STMicroelectronics

Grenoble is one of the company's most important R&D centres, employing around 4,000 staff. The Polygone site employs 2,200 staff and is one of the historical bases of the company (ex SGS). All the historical wafer fab lines are now closed but the site hosts the headquarters of many divisions (marketing, design, industrialization) and an important R&D center, focused on silicon and software design and fab process development.

The Crolles site hosts a 200 mm (8 in) and a 300 mm (12 in) 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 200 mm (8 in) 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.

The 300 mm (12 in) fab was inaugurated by French president Jacques Chirac, on February 27, 2003. It includes a R&D center which focuses on developing new nanometric technology processes for 90 nm to 32 nm scale using 300 mm (12 in) wafers and it was developed for The Crolles 2 Alliance. This alliance of STMicroelectronics, TSMC, NXP Semiconductors (formerly Philips semiconductor) and Freescale (formerly Motorola semiconductor) partnered in 2002 to develop the facility and to work together on process development. The technologies developed at the facility were also used by global semiconductor foundry TSMC of Taiwan, allowing TSMC to build the products developed in Crolles on behalf of the Alliance partners who required such foundry capacity. A new fab is under construction since 2015.

Employing around 3,000 staff, Rousset hosts several division headquarters including smartcards, microcontrollers, and EEPROM as well as several R&D centers. Rousset also hosts an 8-inch (200 mm) fab, which was opened on May 15, 2000 by French prime minister Lionel Jospin.

The site opened in 1979 as a 100 mm (3.9 in) fab operated by Eurotechnique, a joint venture between Saint-Gobain of France and National Semiconductor of the US. Rousset was sold to Thomson-CSF in 1982 as part of the French government's 1981–82 nationalization of several industries. As part of the nationalisation, a former Thomson plant in the center of Aix-en-Provence operating since the 1960s was closed and staff were transferred to the new Rousset site. The original 100 mm (4 in) fab was upgraded into 130 mm (5 in) and later 150 mm (6 in) fab in 1996. It is now being shut down.

In 1988, a small group of employees from the Thomson Rousset plant (including the director, Marc Lassus) founded a start-up company, Gemalto (formerly known as Gemplus), which became a leader in the smartcard industry.

Employing 1,500 staff, this site hosts a fab and R&D centers.

Employing 6,000 staff, the Milan facilities match Grenoble in importance. Agrate Brianza employs around 4,000 staff and is a historical base of the company (ex SGS). The site has several fab lines (including an 300 mm (12 in) fab) and an R&D center. Castelletto, employs 300 to 400 staff and hosts some divisions and R&D centers.

Update-2012: Numonyx JV (with Intel) is acquired by Micron. As such, R2 Fab (Agrate previous R&D 200mm Fab) is currently a Micron entity

The Catania plant in Sicily employs 5,000 staff and hosts several R&D centers and divisions, focusing on flash memory technologies as well as two fabs. The plant was launched in 1961 by ATES to supply under licensing to RCA of the US and initially using germanium. The site's two major wafer fabs are a 200 mm (8 in) fab, opened in April 1997 by then-Italian Prime Minister Romano Prodi, and a 300 mm (12 in) fab that has never been completed and which was transferred in its current state to "Numonyx" in 2008. A new manufacturing facility for SiliconCarbide (SiC) substrates of 150 mm should open here in 2023.[10]

STmicro eSIM and SIM production facility for embedded form factor eSIM.

As of 2010, ST employed some 1,500 people in Kirkop, making it the largest private sector employer, and the country's leading exporter.[11]

In 1970, SGS created its first assembly back-end plant in Singapore, in the area of Toa Payoh. Then in 1981, SGS decided to build a wafer fab in Singapore. The Singapore technical engineers have been trained in Italy and the fab of Ang Mo Kio started to produce its first wafers in 1984. Converted up to 200 mm (8 in) fab, this is now an important 200 mm (8 in) wafer fab of the group. Ang Mo Kio also hosts some design centers. The site currently employs 6000 staff.

Update-2012: Numonyx JV (with Intel) is acquired by Micron in 2010. As such, AMK8 Fab (200mm HVM Fab) is currently a Micron entity. AMK5 and AMK6 remains to be STM entities. Update-2019: AMK8 has been reacquired by STM from Micron.

Application, design and support. about 110 employees. Divisions: MCD

Founded in 1979 as a radiofrequency products facility, the Bouskoura site now hosts back-end manufacturing activity, which includes chip testing and packaging.

• Geneva, Switzerland: Corporate headquarter which hosts most of the ST top management. It totals some hundred of employees.
• Saint-Genis-Pouilly, France, near Geneva: A few hundred of employees. Headquarters for logistics.
• Paris: Marketing and support.

• Coppell, Texas: US headquarters.
• Singapore: Headquarters for the Asia-Pacific region.
• Tokyo: Headquarters for Japan and Korea operations.
• Shanghai: Headquarters for China operations.[12]

• Malta: In 1981, SGS-Thomson (now STMicroelectronics) built its first assembly plant in Malta. STMicroelectronics is, as of 2008, the largest private employer on the island, employing around 1,800 people.
• Muar, Malaysia: around 4000 employees. This site was built in 1974 by Thomson and is now an assembly plant.
• Shenzhen, Guangdong province, China, near Hong Kong: In 1994, ST and the Shenzhen Electronics Group signed a partnership to construct and jointly operate an assembly plant (ST has majority with 60%). The plant is located in Futian Free Trade Zone and became operational in 1996. It has around 3,300 employees. A new assembly plant is built in Longgang since 2008, and closed up till 2014. The R&D, design, sales and marketing office is located in the Hi-tech industrial park in Nanshan district.
• Calamba City, in the province of Laguna, Philippines,: In 2008, ST acquired this plant from NXP Semiconductors. Initially as part of joint venture with NXP but later acquired the whole share turning it into a full-fledged STMicroelectronics Assembly and Testing plant. Currently it employs 2,000 employees.

• Cairo, Egypt: Hardware and software design center, started in 2020, with 50 employees.
• Rabat, Morocco: A design center that employs 160 people.
• Naples, Italy: A Design center employing 300 people.
• Lecce, Italy: HW & SW Design Center which hosts 20 researchers in the Advanced System Technology group.
• Ang Mo Kio, Singapore: In 1970, SGS created its first assembly back-end plant in Singapore, in the area of Toa Payoh. Then in 1981, SGS decided to build a wafer fab in Singapore. The Singapore technical engineers have been trained in Italy and the fab of Ang Mo Kio started to produce its first wafers in 1984. Converted up to 8 inch (200 mm) fab, this is now an important 8 inch (200 mm) wafer fab of the ST group. Ang Mo Kio also hosts design centers for various groups.
• Greater Noida, India: The Noida site was launched in 1992 to conduct software engineering activities. A silicon design center was inaugurated on February 14, 1995. With 120 employees, it was the largest design center of the company outside Europe at the time. In 2006, the site was shifted to Greater Noida for further expansion. The site hosts mainly design teams. It is now primarily involved with the design of home video products (Set-Top Box, DVD), GPS and Wireless LAN chips, and accompanying software. Worldwide Data center support is also transferred to Greater Noida in 2004. The employee strength in Greater Noida is around 2000. This also includes employees of ST-Ericsson.
• Santa Clara, California, (Silicon Valley), United States: 120 staff in marketing, design and applications.
• La Jolla, California, (San Diego, United States): 80 staff in design and applications.
• Lancaster, Pennsylvania, U.S.: Application, support, and marketing.
• Prague, Czech Republic: 100 to 200 employees. Application, design and support.
• Tunis, Tunisia: 110 employees. Application, design and support.
• Sophia Antipolis, near Nice, France: Design center with a few hundred employees.
• Edinburgh, Scotland: 200 staff focused in the field of imaging and photon detection.
• Ottawa, Ontario, Canada: In 1993, SGS-Thomson purchased the semiconductor activities of Nortel which owned in Ottawa an R&D center and a fab. The fab was closed in 2000, however, a design, R&D centre and sales office is operating in the city.
• Toronto, Ontario, Canada: HW & SW Design Center primarily involved with the design of video processor ICs as part of ST's TVM Division.
• Bangalore, India: HW and SW design center employing more than 250 people (Including the employees of ST Ericsson and Genesis Microchip).
• Zaventem, Belgium: 100 employees. Design & Application Center. Closed in 2013
• Helsinki, Finland: Design Center.
• Turku, Finland: Design Center.
• Oulu, Finland: Design Center.
• Tampere, Finland: Design Center.
• Longmont, Colorado USA: Design Center.
• Graz, Austria: NFC Competence Center.[13]

The Phoenix, Arizona 8 inch (200 mm) fab, the Carrollton, Texas 6 inch (150 mm) fab, and the Ain Sebaa, Morocco fab are beginning rampdown plans, and are destined to close by 2010.[14]

The Casablanca, Morocco site consists of two assembly parts (Bouskoura and Aïn Sebaâ) and totals around 4000 employees. It was opened in the 1960s by Thomson.

The Bristol, United Kingdom site employing well over 300 at its peak (in 2001/2) but was ramped down to approx. 150 employees at close by early 2014.

The Ottawa, Ontario, Canada plant (approx. 450 employees) will close down by 2013 end.[15]

• Rennes, France hosted a 6-inch (150 mm) fab and was closed in 2004
• Rancho Bernardo, California, a 4-inch (100 mm) fab created by Nortel and purchased by SGS-Thomson in 1994, after which it was converted into a 6-inch (150 mm) fab in 1996.
• SGS's first presence in the US was a sales office based in Phoenix in the early 1980s. Later, under SGS-Thomson, an 8-inch (200 mm) fab was completed in Phoenix in 1995. The company's second 8" fab after Crolles 1, the site was first dedicated to producing microprocessors for Cyrix. On July 10, 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.[14]
• The Carrollton, Texas 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 mm) fab, it was converted into a 6-inch (150 mm) fab in 1988. The Colorado Springs activities of British company INMOS were transferred to Carrollton in 1989 following its acquisition by SGS Thomson. Since then the site has been refocused to wafer testing. On July 10, 2007, ST announced it would close this fab, and it was finally closed in 2010.[14]
• Bristol, UK This R&D site housed the British company Inmos, which in 1978 began development of the famous 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), GPS chips, and accompanying software. At its peak the site employed more than 250 employees. The site officially closed on March 31, 2014.[16]

• On August 8, 2007, ST bought Nokia's microchip development team and plans to invest heavily in development of cellular ASIC applications. The purchase included Nokia's ASIC team in Southwood (UK) and the company plans several sites in Finland.[17][18][19]