Patent ID: 11941485
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for producing a quantum device, comprising:
providing a substrate having a front face and carrying a transistor pattern on the front face thereof, said transistor pattern comprising, in a stack:
a gate dielectric on the front face of the substrate, and
a gate on the gate dielectric, said gate having a top and sidewalls,

forming a protective layer at the front face of the substrate, said protective layer being configured to prevent diffusion of at least one metal species in the substrate,
forming a metal layer based on at least one metal species at least on the sidewalls of the gate, and
forming a superconducting region in the gate by lateral diffusion of the at least one metal species from the sidewalls of said gate.