Mixed Signal Circuits : Overview of a Flexible Design Methodology using BICMOS Processes

This paper describes a new design methodology for mixed signal circuits using BICMOS processes. An overview of BICMOS process requirements for mixed applications is presented as well as a new 0.7 um CMOS and 13 Ghz / NPN process. Some innovative library concepts, which offer a lot of flexibility, are shown in the third chapter. A mixture of classical library concepts and CAD tools are extensively used. Then, an overview of a front-end and a back-end design tool offering most of the functionality needed to develop mixed signal circuits is presented. Finally, some considerations on mixed signal circuit testing are discussed, and new tools introduced.