Three dimensional inductor and transformer
US8143952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Oct 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three dimensional on-chip inductor, transformer and radio frequency amplifier are disclosed. The radio frequency amplifier includes a pair of transformers and a transistor. The transformers include at least two inductively coupled inductors. The inductors include a plurality of segments of a first metal layer, a plurality of segments of a second metal layer, a first inductor input, a second inductor input, and a plurality of through silicon vias coupling the plurality of segments of the first metal layer and the plurality of segments of the second metal layer to form a continuous, non-intersecting path between the first inductor input and the second inductor input. The inductors can have a symmetric or asymmetric geometry. The first metal layer can be a metal layer in the back-end-of-line section of the chip. The second metal layer can be located in the redistributed design layer of the chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.