Siemens Digital Industries Software is working with  sureCore and Semiwise to develop  cryogenic CMOS circuits capable of operating at temperatures near absolute zero required for quantum computing systems..

The key to unlocking the potential of quantum computing  lies in the availability of control electronics capable of operating at cryogenic temperatures.

“The critical storage element and the bit cell must essentially be treated as an analogue circuit that is highly sensitive to process variability and mismatch,” says sureCore CEO Paul Wells

Using mixed-signal IC design technology from Siemens, Semiwise has developed cryogenic CMOS circuit designs featuring cryogenic SPICE models as well as SPICE simulator technology that can perform accurate analyses at cryogenic temperatures.

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Semiwise is providing this IP, developed using Siemens’ Analog FastSPICE (AFS), to sureCore for the development of sureCore’s line of CryoIP, which aims to enable the design of CryoCMOS control chips.

In the development of its CryoIP product line, sureCore also used Siemens’s Analog FastSPICE platform and Siemens’ Solido Design Environment software, empowering sureCore to construct analogue circuits, standard cell libraries, and memory designs including SRAM, register files, and ROM, using Semiwise’s cryogenic transistor models.

Further, Siemens’ Analog FastSPICE software showcased the handling of foundry device models at cryogenic conditions, helping deliver analogue, mixed-signal, and digital circuit design and verification functionality without convergence issues.

“For the first time, through cryogenic transistor measurements and Technology Computer-Aided Design (TCAD) analyses conducted with Siemens’ EDA technologies, we have developed process design kit (PDK-quality compact transistor models, including corners and mismatch, enabling the production-worthy design of cryogenic CMOS circuits,” says Professor Asen Asenov, CEO of Semiwise and director of sureCore.

sureCore’s first CryoIP tapeout will be on  GlobalFoundries’ 22FDX PDK.