Thin-film inductor device
US11837398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2020 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Dec 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thin-film inductor device includes a substrate made of an electrically insulating material, a first coil unit, a second coil unit, and an inductance-enhancing structure. The first coil unit includes a first upper coil, a first lower coil, and two first electrodes electrically connected to the first upper and lower coils, respectively. The second coil includes a second upper coil, a second lower coil, and two second electrodes electrically connected to the second upper and lower coils, respectively. The first and second upper/lower coils are disposed spacedly and arranged by bifilar winding. The inductance-enhancing structure encapsulates the substrate, the first coil unit, and the second coil unit such that two terminal parts of each of the first electrodes and the second electrodes are exposed for external electrical connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.