IEEE’s Hands on Practical Electronics (HOPE) Lesson 10: Fabrication.

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Presentation transcript:

IEEE’s Hands on Practical Electronics (HOPE) Lesson 10: Fabrication

Last Week CMOS Digital Logic –Logic Gates: NOT, AND, OR –Logic Gates: NAND, NOR Constructing simple CMOS logic gates

This Week Wrap Up Course Evaluations Final Projects

Circuits Today Circuits today are significantly smaller than those we built in class The miniaturization continues because they: –Are cheaper –Are faster –Are More portable –Use less energy

Integrated Circuits (IC) All the functionality we have seen such as resistors, transistors, capacitors and voltage dividers etc. is now printed on a chip.

Integrated Circuits How do you make something so complex so small? –Pentium 4 has over 125 million transistors

How to make an IC 1) Make a schematic 2) Make a mask

How to make an IC 3) Use UV light and the mask to etch a pattern on the silicon 4) Shine lights of certain elements to dope the silicon.

How to make an IC 5) Buy a factory 6) Keep it clean because particles of dust can damage your circuits

How to make an IC 7) Watch the money roll in.  Makes about $5 billion is gross revenue per year Makes about $38 billion in gross revenue per year

Can I design a chip now? Everything you learned can be implemented on an IC today. Why don’t we teach IC… $1 million dollar cost to make new masks, which is a course material fee of $50,000… and then the whole factory thing…

Simulations Modern day tests are done via simulations. Programs like SPICE, etc. are used. Prototypes are expensive to build and companies would rather have some way of verifying somewhat if it works before investing heavily in prototypes.

To Learn More EE40 or EE100 is a good place to start Join IEEE and build more circuits in our lab.

Course Evaluations Anonymous Will not affect your grade Used to improve the course for following semesters Very Important

Finishing Circuit If you can’t finish your circuit after today, you can leave it with us in the lab and come back to work on it.