Patent · US Active

High Q factor inductor structure

US9196406B2 · kind B2 · utility

13Cited by

4References

31Claims

0Family size

Assignee

RF Micro Devices, Inc. · US

Inventors

Dirk Robert Walter Leipold · San Jose, US
Danny Chang · San Francisco, US
George Maxim · Saratoga, US
Ruediger Bauder · Feldkirchen-Westerham, DE

Key dates

Filing date	Dec 6, 2013
Grant date	Nov 24, 2015
Priority date	—
Expiry date	Dec 6, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2017/0073
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present disclosure provides a vertical inductor structure in which the magnetic field is closed such that the magnetic field of the vertical inductor structure is cancelled in the design direction outside the vertical inductor structure, yielding a small, or substantially zero, coupling factor of the vertical inductor structure. In one embodiment, several vertical inductor structures of the present disclosure can be placed in close proximity to create small resonant circuits and filter chains.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.