The Crolles site hosts a and a fab and was originally built as a common R&D center for submicrometre technologies as part of the 1990 "Grenoble 92" partnership between SGS-Thomson and CNET, the R&D center of French telecom company France Telecom. The fab, known as Crolles 1, is the company's first and was built as part of a 1991 partnership between SGS-Thomson and Philips to develop new manufacturing technologies. Crolles 1 was opened on September 9, 1993 by Gérard Longuet, French minister for industry, and Alain Carignon, mayor of Grenoble.