About
SemiQon is a VTT spinout developing silicon semiconductor quantum processors based on quantum dot technology. Its processors are scalable, easier to manufacture, and able to function at warmer temperatures. In November 2024, SemiQon announced the world's first cryogenic CMOS transistor fully optimised for ultra-low temperatures of 1K, achieving a 100-fold power reduction compared with room-temperature transistors and 1000 times lower heat dissipation. In June 2025 it demonstrated large-scale characterisation of quantum dot qubits using cryo-CMOS transistors. In October 2025, SemiQon won first prize in the EARTO Innovation Award for its silicon quantum processor technology, completed its first production run, and began shipping 4-qubit quantum dot array chips to research partners worldwide. The company raised €17.5 million in total funding in 2025, consisting of a €2.5M grant and €15M in equity from the European Innovation Council. It partnered with Conductor Quantum to accelerate silicon-based quantum computing and works with VTT Finland, SDT in South Korea, and CMC Microsystems. SemiQon also participates in the EU SPINS project, which targets millions of stable semiconductor qubits. Update 2026-04-16: SemiQon announced a breakthrough in cryogenic electronics with the release of a cryogenic CMOS transistor. Source: https://quantumzeitgeist.com/semiqon-cryogenic-cmos-transistor-quantum-computing/
Quantum Specifications
| Qubit Technology | Silicon spin qubits on FDSOI Si-28 substrate with cryo-CMOS control; targets ~1K operation (VTT spinout) |
| Error Correction | Research-stage; no logical qubit |
| Quantum Focus | hardware |
Key People
Backed By
Frequently Asked Questions
Related News
YC-Backed Conductor Quantum Partners With Finland’s SemiQon to Push Silicon Quantum Computing Forward - The Quantum Insider
SemiQon Explores Space Applications for Cryo-CMOS Tech
SemiQon Adapting Quantum Technology for Deployment in Space