Read heads in planar monolithic integrated circuit chips
US6404191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of magnetic field sensing structures in a monolithic integrated circuit chip structure to provide output signals at outputs thereof of magnetic field changes provided therein from corresponding sources having poled pair structures with a gap space between them with adjacent ones of the magnetic field sensing structures that are interconnected with a circuit formed in the monolithic integrated circuit chip such as an amplifier. The paired pole structures may intersect a surface of the chip perpendicular to the major surfaces thereof or in one of, or a surface parallel to, the major surfaces thereof. A magnetic field generating structure may also be included in the chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.