Quantum device with low surface losses
US11621387B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Aug 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N69/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Circuits and methods of operation that can facilitate reducing surface losses for quantum devices are provided. In one example, a quantum device can comprise a dielectric layer, a first electrode, and a second electrode. The dielectric layer can comprise a recess formed in a surface of the dielectric layer that reduces a thickness of the dielectric layer from a first thickness external to a footprint of the recess to a second thickness within the footprint of the recess. The second thickness can be less than the first thickness. The first electrode can be positioned within the footprint of the recess. The second electrode can be electrically isolated from the first electrode by the dielectric layer. The first and second electrodes can be positioned on opposing surfaces of the dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.