Method for suppressing tribocharge in the assembly of magnetic heads
US6870706B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | May 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0254
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for preventing electrostatic discharge (ESD) damage in the head-suspension assembly (HSA) construction process. The method teaches the formation of a novel GMR magnetic recording head on a conductive slider substrate, the GMR head being electrically connected to the substrate and its conducting leads having balanced resistances between the leads and the substrate. By establishing an electrical connection between the GMR head and the slider substrate, the entire HSA can be grounded during its construction. By also grounding any nearby conducting elements that could inadvertently contact the HSA or its parts, no accumulated tribocharges can discharge through the sensitive GMR sensor element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.