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Design and Implementation of VLSI Systems (EN0160) lecture03 Sherief Reda Division of Engineering, Brown University Spring 2008 [sources: Weste/Addison Wesley – Rabaey Pearson] Recap nMOS Source Gate n+ pMOS n+ p Source Drain bulk Si Polysilicon Polysilicon SiO2 SiO2 Gate p+ Drain p+ n bulk Si 3-input NANDs Series-Parallel Combinations What are the transistor schematics of the NOR gate? And-Or-Inverter (AOI) gate Transmission gate Tri-state inverter Multiplexer (MUX) Latch design Flip-flop (edge triggered) design Summary • Introduction to VLSI systems and the semiconductor industry • Basic overview of pn junctions and MOS transistors • Designing digital logic gates using transistors • HW1 is out and the due date is Wednesday February 6
