Common mode choke coil and method of manufacturing the same

Details Common mode choke coil and method of manufacturing the same Common mode choke coil and method of manufacturing the same

2006-09-28

2008-08-19

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000, C029S602100

Reexamination Certificate

active

07414508

ABSTRACT:
The invention relates to a common mode choke coil and a method of manufacturing the same and provides a compact, low-profile, and low-cost common mode choke coil and a method of manufacturing the same. A common mode choke coil has a general outline in the form of a rectangular parallelepiped provided by forming an insulation layer, a first helical coil unit, a second helical coil unit, and a closed magnetic path on a silicon substrate made of a single-crystal using thin film forming techniques. The first and second helical coil units are formed such that their axes of spiral extend substantially parallel to a substrate surface of the silicon substrate.

REFERENCES:
patent: 5372967 (1994-12-01), Sundaram et al.
patent: 6008102 (1999-12-01), Alford et al.
patent: 6114937 (2000-09-01), Burghartz et al.
patent: 6696912 (2004-02-01), Ahn et al.
patent: 6876285 (2005-04-01), Liang et al.
patent: 6992557 (2006-01-01), Aoyagi
patent: 7088215 (2006-08-01), Winter et al.
patent: B2 3601619 (2004-10-01), None

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