Conductive structures, wordlines and transistors
US9972628B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2016 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Nov 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/667
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Some embodiments include a conductive structure which has a first conductive material having a work function of at least 4.5 eV, and a second conductive material over and directly against the first conductive material. The second conductive material has a work function of less than 4.5 eV, and is shaped as an upwardly-opening container. The conductive structure includes a third conductive material within the upwardly-opening container shape of the second conductive material and directly against the second conductive material. The third conductive material is a different composition relative to the second conductive material. Some embodiments include wordlines, and some embodiments include transistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.