Brooks Automation supplies a steady stream of production tools and factory automation products for the semiconductor industry. It makes tool automation products, such as vacuum robots and cluster assemblies used by semiconductor manufacturers. Brooks' wafer handling systems include vacuum cassette elevator loadlocks, transfer robots, and thermal conditioning modules and aligners. It also makes vacuum equipment for makers of flat-panel displays and data storage devices. Brooks serves top customers, such as Applied Materials and Lam Research, through three segments: Critical Solutions, Systems Solutions, and Global Customer Operations. The company realizes about 53% of its sales from customers in North America.