公开(公告)号：US07378931B2

公开(公告)日：2008-05-27

申请号：US11844483

申请日：2007-08-24

申请人： Mitsuru Odahara ,  Tomoyuki Maeda

发明人： Mitsuru Odahara ,  Tomoyuki Maeda

IPC分类号： H01F5/00

CPC分类号： H01F17/0013 ,  H01F2017/002

摘要： A multilayer coil component is formed such that ceramic green sheets having coil conductors and via hole conductors are laminated. The multilayer coil component includes therein a spiral coil in which the coil conductors are connected in series through the via hole conductors. In plan view in a lamination direction, the via hole conductors are located in positions spaced toward the outer side of the spiral coil, the positions being located near end surfaces in a long side direction of a multilayer body.

摘要翻译： 形成多层线圈部件，使得具有线圈导体和通孔导体的陶瓷生片层压。 多层线圈组件包括螺旋线圈，其中线圈导体通过通孔导体串联连接。 在层叠方向的平面图中，通孔导体位于与螺旋线圈的外侧隔开的位置，该位置位于多层体的长边方向的端面附近。

公开(公告)号：US08410886B2

公开(公告)日：2013-04-02

申请号：US13357582

申请日：2012-01-24

申请人： Mitsuru Odahara ,  Akihiro Motoki ,  Akihiro Ono

发明人： Mitsuru Odahara ,  Akihiro Motoki ,  Akihiro Ono

IPC分类号： H01F5/00

CPC分类号： H01F41/04 ,  H01F17/0013 ,  H01F17/04 ,  H01F27/2804 ,  H01F41/046 ,  H01F2027/2809

摘要： A multilayer coil component is provided to have high reliability and in which internal stress arising from the difference in firing shrinkage behavior and/or thermal expansion coefficient between ferrite layers and internal conductor layers is alleviated without forming conventional voids between the ferrite layers and the internal conductor layers. A method of manufacturing a multilayer coil includes a step of isolating interfaces between internal conductors and surrounding ferrite by allowing a complexing agent solution to reach interfaces between the internal conductors and the surrounding ferrite through side gap portions from side surfaces of a ferrite element including a helical coil. The complexing agent solution contains at least one selected from the group consisting of an aminocarboxylic acid, a salt of the aminocarboxylic acid, an oxycarboxylic acid, a salt of the oxycarboxylic acid, an amine, phosphoric acid, a salt of phosphoric acid, and a lactone compound.

摘要翻译： 提供多层线圈部件以具有高可靠性，并且在铁氧体层和内部导体之间不形成常规的空隙而减轻铁氧体层和内部导体层之间的烧制收缩性能和/或热膨胀系数差异产生的内部应力 层。 制造多层线圈的方法包括通过使络合剂溶液通过包括螺旋形的铁氧体元件的侧表面的侧面间隙部分的内部导体和周围的铁氧体之间的界面来分离内部导体和周围的铁氧体之间的界面的步骤 线圈 络合剂溶液含有至少一种选自氨基羧酸，氨基羧酸的盐，羟基羧酸，羟基羧酸的盐，胺，磷酸，磷酸的盐和 内酯化合物。