Sacrificial material facilitating protection of a substrate in a qubit device

US12048254B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Vivekananda P. Adiga · Ossining, US
• Martin O. Sandberg · Ossining, US
• Jeng-Bang Yau · Yorktown Heights, US
• David L. Rath · Stormville, US
• John Bruley · Poughkeepsie, US
• Cihan Kurter · White Plains, US
• Kenneth P. Rodbell · Sandy Hook, US
• Hongwen Yan · Somers, US

Key dates

• Filing date: Oct 15, 2020
• Grant date: Jul 23, 2024
• Expiry date: Oct 15, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N60/85

Abstract

Devices, systems, methods, and/or computer-implemented methods that can facilitate protection of a substrate in a qubit device using sacrificial material are provided. According to an embodiment, a device can comprise a superconducting lead provided on a pillar of a sacrificial material provided on a substrate. The device can further comprise a collapsed superconducting junction provided on the substrate and coupled to the superconducting lead.