Fretting and whisker resistant coating system and method
US7808109B2 · kind B2 · utility
6Cited by
31References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2008 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Jun 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12896
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electrically conductive material coated with a plurality of layers, includes a metal or metal alloy substrate; a barrier layer deposited on said substrate effective to inhibit diffusion of constituents of said substrate to said plurality of layers; a sacrificial layer deposited on said barrier layer effective to form intermetallic compounds with tin; a low resistivity oxide metal layer deposited on said sacrificial layer; and an outermost layer of tin or a tin-base alloy directly deposited on said low resistivity oxide metal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.