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US 2025/0166925 A1Published application
Multilayer ceramic capacitor
AssigneeMurata Manufacturing Co., Ltd.
InventorsYuta KUROSU, Yuta SAITO, Masahiro WAKASHIMA, Daiki FUKUNAGA, Yu TSUTSUI
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Abstract
A multilayer ceramic capacitor includes a second alloy portion including one metal element provided in a greatest amount among metal elements of an internal electrode layer, and one or more metal elements among a metal group including Sn, In, Ga, Zn, Bi, Pb, Cu, Ag, Pd, Pt, Ph, Ir, Ru, Os, Fe, V, and Y is provided between a second dielectric ceramic layer and a first internal electrode layer, and between a second dielectric ceramic layer and a second internal electrode layer, respectively.
Claims8
A multilayer body comprising:
- a first main surface and a second main surface on opposite sides in the stacking direction, a first side surface and a second side surface on opposite sides in a width direction orthogonal or substantially orthogonal to the stacking direction, and a first end surface and a second end surface on opposite sides in a length direction orthogonal or substantially orthogonal to the stacking direction and the width direction;
- wherein
- an external electrode is provided on the multilayer body;
- the multilayer body includes:
- an inner layer portion;
- outer layer portions sandwiching the inner layer portion in the stacking direction;
- and
- third dielectric layers sandwiching the inner layer portion and the outer layer portions in the width direction;
- the inner layer portion includes:
- a first internal electrode layer extending to the first end surface;
- a second internal electrode layer extending to the second end surface;
- a first dielectric portion sandwiched by the first internal electrode and the second internal electrode;
- and
- a second dielectric portion sandwiched by the first internal electrode and another first internal electrode without the second internal electrode;
- the first dielectric portion, the second dielectric portion, and the third dielectric layers include a dielectric ceramic material;
- a second alloy portion is provided on the second external electrode side edge of the first internal electrode layer;
- and
- the second alloy portion and the second dielectric portion include a same metal element.
15 more elements
A multilayer body comprising:
- a first main surface and a second main surface on opposite sides in the stacking direction, a first side surface and a second side surface on opposite sides in a width direction orthogonal or substantially orthogonal to the stacking direction, and a first end surface and a second end surface on opposite sides in a length direction orthogonal or substantially orthogonal to the stacking direction and the width direction;
- wherein
- an external electrode is provided on the multilayer body;
- the multilayer body includes:
- an inner layer portion;
- outer layer portions sandwiching the inner layer portion in the stacking direction;
- and
- third dielectric layers sandwiching the inner layer portion and the outer layer portions in the width direction;
- the inner layer portion includes:
- a first internal electrode layer extending to the first end surface;
- a second internal electrode layer extending to the second end surface;
- a first dielectric portion sandwiched by the first internal electrode and the second internal electrode;
- and
- a second dielectric portion sandwiched by the first internal electrode and another first internal electrode without the second internal electrode;
- the first dielectric portion, the second dielectric portion, and the third dielectric layers include a dielectric ceramic material;
- a third alloy portion is provided on the first side surface edge of the first internal electrode layer;
- and
- the third alloy portion and the third dielectric layer include a same metal element.
15 more elements
Dependencies are inferred from the claim text.