Computer-aided design 22 Semiconductors 14 Bipolar transistors 8 Metal oxide semiconductors 8 Linear integrated circuits 6 Equipment and supplies 5 Microwave circuits 5 Microwave integrated circuits 5 Wireless communication systems 5 Design and construction 4 Radio frequency integrated circuits 3 Computer simulation 2 Linear integrated circuits -- Computer-aided design 2 Optoelectronics 2 Three-dimensional imaging 2 Design 1 Microwave devices 1 Radio frequency 1