Founded in 1985 and headquartered in Wanjin, Ontario, Canada, ATI Technologies Inc. was acquired by ultra micro semiconductor on July 24, 2006. ATI has more than 3700 employees in North America, Europe and Asia, with a turnover of US $2.2 billion. It is a semiconductor company specializing in the design and sale of display cards, graphics processors, chipsets, set-top boxes, digital TVs, video game machines and portable devices for personal computers.