Disk drive head suspension structures having improved gold-dielectric joint reliability
US9734852B2 · kind B2 · utility
2Cited by
457References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Jun 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive head suspension or flexure and method of manufacture. Embodiments include a portion such as a terminal pad or flying lead comprising a base layer, a dielectric layer on the base layer, a conductor layer, a seed layer between the dielectric layer and the conductor layer, and a noncorrosive metal layer on the seed layer side of the conductor layer. The seed layer has a strip that extends beyond the edge of the dielectric layer. The noncorrosive metal layer extends over the strip of the seed layer and into contact with the edge of the dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.