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layout of simple circuits using l-edit


For this lab, we used L-edit, a simple program that helps us lay out silicon and metal layers, to draw basic transistors. We first laid out an NMOS transistor and then a PMOS transistor. Then combining these (CMOS) we constructed an inverter gate, a nand gate and a nor gate. We then extracted out layout and simulated our gates in SPICEĀ®. Finally, we created a 4-input nand gate in two ways; first using CMOS to build one from ground up, and second by combining the NAND, NOR and the inverter gates.

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  1. Tomoko

    hello sir, I got 422 rank in pgecet-2012.so can you give me the top cogelles in which i can get seat in VLSI.please sir send me as soon as possible.






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