Inductor and method for fabricating the same

Details Inductor and method for fabricating the same Inductor and method for fabricating the same

2009-04-23

2010-10-05

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000, C029S602100

Reexamination Certificate

active

07808358

ABSTRACT:
An inductor includes a flat substrate and a conductor in a spiral shape having a plurality of turns. The plane on which the conductor is formed is substantially in parallel with a principal surface of the substrate. The turns of the conductor are equally spaced from each other in a direction parallel to the plane on which the conductor is formed. An outer one of the turns of the conductor is wider and thinner than an inner one of the turns of the conductor. A level of at least one of a top and a bottom of the conductor differs from one turn to another in a cross section vertical to the plane on which the conductor is formed.

REFERENCES:
patent: 4075591 (1978-02-01), Haas
patent: 5445922 (1995-08-01), Maple
patent: 6201215 (2001-03-01), Person et al.
patent: 6366192 (2002-04-01), Person et al.
patent: 7370403 (2008-05-01), Hsu et al.
patent: 2002/0067235 (2002-06-01), Ueda et al.
patent: 2008/0157913 (2008-07-01), Kim
patent: 2008/0174398 (2008-07-01), Hsu et al.
patent: 2002-134319 (2002-05-01), None

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