-
公开(公告)号:US20190214187A1
公开(公告)日:2019-07-11
申请号:US16245031
申请日:2019-01-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Katsuhisa IMADA
CPC classification number: H01F27/29 , H01F27/2804 , H01F41/043 , H01F2027/2809
Abstract: A multilayer coil component includes a body including laminated ferrite layers, a coil conductor including conductive layers laminated in the body, and a pair of outer electrodes disposed on a lower surface of the body. Each of the pair of outer electrodes is electrically connected to a corresponding one of end portions of the coil conductor. Each of the outer electrodes includes an underlying electrode and a plating layer disposed on the underlying electrode. The underlying electrode is disposed at a distance from a side surface of the body.
-
公开(公告)号:US20240428975A1
公开(公告)日:2024-12-26
申请号:US18829531
申请日:2024-09-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Makoto HIRAKI , Katsuhisa IMADA
Abstract: A coil component in which stress inside thereof is alleviated and the DC resistance is low. A multilayer coil component includes an element body that includes an insulator portion and a coil embedded in the insulator portion; and outer electrodes disposed on surfaces of the insulator portion and electrically connected to ends of the coil. There is a groove-shaped void portion at a boundary between the coil and the insulator portion, and the void portion extends in a length direction of the coil. The coil has a ridge in the void portion, and the ridge extends in the length direction of the coil.
-
公开(公告)号:US20240128004A1
公开(公告)日:2024-04-18
申请号:US18389615
申请日:2023-12-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Makoto HIRAKI , Katsuhisa IMADA , Morihiro HAMANO , Ryouji MIZOBATA
IPC: H01F17/00 , H01F27/255 , H01F27/28 , H01F27/32 , H01F41/04
CPC classification number: H01F17/0013 , H01F27/255 , H01F27/2804 , H01F27/32 , H01F41/046 , H01F2027/2809
Abstract: A highly reliable multilayer coil component in which the internal stress is further alleviated, and a method for producing the same. The method produces a multilayer coil component that includes an insulator portion, a coil that is embedded in the insulator portion and includes a plurality of coil conductor layers electrically connected to one another, and an outer electrode that is disposed on a surface of the insulator portion and is electrically connected to an extended portion of the coil. The method includes forming a conductive paste layer by using a conductive paste; forming an insulating paste layer by using an insulating paste; forming a multilayer compact that includes the conductive paste layer and the insulating paste layer; and firing the multilayer compact, in which the conductive paste has a PVC of 60% or more and 80% or less (i.e., from 60% to 80%).
-
公开(公告)号:US20200035401A1
公开(公告)日:2020-01-30
申请号:US16510640
申请日:2019-07-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Keiichi YOSHINAKA , Katsuhisa IMADA , Mitsuhiro SATO , Ryohei KAWABATA
Abstract: A coil array component including an element assembly that includes a filler and a resin material, a first coil portion and a second coil portion that are embedded in the element assembly and that are composed of a first coil conductor and a second coil conductor, respectively, and four outer electrodes electrically connected to the first coil portion and the second coil portion. Also, the first coil conductor and the second coil conductor are covered with a glass layer.
-
公开(公告)号:US20190311847A1
公开(公告)日:2019-10-10
申请号:US16373552
申请日:2019-04-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Keiichi YOSHINAKA , Katsuhisa IMADA , Ryohei KAWABATA
Abstract: A coil component including an element assembly that contains a filler and a resin material, a coil portion composed of a coil conductor that is embedded in the element assembly, and a pair of outer electrodes electrically connected to the coil conductor. The outer electrodes are disposed on a lower surface, and the coil axis of the coil portion is parallel to a mounting surface.
-
公开(公告)号:US20190214182A1
公开(公告)日:2019-07-11
申请号:US16245083
申请日:2019-01-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Katsuhisa IMADA
CPC classification number: H01F27/2804 , H01F27/24 , H01F27/29 , H01F41/041 , H01F2027/2809
Abstract: A multilayer coil component includes a body including laminated ferrite layers, a coil conductor including conductive layers laminated in the body, and a pair of outer electrodes disposed on the lower surface of the body. Each of the pair of outer electrodes is electrically connected to a corresponding one of the end portions of the coil conductor. The lower surface of the multilayer coil component includes a recessed section between the pair of outer electrodes.
-
-
-
-
-