Multi-layer ceramic capacitor
AssigneeTaiyo Yuden Co., Ltd.
InventorsKoichiro Morita, Tetsuo Shimura, Kunihiko Nagaoka
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Abstract
A multi-layer ceramic capacitor has a structure where its dielectric layers are constituted by a sintered compact that contains a mol of ReO3/2, b mol of SiO2, c mol of MOx, d mol of ZrO2, and e mol of MgO (where Re is a rare earth element, M is a metal element (except for Ba, Ti, Re, Si, Zr, Mg, and rare earth elements), and x is a valance) per 100 mol of BaTiO3, and a, b, c, d, and e mentioned above which indicate the mol numbers of respective constituents per 100 mol of BaTiO3 are 0.1≦a≦1.0, 0.1≦b≦1.5, 0.1≦c≦0.4, 0≦d≦1.0, and 0≦e≦0.03, respectively.
Claims18
A multi-layer ceramic capacitor that contains a laminate constituted by dielectric layers and internal electrode layers alternately layered with one another, as well as cover layers formed as outermost layers at a top and bottom of the laminate in a layering direction, wherein:
- the dielectric layers are constituted by a sintered compact that contains a mol of ReO3/2, b mol of SiO2, c mol of MOx, d mol of ZrO2, and e mol of MgO (where Re is a rare earth element, M is a metal element (except for Ba, Ti, Si, Zr, Mg and rare earth elements), and x is a valance) per 100 mol of BaTiO3;
- and
- a, b, c, d, and e mentioned above which indicate mol numbers of respective constituents per 100 mol of BaTiO3 are as follows:
- 0.1≦a≦1.0,
- 0.1≦b≦1.5,
- 0.1≦c≦0.4,
- 0≦d≦1.0, and
- 0≦e≦0.03.
Dependencies are inferred from the claim text.