Electrostatic protection for magnetic heads
US6687097B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0191
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an ESD and EOS protection method and apparatus that can be easily implemented in existing disk drive designs and manufacturing process. One apparatus embodiment includes a first conductive member electrically connected to a first terminal of a magnetic head element; a second conductive member electrically connected to a first second terminal of the magnetic head element; and a variable conductive member, such as a variably conductive member. One method embodiment includes operably connecting a first conductive member to a first terminal of a magnetic head element; operably connecting a second conductive member to a second terminal of the magnetic head element; and operably connecting a variably conductive member, such as a variably conductive polymer, to the first conductive member and to the second conductive member. The variably conductive member in these embodiments acts as a conductor when a sufficiently high potential exists between the first conductive member and the second conductive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.