3D conductive ink printing method and inductor formed thereof
US10692965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2018 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Sep 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/0066
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods of forming an inductor using dry processes are described. A cavity is laser drilled in an insulator. A first magnetic material layer is printed in the cavity. An Ag conductive ink is printed on the first magnetic material layer and a second magnetic material layer printed on the ink. The ink has a trace sandwiched between the first and second magnetic material layers that provides a majority of the inductance of the inductor. A protective insulating layer protects the second magnetic material layer from a wet chemistry solution when contacts are formed to the ink. The second magnetic material layer and ink are deposited in or on the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.