Integrated circuit device and method of manufacturing the same
US11600569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Sep 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D30/62
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An integrated circuit device includes a metal film and a complex capping layer covering a top surface of the metal film. The metal film includes a first metal, and penetrates at least a portion of an insulating film formed over a substrate. The complex capping layer includes a conductive alloy capping layer covering the top surface of the metal film, and an insulating capping layer covering a top surface of the conductive alloy capping layer and a top surface of the insulating film. The conductive alloy capping layer includes a semiconductor element and a second metal different from the first metal. The insulating capping layer includes a third metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.