Josephson device formed over a recess step with protective layer
US5313074A · kind A · utility
10Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1991 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Nov 27, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/874
Abstract
In a Josephson device which can be employed as a sensor including superconductor for measuring an extremely weak magnetic field, a Josephson junction consisting of superconducting material is formed, and a covering layer consisting of ordinary conducting metal or semiconductor is formed on the Josephson junction. This enables the Josephson junction to be isolated from the oxidized atmosphere. Further, the covering layer is not to present any deterioration such as cracks even upon being subjected to a thermal hysteresis from very low temperature to ordinary temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.