Hermetic sealing of hard disk drive using laminated film seal
US9704539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Dec 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1466
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hermetically-sealed hard disk drive (HDD) utilizes a laminated film seal to seal an interface of an electrical flexible cable assembly and an HDD enclosure base. The laminated film seal may be constructed of a heat sealant layer that bonds with a surface of the base and a surface of the flex cable, a barrier layer which inhibits gas from escaping from inside the HDD, and a film surface protective layer which protects the heat sealant and barrier layers. Embodiments may include a heat sealant layer comprising a thermoplastic polymer such as polypropylene, a barrier layer comprising a metal such as aluminum, and a film surface protective layer comprising a thermoplastic polymer such as polyethylene terephthalate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.