METHOD FOR DESIGNING STRUCTURED ASICS IN SILICON PROCESSES WITH THREE UNIQUE MASKING STEPS

摘要

A multi-function core base cell includes a set of functional icrocircuits. These microcircuits are used to design a Library of Logic Function Macros. The functional macros consisting of one or more microcircuits have a fixed and complete physical layout similar to a conventional standard cell library macro set. In addition to a core functional macro set, primary input/output buffers (710) and commonly used single and dual port memory blocks (720) are also defined in the library. The library includes all the ASIC synthesis, simulation, and physical design rules.