Teradyne, Inc. specializes in the development, manufacturing and marketing of automatic test equipment. Net sales break down by family of products as follows: - semiconductor tester (68 - system testing solutions (12.6%): testers of integrated circuit, digital network cards, electronic modules, military and aerospace instruments, car diagnostic systems, etc.; - industrial automation solutions (14%); - wireless test solutions (5.4%): for mobiles devices and equipment manufacturers (smart phones, tablets, laptops, etc.). Net sales break down by source of income into sales of products (78.3%) and services (21.7%; consulting, development, training and technical support services). Net sales are distributed geographically as follows: the United States (16.2%), Korea (14.7%), Taiwan (14.4%), China (11.8%), Japan (10.5%), Europe (10.2%), Philippines (7.1%), Singapore (4.4%), Thailand (3.4%), Malaysia (3.3%) and other (4%).