UV curable and electrically conductive adhesive for bonding magnetic disk drive components
US6947258B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Sep 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0233
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically conductive adhesive includes a resin component, a photoinitiator, and metal-coated polymer beads. The beads have an average diameter and a very narrow size distribution around the average diameter. The adhesive is applied between a read/write head and a suspension to attach the two, and the adhesive is cured by exposure to an illumination and/or heat. A pad spacer is included between the read/write head and the suspension to define a spacing and parallelism therebetween. The beads in the adhesive can form one or more layers between the read/write head and the suspension or can be disordered. The metal coating of the beads provide electrical conductivity between the read/write head and the suspension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.