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US 2010/0164642 A1Published application
Non-reciprocal circuit device
AssigneeMurata Manufacturing Co., Ltd.
InventorShingo OKAJIMA
Life of this patent
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Abstract
A non-reciprocal circuit device includes a ferrite arranged to receive a direct-current magnetic field from a permanent magnet, a first central electrode and a second central electrode arranged on main surfaces of the ferrite. Electrodes are provided in recesses provided on both top and bottom surfaces of the ferrite. These electrodes are soldered to terminal electrodes provided on a circuit board and include a countermeasure to prevent the electrodes from detaching from the recesses when a pulling force is applied to a joining portion therebetween.
Claims12
A non-reciprocal circuit device comprising:
- a permanent magnet;
- a ferrite arranged to receive a direct-current magnetic field from the permanent magnet;
- a plurality of central electrodes defined by a conductive film and arranged on the ferrite so as to cross each other and so as to be electrically insulated from each other;
- electrode conductors disposed in recesses provided on edge surfaces of the ferrite which are perpendicular or substantially perpendicular to main surfaces of the ferrite;
- wherein
- the electrode conductors are electrically connected to the plurality of central electrodes and to terminal electrodes which are provided on a circuit board;
- and
- the electrode conductors include a countermeasure structure arranged to prevent detachment of the electrode conductors from the recesses when a pulling force is applied to portions of the electrode conductors joined to the terminal electrodes.
5 more elements
Dependencies are inferred from the claim text.