Flexible circuit having flexing section of reduced stiffness, and method of manufacture thereof
US5219640A · kind A · utility
34Cited by
2References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Sep 11, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flexible circuit is presented having a flexing (cyclic bending) section of lower stiffness than adjacent parts of the circuit. The lower stiffness in the flexing section is achieved by reducing the thickness of the flexing section, either by omitting or removing some or all of the dielectric material of the flexible circuit in the flexing section, or by replacing conventional dielectric material in the flexing section with a polymer of lower modulus of elasticity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.