Invention Grant
- Patent Title: Wire wound electronic part
- Patent Title (中): 绕线电子部件
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Application No.: US12197941Application Date: 2008-08-25
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Publication No.: US07786838B2Publication Date: 2010-08-31
- Inventor: Yoshinari Nakada , Takayuki Maruyama , Hideharu Suzuki , Koihci Iguchi , Takahiro Samata , Satoshi Kimura
- Applicant: Yoshinari Nakada , Takayuki Maruyama , Hideharu Suzuki , Koihci Iguchi , Takahiro Samata , Satoshi Kimura
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2007-230303 20070905
- Main IPC: H01F5/00
- IPC: H01F5/00

Abstract:
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.
Public/Granted literature
- US20090058591A1 WIRE WOUND ELECTRONIC PART Public/Granted day:2009-03-05
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