Suspension board having a circuit and a flying lead portion
US7336446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0969
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A suspension board with circuit having a conductor layer formed in the form of a fine wiring circuit by an additive process, while providing a reduced risk of damage and breaking of the conductor layer in a flying lead portion. The suspension board with circuit comprises a supporting board 2, an insulating base layer 3 formed on the supporting board 2, a conductor layer 4 formed on the insulating base layer 3, an insulating cover layer 5 formed on the conductor layer 4, and a flying lead portion 9 in which a supporting-board-side opening 13, a base-layer-side opening 14, and a cover-layer-side opening 15 are formed so that both sides of the conductor layer 4 can be exposed therefrom. A reinforcing portion 16 or 23 for reinforcing the conductor layer 4 formed continuously from at least either of the insulating base layer 3 and the insulating cover layer 5 along the longitudinal direction of the conductor layer 4 is included in the flying lead portion 9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.