Automating the Layout of MMIC Circuits Using Artificial Intelligence Techniques

A novel Knowledge Based System for MMIC layout is presented, GALA (Gallium Arsenide Layout Assistant), which uses a recognized artificial intelligence technique called the blackboard architecture to place and route component cells[1][2]. The system has the overall aim of reducing the amount of GaAs real estate usage thereby Increasing yield and reducing cost. It is the third stage in a project developed at The Queen's University of Belfast Swhich aims to fully automate the design and layout of a MMIC [3][4][5][6], and is the final component within the MADE framework (MMIC Automated Design Environment (see Figure 1).