Editing STMicroelectronics (section)

===Closed sites===
* [[Rennes]], France hosted a 6-inch (150&nbsp;mm) fab and was closed in 2004
* [[Rancho Bernardo]], [[California]], US a 4-inch (100&nbsp;mm) fab created by Nortel and purchased by SGS-Thomson in 1994, after which it was converted into a 6-inch (150&nbsp;mm) fab in 1996.
* SGS's first presence in the US was a sales office based in [[Phoenix, Arizona|Phoenix]] in the early 1980s. Later, under SGS-Thomson, an 8-inch (200&nbsp;mm) fab was completed in Phoenix in 1995. The company's second 8" [[Fab (semiconductors)|fab]] after Crolles 1, the site was first dedicated to producing microprocessors for [[Cyrix]]. On 10 July 2007, ST said that it would close this site, and in July 2010 the shell of the Phoenix PF1 FAB was bought by Western Digital Corporation.<ref name="st.com"/>
* The [[Carrollton, Texas|Carrollton]], [[Texas]], US site was built in 1969 by [[Mostek]], an American company founded by former employees of [[Texas Instruments]]. In 1979, Mostek was acquired by [[United Technologies]], which sold it to Thomson Semiconducteurs in 1985. Initially equipped with a 4-inch (100&nbsp;mm) fab, it was converted into a 6-inch (150&nbsp;mm) [[Fab (semiconductors)|fab]] in 1988. The activities of [[INMOS]] in the US were transferred to Carrollton in 1989 following its acquisition by SGS Thomson. It was closed in 2010.<ref name="st.com"/>
* [[Bristol]], [[UK]] This R&D site housed [[Inmos]], which in 1978 began development of the [[Transputer]] microprocessor. The site was acquired with Inmos in 1989, and was primarily involved with the design of home video and entertainment products (e.g. [[Set-top box|Set-Top Box]]), [[GPS]] chips, and accompanying software. At its peak the site employed more than 250 employees. The site closed in 2014.<ref>[https://www.bbc.co.uk/news/uk-england-bristol-23225566 STMicroelectronics to close Aztec West Business Park site] {{webarchive |url=https://web.archive.org/web/20130713005433/http://www.bbc.co.uk/news/uk-england-bristol-23225566 |date=July 13, 2013 }} BBC News</ref>