CMU MEMS Laboratory Publication Abstract


in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, pp. 825-839, Vol. 19, No. 8, September 2000.
Efficient Handling of Operating Range and Manufacturing Line Variations in Analog Cell Synthesis
T. Mukherjee, R. Carley and R. A. Rutenbar
We describe a synthesis system that takes operating range constraints and inter and intracircuit parametric manufacturing variations into account while designing a sized and biased analog circuit. Previous approaches to computer-aided design for analog circuit synthesis have concentrated on nominal analog circuit design, and subsequent optimization of these circuits for statistical fluctuations and operating point ranges. Our approach simultaneously synthesizes and optimizes for operating and manufacturing variations by mapping the circuit design problem into an Infinite Programming problem and solving it using an annealing within annealing formulation. We present circuits designed by this integrated synthesis system, and show that they indeed meet their operating range and parametric manufacturing constraints. And finally, we show that our consideration of variations during the initial optimization-based circuit synthesis leads to better starting points for post-synthesis yield optimization than a classical nominal synthesis approach.
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