Microelectromechanical magnetic switches having rotors that rotate into a recess in a substrate
US7432788B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2004 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Jun 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2036/0093
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic switch includes a substrate having a recess therein. A rotor or rotors are provided on the substrate. The rotor includes a tail portion that overlies the recess, and a head portion that extends on the substrate outside the recess. The rotor may be fabricated from ferromagnetic material, and is configured to rotate the tail in the recess in response to a changed magnetic field. First and second magnetic switch contacts also are provided that are configured to make or break electrical connection between one another in response to rotation of the tail in the recess, in response to the changed magnetic field. Related operation and fabrication methods also are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.