Layout Design & Verification Of Coprocessor

As a component of high speed float-point calculator, coprocessor is very important to the improvement of the speed and precision of CPU. Our task is to design a coprocessor that is compatible with Intel M80C287 and satisfactory to the military applications.In this article, I introduced a layout design flow of coprocessor that is compatible with the Intel M80C287 according to the full-custom IC backend design methodology. The design flow includes the construction of basic cell libraries, placing & routing, layout verification and post-layout simulation, etc. Moreover, the layout design of basic cells and functional modules, the measures of circuit protection and methods to reduce the parasitic effect are also been discussed.In this article, I suggested a new design method of regular logic cells and the micro-instruction ROM basing on the CADENCE environment, also I put forward a novel post-layout simulation flow base on the EDA tool-- Powermill.