A*STAR Quantum Innovation Centre spin-out
Building the cryo-control standard for quantum computing.
Semiconductor-compatible.
Built in Singapore.
GQIG / QUANTUM DEALFLOW LIVE / IMEC, LEUVEN
Qifrost received the Quantum Innovation Excellence Award at GQIG’s Quantum Dealflow Live in Leuven. Control electronics at 4 K reduce wiring, thermal load and system complexity as qubit counts scale.
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Q2B COPENHAGEN / STARTUP PITCH COMPETITION
Qifrost won the Q2B Startup Pitch Competition in Copenhagen, run by the BioInnovation Institute and hosted by QC Ware. The jury spanned 55 North, Novo Holdings, Playground Global, QuNorth, Microsoft and QAI Ventures, with seven finalists from five countries.
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NAMIC SINGAPORE / STARTUP INNOVATION FORUM 2026
Qifrost won the pitching competition at NAMIC Singapore’s Startup Innovation Forum 2026, earning a fast track to the SLINGSHOT 2026 Top 50 Finals at SWITCH this October.
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EVENTS / AMSTERDAM
Eric W. Cao represented Singapore at Quantum Meets 2026 in Amsterdam, discussing the research, partnerships and commercial ecosystem needed to build a quantum industry.
Read on LinkedInPERSPECTIVE
Qifrost shares its perspective on Singapore’s role in quantum hardware manufacturing and the transition from research to commercial delivery.
Read on LinkedInQELVIN | CRYOGENIC CONTROL
Control moves closer to the qubits.
Conceptual package illustration
Qifrost complements qubit developers by owning the full design-to-packaging stack for cryo-control in a key semiconductor node of Southeast Asia. Design, cryogenic test, characterization and packaging in-house. Device fab outsourced at leading foundries.
QELVINTM is the control layer that breaks through the quantum wiring wall. It runs at 4K inside the cryostat, adjacent to the qubits: one chip quietly conducting thousands of them, so cabling scales as log(n) and the gold-wire tangle disappears. Validated silicon, already running in the cold.
A full cryo-control stack: designed, taped out, packaged and validated in-house.
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Design, cryogenic test, characterisation and packaging in-house. Only the wafer fab is outsourced.
Peer-reviewed work from our team and collaborators across cryogenic CMOS control and superconducting advanced packaging, published with IEEE.
CONTACT
Whether you're a potential customer, collaborator, investor or just curious, we'd love to hear from you.
Today's control architecture hits two physical walls. Both get worse with every qubit you add, and 1M+ qubit targets demand on-chip classical control.
QELVIN runs at 4 K inside the cryostat, adjacent to the qubits, so cabling scales as log(n).
At 1,000 qubits, conventional 1:1 wiring hits the wall.
Real cryocoolers run at only a fraction of ideal efficiency, so their cooling overhead exceeds the ideal thermodynamic (Carnot) limit. Every watt they draw at room temperature has to be wired in, powered, and dissipated somewhere, which is why the power budget for electronics living at 4K is so tight, and why every milliwatt of on-chip dissipation counts.
Standard CMOS models break at 4K, so silicon must be re-characterised and re-designed for the cold.
QELVIN, Qifrost's cryo-CMOS control layer, replaces much of the room-temperature rack today. It interfaces with a TSV interposer, on Qifrost's roadmap, and a customer-provided qubit array bonded beneath, while on-chip sequencing distributes each control resource across many qubits.
Control starts digital, at the computer. Today, room-temperature electronics turn it analog at the rack, and a thick bundle of lines runs the full 300 K-to-~mK span into the cryostat. Qifrost’s QELVIN converts to analog right at 4 K, next to the qubits, so only a handful of short lines remain.
More qubits means more analog lines running the full cryostat span, from the room-temperature rack down to the qubits.
QELVIN converts to analog right next to the qubits, at 4 K, collapsing that bundle down to a handful of short lines.
Control electronics run at 300 K, about 300× hotter than the qubits at ~mK. Qifrost moves the digital-to-analog boundary to 4 K, adjacent to the qubit layer, cutting the number of lines that cross the full cryostat.
Conventional control wiring grows linearly and hits a wall. On-chip sequencing keeps it flat.
QELVIN™ | CRYOGENIC CONTROL
Explore the control platform, validated silicon and technical specifications.
Electronic components for qubit control and readout that operate in the cryogenic regime, adjacent to the qubit layer. One control resource addresses many qubits through on-chip sequencing, so wiring scales as log(n) rather than 1:1 with qubit count.
DATASHEET
Tell us your platform and qubit count, and we'll share specs and integration detail.
The cryogenic layer Qifrost owns grows with every generation, and control keeps moving closer to the qubits.
The cryo-interposer sits directly between the QELVIN control chip and the qubit layer, both cooled to the same 4 K stage. Because it's a through-silicon-via (TSV), CMOS-compatible layer rather than off-chip wiring, it lets thousands of short, dense electrical connections replace long cable runs, cutting the parasitic capacitance and latency that degrade qubit control fidelity, while remaining manufacturable on standard semiconductor lines rather than built by hand.
Conceptually a generic RF transceiver, with qubits instead of the antenna. The blocks between the room-temperature interface and the qubit array sit at 4 K: that's the layer Qifrost builds.
01 | ORIGIN
Spun out of the A*STAR Quantum Innovation Centre, with direct access to Singapore's mature semiconductor supply chain: fabs, packaging and talent. Cryo silicon built to be manufactured, not just demonstrated.
02 | TECHNOLOGY
Cryogenic CMOS brings conversion and sequencing into the cold stage, close to the quantum processor. Local multiplexing concentrates control across large qubit arrays, sharply reducing the cable count. CMOS-compatible packaging and validated silicon replace the cable spaghetti.
Company news, milestones and perspectives.
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Diego Van HemelryckDiego Van Hemelryck launches The Cryo Dweller, a recurring roundup of research papers shaping cryogenic quantum hardware: one paper per card, from 6 K down to 70 mK, with links to the source papers.
Open the PDF ↗The research and breakthroughs building the cold layer: a curated read on the science across the cryo-CMOS ecosystem. Twice a month.
Team
The team that designed, taped out, and validated the cryo-CMOS: deep cryo-electronics expertise paired with INSEAD commercial leadership.
Origin: Spin-out from the A*STAR Quantum Innovation Centre, with extensive government lab resources and established foundational research.
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CAREERS / QIFROST
Interested in talking to us? Send an email to leo@qifrost.com.
CONTACT / SINGAPORE
Talk to us about cryogenic control, technical collaboration, partnerships or investment.
