Producer
SiCrystal GmbH (Rohm Semiconductor subsidiary)
SiCrystal GmbH (Nuremberg, Bavaria Germany; 100% subsidiary of Rohm Co., Ltd., Kyoto Japan since 2009 acquisition) is Europe's largest and the world's #3 SiC substrate manufacturer; approximately 10-12% global market share. SiCrystal produces 4-inch and 6-inch SiC substrates (n-type and semi-insulating) from its Nuremberg facility for Rohm's internal power device supply chain and external customers. Rohm Semiconductor's acquisition of SiCrystal in 2009 gave a major Japanese power semiconductor company a European SiC substrate anchor — enabling Rohm to be one of the few vertically integrated SiC companies (substrate → epitaxy → device). SiCrystal's Nuremberg location makes it the primary European-controlled SiC substrate source, relevant for European automotive supply chain security given EU dependency on US (Wolfspeed) and Japanese (Rohm) SiC sources.
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SiC Substrates (n-type)
70%SiC Substrates (semi-insulating)
30%
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Did you know2024
Rohm Co., Ltd. (Kyoto; TYO: 6963) is globally recognized as a commodity electronic components company — resistors, ceramic capacitors, LEDs, and basic analog ICs that are in the BOM (bill of materials) of virtually every electronic device at prices measured in fractions of a cent. This commodity components identity obscures what Rohm's vertical SiC integration means: through SiCrystal (Nuremberg), Rohm owns one of the world's three significant SiC substrate production bases; through its Chikugo, Fukuoka plant, Rohm makes SiC power MOSFETs and Schottky barrier diodes that are designed into EV inverters, onboard chargers, and industrial motor drives. The same Kyoto company whose 0402 resistors are too small to see with the naked eye also makes the 650V/100A SiC power switch controlling the main inverter in a next-generation EV. The commodity resistor business and the advanced power semiconductor business exist in the same Rohm corporate balance sheet, connected by a Japanese electronics component company's 50-year manufacturing precision tradition.
Rohm Co., Ltd. ↗Origin2023
SiCrystal GmbH was founded in 1997 in Nuremberg — the historic center of Germany's precision instrument and electronics manufacturing — as a dedicated SiC substrate startup during a period when SiC was primarily a laboratory material. The founders recognized that sublimation crystal growth of SiC (using PVT — physical vapor transport at ~2400°C) was a uniquely challenging crystal growth problem that would benefit from specialist focus rather than conglomerate management. Rohm Semiconductor (Kyoto) acquired SiCrystal in 2009 for a reported €50M — extremely early for SiC investment, when EV adoption was below 0.1% of global car sales. Rohm's 2009 acquisition of SiCrystal represents one of the earliest documented strategic bets by a Japanese semiconductor company on SiC for automotive electrification — predating the mass EV market by 10+ years.
SiCrystal GmbH ↗