Vacuum arc source
US11610760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2019 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Mar 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/332
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum arc source for arc evaporation of boride includes: a cathode made of at least 90 at-% of boride, in particular made of more than 98 at-% of boride; an anode, which is preferably in the shape of a disk; a body made of a material which is less preferred by arc discharge compared to the cathode, the body surrounding the cathode in such a way that during operation of the vacuum arc source, movement of an arc on an arc surface of the cathode is limited by the body. At least 90 at-% of the material of the anode is of the same chemical composition as the cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.