Tubular target having a protective device
US10978279B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J37/3497
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tubular target for cathode atomization does not have a backing tube and it is made of molybdenum or a molybdenum alloy. The target has an inner surface which is in contact at least in certain regions with a cooling medium, wherein at least one region of the inner surface is separated from the cooling medium by at least one protective device. By way of example, the protective device may be in the form of a polymer layer. The tubular target exhibits outstanding long-term stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.