Flexure of disk drive suspension, and method of manufacturing conductive circuit portion of flexure
US9761256B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 2017 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | May 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flexure mounted on a load beam of a disk drive suspension, including a metal base formed of a stainless-steel plate; and a conductive circuit arranged along the metal base. The conductive circuit includes an insulating layer on the metal base; and a conductor on the insulating layer. The conductor includes a thin conductor portion formed in a first region (A1) which is part of the conductive circuit in a longitudinal direction; and a thick conductor portion formed in a second region (A2) which is another part of the conductive circuit in the longitudinal direction, the thick conductor portion being thicker than the thin conductor portion. The flexure includes a flexure tail portion having an opening formed in the metal base; a bent portion of the metal base which is bent in a thickness direction at the opening; and a trace curved portion curved in the thickness direction at a position facing the opening. The trace curved portion includes the thick conductor portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.