公开(公告)号：US07786838B2

公开(公告)日：2010-08-31

申请号：US12197941

申请日：2008-08-25

申请人： Yoshinari Nakada ,  Takayuki Maruyama ,  Hideharu Suzuki ,  Koihci Iguchi ,  Takahiro Samata ,  Satoshi Kimura

发明人： Yoshinari Nakada ,  Takayuki Maruyama ,  Hideharu Suzuki ,  Koihci Iguchi ,  Takahiro Samata ,  Satoshi Kimura

IPC分类号： H01F5/00

CPC分类号： H01F27/292 ,  H01F1/344 ,  H01F17/045 ,  H01F41/005 ,  H01F41/10 ,  H01F2017/048 ,  Y10T29/4902

摘要： A wire wound electronic part includes a ferrite core comprising ferrite having a columnar wire wound core and flanges formed at both ends thereof, a coil conductor wound around the wire wound core of the ferrite core, and at least a pair of terminal electrodes having a Cu conduction layer disposed to the outer surface of the flange, in which both ends of the coil conductor wound around the wire wound core are conductively connected to the terminal electrodes. The terminal electrode is formed by coating an electrode paste containing a Cu powder and a glass frit to the outer surface of the ferrite core, and then applying a heat treatment to the ferrite core. There is a reaction layer of a portion of the ferrite core and the glass frit at a boundary between the ferrite core and the Cu conduction layer. The terminal electrodes has the peel strength identical with that of an existent Ag terminal electrode, without forming a plate layer.

摘要翻译： 绕线电子部件包括铁氧体磁芯，该铁氧体磁芯包括铁氧体，该铁氧体具有圆柱形铁芯和其两端形成的凸缘，缠绕在铁氧体磁芯的绕线芯上的线圈导体，以及至少一对具有Cu 导电层设置在凸缘的外表面上，其中卷绕在绕线芯上的线圈导体的两端导电地连接到端子电极。 端子电极通过将包含Cu粉末和玻璃料的电极浆料涂覆到铁氧体磁芯的外表面，然后对铁氧体磁芯进行热处理而形成。 在铁氧体磁芯和Cu导电层之间的边界处存在铁氧体磁芯和玻璃料的一部分的反应层。 端子电极的剥离强度与存在的Ag端子电极的剥离强度相同，而不形成板层。

公开(公告)号：US20090058591A1

公开(公告)日：2009-03-05

申请号：US12197941

申请日：2008-08-25

申请人： Yoshinari Nakada ,  Takayuki Maruyama ,  Hideharu Suzuki ,  Koihci Iguchi ,  Takahiro Samata ,  Satoshi Kimura

发明人： Yoshinari Nakada ,  Takayuki Maruyama ,  Hideharu Suzuki ,  Koihci Iguchi ,  Takahiro Samata ,  Satoshi Kimura

IPC分类号： H01F17/04

CPC分类号： H01F27/292 ,  H01F1/344 ,  H01F17/045 ,  H01F41/005 ,  H01F41/10 ,  H01F2017/048 ,  Y10T29/4902

摘要： A wire wound electronic part includes a ferrite core comprising ferrite having a columnar wire wound core and flanges formed at both ends thereof, a coil conductor wound around the wire wound core of the ferrite core, and at least a pair of terminal electrodes having a Cu conduction layer disposed to the outer surface of the flange, in which both ends of the coil conductor wound around the wire wound core are conductively connected to the terminal electrodes. The terminal electrode is formed by coating an electrode paste containing a Cu powder and a glass frit to the outer surface of the ferrite core, and then applying a heat treatment to the ferrite core. There is a reaction layer of a portion of the ferrite core and the glass frit at a boundary between the ferrite core and the Cu conduction layer. The terminal electrodes has the peel strength identical with that of an existent Ag terminal electrode, without forming a plate layer.

摘要翻译： 绕线电子部件包括铁氧体磁芯，该铁氧体磁芯包括铁氧体，该铁氧体具有圆柱形铁芯和其两端形成的凸缘，缠绕在铁氧体磁芯的绕线芯上的线圈导体，以及至少一对具有Cu 导电层设置在凸缘的外表面上，其中卷绕在绕线芯上的线圈导体的两端导电地连接到端子电极。 端子电极通过将包含Cu粉末和玻璃料的电极浆料涂覆到铁氧体磁芯的外表面，然后对铁氧体磁芯进行热处理而形成。 在铁氧体磁芯和Cu导电层之间的边界处存在铁氧体磁芯和玻璃料的一部分的反应层。 端子电极的剥离强度与存在的Ag端子电极的剥离强度相同，而不形成板层。