Silicon MOSFETs from American fabless chipmaker iDEAL Semiconductor are now in production at Polar Semiconductor’s 200 mm manufacturing facility in Minnesota.
The MOSFETS, called SuperQ, use an asymmetrical RESURF structure that reduces conduction and switching losses with up to 2.7 times lower resistance compared to other silicon devices. This architecture also cuts switching losses by up to 2.1 times versus competing devices, Polar said.
The SuperQ devices function up to 175° C junction temperature. This allows the MOSFETs to be used for applications like:
- Industrial automation
- Automotive electrification
- AI data centers
- Renewable energy
- Telecom infrastructure
- Consumer power systems
Polar Semiconductor operates a 200 mm fab in Minnesota and claims to be the only majority U.S.-owned foundry that specializes in high-voltage and power semiconductors. The first products from iDEAL, its 150 volt and 200 volt MOSFETs, are already in production at Polar’s fab that is IATF 16949 certified. iDEAL’s 300- and 400 volt devices will follow at a later date.
Polar received $120 million in direct funding from the CHIPS and Science Act in 2024. This would help to double its manufacturing capacity and invest in next-generation technologies like gallium nitride (GaN) and bipolar-CMOS-DMOS (BCD). Simultaneously, the company was sold to two American private equity firms Niobrara Capital and Prysm Capital allowing it to expand even further and become a domestic foundry.
"Polar continues to invest in cutting-edge technologies, and we're excited to collaborate with iDEAL to bring these SuperQ-based devices to market," said Surya Iyer, president and COO of Polar Semiconductor. "Together, we're enabling the next leap in power efficiency and performance while ensuring a secure and scalable manufacturing platform."
