Method for manufacturing ferrite magnet device, method for manufacturing non-reciprocal circuit device, and method for manufacturing composite electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorTakashi HASEGAWA
Life of this patent
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Abstract
A method for manufacturing a ferrite magnet device including a ferrite body and first and second center electrodes arranged so as to intersect and be electrically insulated from each other and a permanent magnet arranged to apply a direct current magnetic field to the ferrite body and a method for manufacturing an isolator or a composite electronic component, which include the ferrite magnet device. A magnetic force of the permanent magnet is adjusted using a measurement jig and a magnetic force adjusting apparatus while the permanent magnet is fixed to a principal surface of the ferrite body.
Claims11
A method for manufacturing a ferrite magnet device comprising the steps of:
- providing a ferrite magnet device including a ferrite body and a plurality of center electrodes arranged so as to intersect and be electrically insulated from each other and a permanent magnet arranged to apply a direct current magnetic field to the ferrite body;
- and
- adjusting a magnetic force of the permanent magnet using a measurement jig and a magnetic force adjusting apparatus while the permanent magnet is fixed to a principal surface of the ferrite body.
A method for manufacturing a non-reciprocal circuit device comprising the steps of:
- providing a non-reciprocal circuit device including a ferrite magnet device having a ferrite body and a plurality of center electrodes arranged so as to intersect and be electrically insulated from each other and a permanent magnet arranged to apply a direct current magnetic field to the ferrite body;
- adjusting a magnetic force of the permanent magnet using a measurement jig and a magnetic force adjusting apparatus while the permanent magnet is fixed to a principal surface of the ferrite body;
- and
- assembling the ferrite magnet device and other devices after the adjustment.
A method for manufacturing a composite electronic component comprising the steps of:
- providing a composite electronic component including a ferrite magnet device having a ferrite body and a plurality of center electrodes arranged so as to intersect and be electrically insulated from each other and a permanent magnet for applying a direct current magnetic field to the ferrite body;
- adjusting a magnetic force of the permanent magnet using a measurement jig and a magnetic force adjusting apparatus while the permanent magnet is fixed to a principal surface of the ferrite body;
- and
- assembling the ferrite magnet device and other devices after the adjustment.
Dependencies are inferred from the claim text.