Method for manufacturing monolithic ceramic electronic component, and multilayer composite
AssigneeMurata Manufacturing Co., Ltd.
InventorsRyuichiro WADA, Tetsuya IKEDA
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Abstract
A multilayer composite including a core made of a magnetic ceramic sintered compact disposed therein, and shrinkage restraining layers including an inorganic powder that is not substantially sintered at the sintering temperature of the green ceramic layers are sintered in order to reduce the difference in shrinkage behavior during firing between the core and the green ceramic layers.
Claims16
A method for manufacturing a monolithic ceramic electronic component including an inductor element, the method comprising:
- a step of forming a multilayer composite that includes a core made of a magnetic ceramic sintered compact, a coil conductor formed around the core, at least two green ceramic layers laminated such that the core and the coil conductor are sandwiched therebetween, and a shrinkage restraining layer arranged in contact with a specific one of the green ceramic layers and including an inorganic material powder that is not substantially sintered at a sintering temperature of the green ceramic layers;
- and
- the step of firing the multilayer composite at the sintering temperature of the green ceramic layers.
A multilayer composite prepared for manufacturing a monolithic ceramic electronic component including an inductor element, the multilayer composite comprising:
- a core made of a magnetic ceramic sintered compact;
- a coil conductor disposed around the core;
- at least two green ceramic layers stacked with the core and the coil conductor therebetween;
- and
- a shrinkage restraining layer disposed along a specific one of the green ceramic layers, the shrinkage restraining layer including an inorganic powder that does not substantially sinter at a sintering temperature of the green ceramic layers.
Dependencies are inferred from the claim text.