Rudolph Technologies, Inc. is an American semiconductor company. Formed in 1940 and traded as NYSE: RTEC on the New York Stock Exchange, it is a provider of process characterization equipment and software for semiconductor, data storage, flat panel display and micro-electro-mechanical system (MEMS) manufacturing industries. The company’s product offering includes automated defect inspection and metrology systems, probe card test and analysis systems, and lithography step-and-repeat systems. In addition, Rudolph provides a broad range of software products designed to improve yield, control processes and reduce manufacturing costs.