Stack-type inductor element and method of manufacturing the same, and communication device
AssigneeMurata Manufacturing Co., Ltd.
InventorTomoya Yokoyama
Life of this patent
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Abstract
A stack-type inductor element includes a stack including a magnetic element layer, a coil conductor pattern provided in the stack and the magnetic element layer defines a magnetic element core, a plurality of first pad electrodes provided on one main surface of the stack, and a plurality of second pad electrodes provided on the other main surface of the stack so as to be symmetric to the plurality of first pad electrodes. One end and the other end of the coil conductor pattern are electrically connected to two of the plurality of first pad electrodes, respectively, and the plurality of second pad electrodes are all electrically open.
Claims11
A stack-type inductor element, comprising:
- a stack including a magnetic element layer, a first main surface, and a second main surface;
- a coil conductor pattern provided in the stack and including the magnetic element layer as a magnetic element core;
- a plurality of first pad electrodes provided on the first main surface of the stack;
- and
- a plurality of second pad electrodes provided on the second main surface of the stack to include a portion symmetric to the plurality of first pad electrodes;
- wherein
- a first end and a second end of the coil conductor pattern is electrically connected to two of the plurality of first pad electrodes, respectively, and the plurality of second pad electrodes are all electrically open;
- the first and second main surfaces of the stack oppose each other, and the opposing first and second main surfaces include portions that are symmetric to each other;
- and
- the stack is an integral fired ceramic laminate, and the first and second main surfaces of the stack respectively define uppermost and lowermost surfaces of the ceramic laminate.
Dependencies are inferred from the claim text.