Conductive coating of flexible circuits for ils transmission lines
US6487048B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Jul 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0715
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flexible cable consists of trace conductors disposed on a first flexible insulating substrate, and a second flexible insulating upper substrate. Holes are placed on one of the substrates to expose the central conductor. The cable is then washed and sputter deposited with a thin gold film of a thickness of about 10 angstroms. Finally, an aluminum layer of thickness of more than 100 angstroms is sputtered over the cable. The aluminum sputter layer is connected to the central conductor and then they are both electrically grounded. A cost-effective method of making such cable to solve the adhesion problem of the aluminum coating in the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.