Inductor part, and method of producing the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNobuhiro Tada, Toshihide Tabuchi, Hiroshi Ikezaki
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Abstract
A printing substrate having a spiral recess filled with conductive paste is placed on an insulation substrate. The conductive paste is transferred onto the insulation substrate, and is then sintered with the insulation substrate to form a coil pattern on a single surface of the insulation substrate. A non-magnetic section of non-magnetic material is formed around the coil pattern. The inductor device having above configuration has excellent attenuation characteristics in a high frequency band, while having a low profile because of a thinner magnetic section.
Claims38
An inductor device comprising:
- an insulation substrate;
- a coil pattern including a spiral conductive portion on said insulation substrate;
- a magnetic section over said coil pattern, said magnetic section being disposed on said insulation substrate;
- and
- an external electrode coupled to said coil pattern,
- wherein said conductive portion is formed through sintering conductive material on said insulation substrate together with said insulation substrate.
A method for manufacturing an inductor device, comprising the steps of:
- placing a printing substrate having a spiral shaped recess formed therein filled with conductive paste on an insulation substrate;
- forming a conductive portion on the insulation substrate through transferring said filled conductive paste onto the insulation substrate;
- forming a coil pattern on the insulation substrate through sintering the conductive portion with the insulation substrate;
- placing a magnetic section on the insulation substrate;
- forming an external electrode;
- and
- coupling the coil pattern to the external electrode.
A method for manufacturing an inductor device, comprising the steps of:
- placing a printing substrate having a spiral shaped recess formed therein filled with conductive paste on an insulation substrate;
- forming a coil pattern including a conductive portion on the insulation substrate through transferring the filled conductive paste onto the insulation substrate;
- placing a magnetic section on the insulation substrate;
- sintering the conductive portion, the coil pattern, and the insulation substrate simultaneously;
- forming an external electrode;
- and
- coupling the coil pattern to the external electrode.
Dependencies are inferred from the claim text.