Printed circuit board having three-dimensional spiral inductor and method of fabricating same
US7170384B2 · kind B2 · utility
34Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2005 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | May 27, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/097
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A printed circuit board (PCB) having a three-dimensional spiral inductor, which includes a plurality of insulating layers and conductor layers. The PCB comprises a plurality of coil conductor patterns made of conductive material and shaped into strips, which is provided on the plurality of conductor layers, respectively, such that the plurality of coil conductor patterns are parallel to each other and positioned on the same plane perpendicular to the conductor layers, and in which each of the plurality of coil conductor patterns is longer than an adjacent inner coil conductor pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.