience • You can always learn more by self-studying • Use the Internet • Practice your Verilog skills • Read papers and other books Li-C. Wang, ECE, UCSB

  10. 10 Things We Should Learn(ECE 156A -> ECE 156B) My Informal lecture Li-C. Wang, ECE, UCSB

  11. 10. Design means “constrained optimization” Li-C. Wang, ECE, UCSB

  12. 9. Design is based on models and models are not reality and they are never 100% correct Li-C. Wang, ECE, UCSB

  13. 8. No perfect design; you just need to be better than your competitor Li-C. Wang, ECE, UCSB

  14. 7. It is all about efficiently handling the complexity Li-C. Wang, ECE, UCSB

  15. 6. More important to put yourself into the right vision and perspective Li-C. Wang, ECE, UCSB

  16. 5. When searching for a solution in a complex space, it is more effective to know where you don’t have a solution Li-C. Wang, ECE, UCSB

  17. 4.Understand your problem; If you understand it well, the solution will come to you Li-C. Wang, ECE, UCSB

  18. 3. When something does not make an intuitive sense to you, it probably does not make sense Li-C. Wang, ECE, UCSB

  19. 2. All practical answers are simple; Only simple answers are practical Li-C. Wang, ECE, UCSB

  20. 1. A good engineer is always honest to the truth Li-C. Wang, ECE, UCSB

  21. Finally, there is no spoon(click on the link below) • http://www.youtube.com/watch_popup?v=dzm8kTIj_0M&vq=small Li-C. Wang, ECE, UCSB

  22. Instead … only try to realize the truth … Do not try to solve a difficult problemThat is impossible What truth? --- There is no problem Then, you will see …it is not the problem that you solve It is only yourself! Li-C. Wang, ECE, UCSB

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