Nickel-X/gold/nickel-X conductors for solid state devices where X is phosphorus, boron, or carbon
US4268584A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Dec 17, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12944
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laminated conductor includes a lower thin film of nickel-X alloy or pseudo alloy deposited upon a substrate containing silicon or upon a substrate intended for use as a magnetic bubble storage device. Upon the film of nickel-X alloy, a thicker film of gold is deposited as the conductive portion of the conductor. On the upper surface of the gold layer is deposited a thin film of nickel-X alloy. Failure of the conductor because of electromigration is reduced dramatically as compared with use of molybdenum instead of nickel in the laminated structure. The nonmagnetic nickel-X alloy does not interfere with magnetic fields or produce unwanted magnetic fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.