Cadence Design Systems, Inc., is an American multinational technology and computational software company. Headquartered in San Jose, California, Cadence was formed in 1988 through the merger of SDA Systems and ECAD. Initially specialized in electronic design automation software for the semiconductor industry, currently the company makes software and hardware for designing products such as integrated circuits, systems on chips, printed circuit boards, and pharmaceutical drugs, also licensing intellectual property for the electronics, aerospace, defense and automotive industries, among others. Wikipedia