VAT is the global technology leader and supplier of high-end vacuum valves. VAT vacuum valves are mission-critical components in the semiconductor industry, in research and science as well as in advanced manufacturing processes of innovative products such as portable devices, flat screen displays or solar panels. We develop our products in close cooperation with the leading equipment suppliers worldwide. With manufacturing sites in Haag (Switzerland) and Penang (Malaysia), subsidiaries in the USA, Asia and Europe we are where our clients are. Fifty years of experience in the vacuum industry and over 1,700 highly-qualified employees guarantee that clients benefit from outstanding products and related value-added service.