Cell modeling in the design of an integrated circu

专利名称：Cell modeling in the design of an integrated

circuit

发明人：Attila Kovacs-Birkas申请号：US09878497申请日：20010611

公开号：US20020199155A1公开日：20021226

专利附图：

摘要：The invention relates to a method for modeling an input/output cell located onthe perimeter of an integrated circuit. A method is taught to model an the integratedcircuit when sufficient area is not available on the perimeter of the integrated circuit. The

input/output cell can be modeled in two locations; one location on the perimeter of thecell and a second location in the interior area, or core, of the integrated circuit. Themodel uses a cover to prevent the area of the core of the integrated circuit from beingused for other purposes. When the input/output cell is divided into a main cell and morethan one pre-cell, the model uses a cover for each pre-cell. The model adjusts the timingof the signals to compensate for the input/output cell being divided into two areas. In anembodiment a software tool performs the functions of the model.

申请人：KOVACS-BIRKAS ATTILA

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