Self-insulating metal vias in magnetic micro-devices
US12094629B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2021 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Jun 15, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic micro-device and process to manufacture the same is disclosed. The magnetic micro-device has a near-zero conductivity magnetic nanocomposite film layer with a plurality of apertures through which a corresponding plurality of electrical conductors (vias) pass. Due to the near-zero conductivity of the magnetic nanocomposite film layer, the vias are self-insulating. The presence of the magnetic nanocomposite film layer results in greater inductance than that possible with an air core (or core-less) magnetic micro-device. Potential magnetic micro-devices include toroid micro-inductors, solenoid micro-inductors, toroid micro-transformers, and solenoid micro-transformers. Additional potential magnetic micro-devices include generators, motors, electromagnetic switches, and voice coils (for speakers or microphones). The process used to manufacture the magnetic micro-device can be scaled to cost-effectively produce large numbers of the magnetic micro-device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.