公开(公告)号：US20140055224A1

公开(公告)日：2014-02-27

申请号：US14070386

申请日：2013-11-01

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Hitoshi MATSUURA ,  Takayuki ARAI ,  Kenji OTAKE

IPC: H01F17/00

CPC classification number: H01F17/0013 ,  H01F17/0033

Abstract: A laminated inductor having an internal conductor forming region, as well as a top cover region and bottom cover region formed in a manner sandwiching the internal conductor forming region between top and bottom; wherein the internal conductor forming region has a magnetic part formed with soft magnetic alloy grains, as well as helical internal conductor embedded in the magnetic part; and at least one of the top cover region and bottom cover region (or preferably both) is/are formed with soft magnetic alloy grains whose average grain size is greater than that of grains in the internal conductor forming region including the soft magnetic alloy grains constituting the magnetic part.

Abstract translation: 具有内部导体形成区域的层叠电感器，以及以在顶部和底部之间夹持内部导体形成区域的方式形成的顶部覆盖区域和底部覆盖区域; 其特征在于，所述内部导体形成区域具有形成有软磁性合金晶粒的磁性部分，以及埋设在所述磁性部分中的螺旋状内部导体。 并且顶盖区域和底盖区域（或优选两者）中的至少一个由平均粒径大于包括构成的软磁性合金颗粒的内部导体形成区域的晶粒的平均粒径的软磁性合金晶粒形成 磁性部分。