A layout description system using C language

Abstract

With the rapid progress of VLSI microfabrication technology, the functional cell library must be updated frequently. Then it is important to develop a functional cell generation technique. For this purpose, the study of technique is considered interesting, which represents the layout pattern efficiently and independently of the process technology, using a language. This paper discusses the layout language based on the general‐purpose C language and the processing system. The layout pattern is described using C language and newly defined functions for layout description. Then the layout data are generated automatically from the description. First, the assumed layout pattern structure is considered. Then the proposed layout description technique, as well as the realization of the processing system, are discussed. Finally, the processing system actually is constructed and it is demonstrated that the layout pattern is generated automatically from the layout description.