Methods of manufacturing inductors
AssigneeMurata Manufacturing Co., Ltd.
InventorsYoichiro Ito, Toshio Kawabata, Takahiro Yamamoto, Hiroshi Komatsu, Tadashi Morimoto, Takashi Shikama
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Abstract
An method of manufacturing an inductor having a large current capacity which includes a magnetic sintered body formed via wet pressing treatment and a coil assembly disposed within the magnetic sintered body. The coil assembly is defined by a substantially cylindrical magnetic core member which is wound by a coil. Both ends of the coil of the coil assembly are respectively and electrically connected to an input electrode and an output electrode which are respectively disposed on two mutually facing end surfaces of the magnetic sintered body.
Claims20
A method of manufacturing an inductor, the method comprising the steps of:
- preparing a slurry containing a magnetic ceramic material;
- introducing the slurry into a mold in which an electrically conductive wire has been placed;
- conducting wet pressing treatment of the slurry in the mold to obtain a magnetic molded body containing the electrically conductive wire;
- sintering the magnetic molded body containing the electrically conductive wire, so as to form a magnetic sintered body;
- and
- forming, on outer surfaces of the magnetic sintered body, external electrodes electrically connected to end portions of the electrically conductive wire.
A method of manufacturing an inductor, the method comprising the steps of:
- preparing a slurry containing a magnetic ceramic material;
- forming a coil assembly having a magnetic core member and an electrically conductive wire wound around the magnetic core member;
- placing the coil assembly into a mold;
- introducing the slurry into the mold in which the coil assembly has been placed;
- performing wet pressing treatment of the slurry in the mold to obtain a magnetic molded body containing the coil assembly;
- sintering the magnetic molded body containing the coil assembly, so as to form a magnetic sintered body;
- and
- forming, on outer surfaces of the magnetic sintered body containing the coil assembly, external electrodes electrically connected to end portions of the electrically conductive wire.
A method of manufacturing an inductor, the method comprising the steps of:
- preparing a slurry containing a magnetic ceramic material;
- introducing the slurry into a mold;
- performing wet pressing treatment of the slurry in the mold to produce a magnetic molded plate;
- forming at least one coil assembly having a magnetic core member and an electrically conductive wire wound around the magnetic core member;
- fixing the at least one coil assembly on the magnetic molded plate;
- putting the magnetic molded plate and the at least one coil assembly fixed thereto into a mold;
- introducing the slurry into the mold in which the magnetic molded plate and the at least one coil assembly has been placed;
- performing wet pressing treatment of the slurry in the mold with the magnetic molded plate and the at least one coil assembly so as to obtain a magnetic molded body containing the at least one coil assembly;
- sintering the magnetic molded body containing the at least one coil assembly to form a magnetic sintered body;
- and
- forming, on outer surfaces of the magnetic sintered body containing the at least one coil assembly, external electrodes electrically connected to end portions of the electrically conductive wire of the at least one coil assembly.
A method of manufacturing an inductor, the method comprising the steps of:
- preparing a slurry containing a magnetic ceramic material;
- introducing the slurry into a mold;
- performing wet pressing treatment of the slurry in the mold to produce a magnetic molded plate;
- fixing on the magnetic molded plate at least one coil assembly having an electrically conductive wound wire;
- placing the magnetic molded plate and the at least one coil assembly fixed thereto into a mold;
- introducing the slurry into the mold in which the magnetic molded plate and the at least one coil assembly has been placed;
- performing wet pressing treatment of the slurry, the magnetic molded plate and the at least one coil assembly so as to obtain a magnetic molded body containing the at least one coil assembly;
- sintering the magnetic molded body containing the at least one coil assembly to form a magnetic sintered body;
- and
- forming, on outer surfaces of the magnetic sintered body containing the at least one coil assembly, external electrodes electrically connected to end portions of the electrically conductive wire of the at least one coil assembly.
Dependencies are inferred from the claim text.