Multilayer ceramic capacitor
AssigneeTaiyo Yuden Co., Ltd.
InventorTakashi Sasaki
Life of this patent
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Abstract
In an exemplary embodiment, each of external electrodes 12 of a multilayer ceramic capacitor 10 continuously has a first planar part 12a present on each end face of a capacitor body 11 in a first direction d1, a second planar part 12b present on one end face of the capacitor body 11 in a third direction d3, and auxiliary planar parts 12c present on both end faces of the capacitor body 11 in a second direction d2. A maximum third-direction dimension D3 [12c] of each of the auxiliary planar parts 12c is smaller than a third-direction dimension D3 [12a] of the first planar part 12a, while a first-direction dimension D1 [12c] of each of the auxiliary planar parts 12c is smaller than a first-direction dimension D1 [12b] of the second planar part 12b.
Claims9
A multilayer ceramic capacitor, comprising:
- a capacitor body of roughly rectangular solid shape which has a capacitive part constituted by multiple internal electrode layers stacked together with dielectric layers in between;
- a first external electrode which is provided at one of two opposing end parts of the capacitor body and to which some of the multiple internal electrode layers are connected;
- and
- a second external electrode which is provided at the other of two opposing end parts of the capacitor body and to which the remainder of the multiple internal electrode layers are connected;
- wherein, the multilayer ceramic capacitor is characterized in that, when, with respect to the capacitor body, the direction in which two opposing faces are facing each other represents a first direction, the direction in which other two opposing faces are facing each other represents a second direction, the direction in which the remaining two opposing faces are facing each other represents a third direction, and the dimensions along the respective directions represent a first-direction dimension, a second-direction dimension and a third-direction dimension, then:
- the first external electrode continuously has a first planar part present on one end face of the capacitor body in the first direction, a second planar part present on one end face of the capacitor body in the third direction, and auxiliary planar parts present on both end faces of the capacitor body in the second direction;
- the second external electrode continuously has a first planar part present on the other end face of the capacitor body in the first direction, a second planar part present on one end face of the capacitor body in the third direction, and auxiliary planar parts present on both end faces of the capacitor body in the second direction;
- a maximum third-direction dimension of each of the auxiliary planar parts of the first external electrode is smaller than the third-direction dimension of the first planar part of the first external electrode, while a maximum first-direction dimension of each of the auxiliary planar parts is smaller than a maximum first-direction dimension of the second planar part of the first external electrode;
- and
- a maximum third-direction dimension of each of the auxiliary planar parts of the second external electrode is smaller than the third-direction dimension of the first planar part of the second external electrode, while a maximum first-direction dimension of each of the auxiliary planar parts is smaller than a maximum first-direction dimension of the second planar part of the second external electrode.
Dependencies are inferred from the claim text.