Antares Advanced Test Technologies of Vancouver, Wash., a supplier of integrated semiconductor test cell consumables, has named Keith Callahan, a veteran engineer, as the company's vice president of sales. Callahan most recently served as a regional account manager and played a key role in managing the company's relationships with chip makers as well as its overall growth in the test and burn-in market. In his new role, Callahan will oversee global sales and applications engineering teams in Phoenix and Gilbert, Ariz., in Fremont, Calif., and in China, Japan, Taiwan, Korea, Singapore, Malaysia, the Philippines, Europe and Israel.