Multiple layer thin films with improved corrosion resistance
US5510173A · kind A · utility
106Cited by
13References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 20, 1993 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Aug 20, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31942
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The durability of thin metal coatings and particularly substantially transparent copper and silver plus noble metal coatings and their ability to withstand corrosive environments is improved by overcoating the metal layers with a double coating of dielectric. The first coating is made up of dielectric based on indium and/or zinc. The second coating is made up of dielectric based on indium and tin. These overcoatings are more effective than a single coating based on one metal or a single coating based upon the two metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.