Thin-film magnetic device, and electronic component module...

Details Thin-film magnetic device, and electronic component module... Thin-film magnetic device, and electronic component module...

2011-01-04

2011-01-04

Nguyen, Tuyen (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

Reexamination Certificate

active

07864017

ABSTRACT:
It is an object of the present invention to provide an electronic component module with which circuit malfunction can be adequately prevented. There are provided a base having wiring, and a thin-film magnetic device provided on one side of the base. The thin-film magnetic device comprises a first magnetic film disposed facing the base, a second magnetic film disposed on the opposite side of the first magnetic film with respect to the base, and a thin-film coil wound so as to encircle the second magnetic film a plurality of times. The thin-film coil has a plurality of first conductor pattern components provided between the first and second magnetic films, a plurality of second conductor pattern components provided on the opposite side of the second magnetic film with respect to the first magnetic film, and a plurality of connecting conductors that connect the first conductor pattern components and the second conductor pattern components in series. The relative magnetic permeability of the second magnetic film is greater than the relative magnetic permeability of the first magnetic film.

REFERENCES:
patent: 3210707 (1965-10-01), Constantakes
patent: 5070317 (1991-12-01), Bhagat
patent: 2009/0085711 (2009-04-01), Iwasaki
patent: A 05-021243 (1993-01-01), None
patent: 06224043 (1994-08-01), None
patent: 11224817 (1999-08-01), None
patent: B2 31354941 (2000-12-01), None
patent: 2001267129 (2001-09-01), None
patent: A 2004-274004 (2004-09-01), None

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