Inductor devices

Details Inductor devices Inductor devices

2011-04-19

2011-04-19

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000

Reexamination Certificate

active

07928824

ABSTRACT:
The invention relates to a high frequency inductor device with high quality factor (Q). The inductor device comprises a substrate and a gradually sized conductive coil with a plurality of windings surrounded and disposed on the substrate. The windings comprises a first conductive segment disposed on a first surface of the substrate, a second conductive segment disposed on a second surface of the substrate, a first conductive via hole connecting the first and second conductive segments, and a second conductive via hole connecting the second conductive segment to a first conductive segment of the following winding. The length of the first conductive segment is different than that of the first conductive segment of the following winding.

REFERENCES:
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patent: 6803848 (2004-10-01), Yeo et al.
patent: 7423884 (2008-09-01), Enchi et al.
patent: 2003/0179067 (2003-09-01), Gamou et al.
patent: 2005/0052268 (2005-03-01), Pleskach et al.
patent: 2005/0122199 (2005-06-01), Ahn et al.
patent: 2007/0085649 (2007-04-01), Park
patent: 2009/0153282 (2009-06-01), Taoka et al.
patent: 1469400 (2004-01-01), None
patent: 2768205 (2006-03-01), None

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