42 Product research, custom design and testing for new product development in the field of semiconductors; product research, custom design and testing for new product development in the field of semiconductor cell libraries; product research, custom design and testing for new product development in the field of semiconductor devices; product research, custom design and testing for new product development in the field of semiconductor memories; product research, custom design and testing for new product development in the field of semiconductor memory units; product research, custom design and testing for new product development in the field of computer chips, multiprocessor chips, semiconductor chips, and silicon chips; product research, custom design and testing for new product development in the field of integrated circuits; product research, custom design and testing for new product development in the field of semiconductor wafers, wafers for integrated circuits, and silicon wafers; technology consultation services in the field of semiconductors; technology consultation services in the field of semiconductor cell libraries; technology consultation services in the field of semiconductor devices; technology consultation services in the field of semiconductor memories; technology consultation services in the field of semiconductor memory units; technology consultation services in the field of computer chips, multiprocessor chips, semiconductor chips, and silicon chips; technology consultation services in the field of integrated circuits; technology consultation services in the field of semiconductor wafers, wafers for integrated circuits, and silicon wafers