STMicroelectronics NV is a multinational corporation and technology company of French-Italian origin. Incorporated in the Netherlands, its headquarters are in Plan-les-Ouates, Switzerland and it is listed on the New York Stock Exchange, the Euronext Paris and the Borsa Italiana in Milan. ST is the largest European semiconductor contract manufacturing and design company. The company resulted from the merger of two government-owned semiconductor companies in 1987: Thomson Semiconducteurs of France and SGS Microelettronica of Italy. Wikipedia