Digital integrated circuits 52 Design and construction 23 Integrated circuits 9 Computer-aided design 7 Linear integrated circuits 7 Logic circuits 7 Logic design 7 Data processing 6 Metal oxide semiconductors, Complementary 6 Testing 6 Electronic digital computers 4 Low voltage integrated circuits 4 Signal processing 4 Very large scale integration 4 Mathematics 3 VHDL (Computer hardware description language) 3 Verification 3 Analog-to-digital converters 2 Circuits 2 Digital techniques 2 Electronic circuits 2 Formal methods (Computer science) 2 Telecommunication 2 Automatic checkout equipment 1 Computer algorithms 1 Computer architecture 1 Designand construction 1 Digital electronics 1 Electromagnetism 1 Electronic circuit design 1