Quantware and SEEQC Partner to Integrate the Cryogenic Digital Control Logic onto the QPU Chip

Quantware, based in Delft, Netherlands, develops superconducting based qubit chips. Their latest product, called Soprano, is available now and can be delivered to customers either as a die or a fully packaged chip with a 30-day lead-time. SEEQC is a New York based company formed in 2019 as a spinoff of Hypres. They operate a state-of-the-art multi-layer superconducting chip fabrication facility and provide foundry services for superconducting devices. They possess a digital logic technology called SFQ (Single Flux Quantum) that can operate at the same ultra-cold cryogenic temperatures as the qubits. By combining the two companies' technology together on the same chip they can solve the wiring problem inherent in today's superconducting based systems. Instead of routing thousands of cables from the room temperature control electronics through the dilution refrigerator down to quantum processing unit (QPU), they would only have to route a handful of control wires to the integrated QPU that would carry the addresses, commands, and readout data. The actual signal generation would be performed on the integrated QPU chip at millikelvin temperatures and then the signals would be routed via internal chip interconnects to the qubits. This approach could potentially solve the wiring problem which is one of the larger challenges today with scaling superconducting qubits. You can read more about this partnership between Quantware and SEEQC in a news release posted on the Quantware website here.

December 14, 2021