Lithium containing composite metallic sputtering targets
US9765426B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2013 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jun 3, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J37/3429
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to sputter targets for electrochemical device layer deposition comprising a lithium-containing target material with near-metallic electrical conductivity which includes (a) at least one metal and (b) a lithium-containing material, the lithium-containing material being selected from the group consisting of lithium metal and a lithium-containing salt, wherein the at least one metal and the lithium-containing material are formed into the lithium-containing target material and wherein the lithium-containing target material is configured with a composition sufficient for physical vapor deposition of a lithium-containing electrode of the electrochemical device in a single step, the lithium-containing electrode as deposited requiring no further lithium doping. Furthermore, the composition of the metallic lithium-containing target material may be configured to provide a low enough electrical resistance to permit DC sputtering. Chambers and tools including the sputter target and process flows for fabricating electrochemical devices including steps utilizing the sputter target are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.