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US 2018/0122560 A1Published application
Multilayer inductor and method for manufacturing multilayer inductor
AssigneeFdk Corporation
InventorsKenji OKUDA, Daisuke Matsubayashi, Mikio Kitaoka, Shohei Itagaki
Life of this patent
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Abstract
A multilayer inductor includes a stack including a coil spirally wound and overlapped in a stacking direction in a magnetic body, an electrode provided on a bottom surface of the stack, a connecting conductor that passes through the stack toward the bottom surface from one end of the coil to the electrode to connect the end of the coil with the electrode, and a nonmagnetic part that surrounds the connecting conductor.
Claims6
A multilayer inductor comprising:
- a stack including a coil spirally wound and overlapped in a stacking direction in a magnetic body;
- an electrode provided on a bottom surface of the stack;
- a connecting conductor that passes through the stack toward the bottom surface from one end of the coil to the electrode to connect the end of the coil with the electrode;
- and
- a nonmagnetic part that surrounds the connecting conductor.
2 more elements
A method for manufacturing a multilayer inductor, the method comprising:
- screen printing at least one of a magnetic pattern, a first conductor pattern having an open-loop shape, and a second conductor pattern that forms a connecting conductor to fabricate a printed pattern layer;
- depositing the patterns by repeatedly performing the screen printing to form a stack;
- and
- providing an electrode on a bottom surface of the stack, wherein
- the screen printing includes screen printing a nonmagnetic pattern that surrounds the second conductor pattern, and
- the depositing includes
- interconnecting the first conductor patterns in layers to form a coil that is spirally wound and overlapped in a stacking direction in a magnetic body,
- connecting the second conductor patterns to form the connecting conductor that passes through the stack toward the bottom surface from one end of the coil to the electrode to connect the end of the coil with the electrode, and
- connecting the nonmagnetic patterns to form a nonmagnetic part that surrounds the connecting conductor.
6 more elements
Dependencies are inferred from the claim text.