Vertical inductor for WLCSP
US11984246B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2021 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Dec 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/19107
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention include a microelectronic device and methods of forming a microelectronic device. In an embodiment the microelectronic device includes a semiconductor die and an inductor that is electrically coupled to the semiconductor die. The inductor may include one or more conductive coils that extend away from a surface of the semiconductor die. In an embodiment each conductive coils may include a plurality of traces. For example, a first trace and a third trace may be formed over a first dielectric layer and a second trace may be formed over a second dielectric layer and over a core. A first via through the second dielectric layer may couple the first trace to the second trace, and a second via through the second dielectric layer may couple the second trace to the third trace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.