Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2008-03-25
2008-03-25
Aurora, Reena (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S249000, C324S260000
Reexamination Certificate
active
10975736
ABSTRACT:
A Printed Circuit Board (PCB) having a weak magnetic field sensor of the present invention includes a base plate on which a first excitation circuit and a first detection circuit are formed on each of the sides thereof, soft magnetic core bodies laminated on the top and bottom of the base plate, respectively, and formed of a plurality of soft magnetic cores, and outer layers that are laminated on the soft magnetic core bodies, respectively, and on which a second excitation circuit and a second detection circuit connected to the first excitation circuit and the first detection circuit through via holes are formed so as to surround the soft magnetic cores, respectively. The present invention is characterized in that the soft magnetic cores, the excitation circuit and the detection circuit formed on one side of the base plate are perpendicular to the soft magnetic cores, the excitation circuit and the detection circuit formed on the other side of the base plate.
REFERENCES:
patent: 5936403 (1999-08-01), Tamura
patent: 6270686 (2001-08-01), Tamura
patent: 6753682 (2004-06-01), Kang et al.
patent: 2006/0001422 (2006-01-01), Kang et al.
patent: 2000-07791 (2000-02-01), None
patent: 2003-73286 (2003-09-01), None
patent: 2004-11287 (2004-02-01), None
Bae Won-Cheol
Kang Myung-Sam
Kim Sang-Duck
Lee Doo-Hwan
Ryu Chang-Sup
Aurora Reena
Gottlieb, Rackman & Reisman, P.C
Samsung Electro-Mechanics Co. Ltd
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