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Title:
WIRED ELECTRONIC PARTS
Document Type and Number:
Japanese Patent JP3456454
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain wired electronic parts which can prevent thinning and fusion of its wires by suppressing the Cu melting from a wire to solder as much as possible.
SOLUTION: A chip coil has electrodes 13 each of which is composed of a base metallic (Ag) layer 13a, a plated Ni layer 13b, and a plated Sn-Cu layer 13c at both ends of a core 10. The terminals 16 and 16 of a wire 15 are buried in the plated Sn-Cu layer 13c by thermocompression bonding. When the chip coil is subjected to reflow soldering, the Cu of the plated Sn-Cu layer 13c malts into reflow solder and suppresses the Cu from melting out of the wire 15.


Inventors:
Toi Takaomi
Tetsuya Morinaga
Application Number:
JP27907799A
Publication Date:
October 14, 2003
Filing Date:
September 30, 1999
Export Citation:
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Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01F41/04; H01F17/04; H01F27/29; (IPC1-7): H01F27/29
Domestic Patent References:
JP10312922A
JP10321455A
JP11205015A
JP3159207A
JP3145706A
JP1041152A
Attorney, Agent or Firm:
Takekazu Morishita



 
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