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lecture01-shortversion - Overview of Design of Design...

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10/5/2009 1 Overview of Design Overview of Design Methodologies Lecture 1 ECE 156A 1 My engineering triangle Implementation skills (programming) Self- drive A d CE (ECE) i h ld h th th Theoretical sense Application domain knowledge A feel of the market Knowing the limits ECE 156A 2 A good CE (ECE) engineer should have these three aspects of knowledge and skills Don’t have implementation skills -> marketing Don’t have domain knowledge -> solving a wrong problem Don’t have theoretical sense -> cannot be a true R&D
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10/5/2009 2 Lectures Concern “application domain knowledge” Less on implementation skills or building a strong theoretical sense d h h h I am more interested in teaching things that are difficult to learn by self-study Market trends – Experience Vision and philosophy Complex algorithms • And I assume you will study those that can be ECE 156A 3 And I assume you will study those that can be learned by self-study Use the Internet Practice your Verilog skills Read papers and other books Design Chip design is a very complex process You need to worry about two main things – Functionality Properties or characteristics How to ensure those before making the chips? To start, you need some sort of “formal model” to describe your design This formal model is understandable by some software tools that can do analysis on the design To build a formal model, you need a description language This language is so important because everything else in the design process depends on it ECE 156A 4
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10/5/2009 3 How Complex? Over the years, the design industry follows this so-called “Moore’s Law” By advancing the technologies so fast, we are making chips today that are so complex The complexity of making chips is so high today that it can go beyond control very soon if we don’t do something about it ECE 156A 5 Moore’s law? Gordon Moore , Intel co-founder (1968) – Visit http://www.pbs.org/transistor/album1/moore/index.html Moore’s Law – rule of thumb in semiconductor industry (a reference for competition) – He said that the number of “components” on a single silicon chip would double every 1.X year – Somebody says double every 1 year – Somebody says double every 1.5 years – Most recently, we say “double every 2 years Some people also say the “ performance double every 1.x year In short, “industry should move fast!”
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10/5/2009 4 Power Wall Power Wall Need to turn! While manufacturing guys are busy improving their process, ECE people are developing new designs and design methods In Summary In the past 20 years, manufacturing technology improved so fast – That we were busy building more and more complex designs We didn’t actually have time to really think hard to optimize our design to better utilize the resource such as Power In the next few years, we will be working on ti i i d i optimizing our designs – Continue to push for better performance – But not utilizing more power
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