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Critical node· Silicon · Critical anchor
Soitec, Bernin
Bernin, France45.25°N 5.87°E
computed criticality45/100
reading
World leader in silicon-on-insulator substrates (SOI, FD-SOI, RF-SOI, POI), a technology it invented and for which it remains by far the main supplier. 300 mm fabs in Bernin and Singapore.
2025Fault line
A near-unique position in the SOI substrate chain, making it a hard-to-substitute chokepoint for many RF and automotive customers. Its upstream dependence on polished silicon wafers remains complete.
Actors
Soitec
STMicroelectronics
GlobalFoundries
Shin-Etsu
Depends on 2
Siltronic, BurghausenSilicon · Link↗Air Liquide, Electronics businessChemicals & Materials · Critical anchor↗Feeds 2
STMicroelectronics, Crolles siteSilicon↗Quobly (ex-Siquance), GrenobleQuantum & Cryogenics↗Sources