42 Design, engineering, research, and development in the field of semiconductor intellectual property (IP) cores, semiconductors, integrated circuits, and microelectronics; technical consulting in the fields of design, engineering, research, and development of semiconductor intellectual property (IP) cores, semiconductors, integrated circuits, and microelectronics; technical support services, namely, troubleshooting in the nature of diagnosing computer hardware and software problems in the fields of semiconductor intellectual property (IP) cores, semiconductors, integrated circuits, and microelectronics