In the present, electronic evolution takes
forward quickly because of new found technology innovations
in electronic field and semiconductor device including integrated
circuit inventions. In general semiconductor device implementation
can be divided into two step such as semiconductor device design
and fabrication. The layout design is the most significant,
which is the designation of not only circuit configuration but
also the photolithographic mask layout for fabrication process.
Consequently, computer software is brought to enhance the performance
of the design step. This thesis presents CAD software development
prototype for small scale integrated circuits design on microcomputer.
The software can allow users to design integrated circuits by
layout level, examine cross-section image from layout, check
layout design rule, simulate electric characteristics, translate
layout to CIF (Caltech Intermediate Form) language sources and
transfer layout through the Internet. In the software design
phase, Object-oriented programming is applied to gain the benefit
of the convenient software modification and improvement. For
example, a design rule adding, a new implementing class can
inherited properties from designed classes and is put into the
software source without any effect to the software original
functions. Apparently, the design and development of the software
are enhanced.
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