Flexible printed circuit board
US4781969A · kind A · utility
46Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed circuit board is provided wherein a composite metal layer is affixed to at least one surface of a flexible dielectric substrate, the composite metal layer comprising an inner aluminum layer and an outer copper layer. Owing to the relatively high elongation of the aluminum layer, when the printed circuit board is flexed the circuit thereon does not crack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.