Back to results
US 10,304,629 B2Granted
Multilayer ceramic capacitor
AssigneeTaiyo Yuden Co., Ltd.
InventorsShohei Kitamura, Kotaro Mizuno
Life of this patent
Estimating the term…
Abstract
In an embodiment, a multilayer ceramic capacitor 10 has a first metal layer 14 having many holes 14a, and a second metal layer 15 having many holes 15a, with a clearance CL provided in between in the length direction, on the other height-direction side face of the capacitor body; the first metal layer 14 is partially covered by a third part 12c of a first external electrode 12, while the remainder is exposed; and the second metal layer 15 is partially covered by a third part 13c of a second external electrode 13, while the remainder is exposed. The multilayer ceramic capacitor can have excellent heat dissipation property.
Claims14
A multilayer ceramic capacitor comprising:
- (1) 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;
- (2) a first external electrode which continuously has, at least, a first part present on one length-direction side face of the capacitor body and a second part wrapping around onto one height-direction side face of the capacitor body, and to which some of the multiple internal electrode layers are connected;
- and
- (3) a second external electrode which continuously has, at least, a first part present on another length-direction side face of the capacitor body and a second part wrapping around onto the one height-direction side face of the capacitor body, and to which the remaining multiple internal electrode layers are connected;
- wherein:
- a first metal layer having many hollow holes penetrating into or through the first metal layer in a thickness direction, and a second metal layer having many hollow holes penetrating into or through the second metal layer in a thickness direction, are provided, with a clearance in between in the length direction, on at least another height-direction side face of the capacitor body;
- the first metal layer is in contact with the first external electrode, while the second metal layer is in contact with the second external electrode;
- and
- the first metal layer and the second metal layer, including the respective hollow holes, are each exposed at least partially to an exterior of the multilayer ceramic capacitor as viewed from the height direction.
6 more elements
A multilayer ceramic capacitor comprising:
- (1) 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;
- (2) a first external electrode which continuously has, at least, a first part present on one length-direction side face of the capacitor body and a second part wrapping around onto one height-direction side face of the capacitor body, and to which some of the multiple internal electrode layers are connected;
- and
- (3) a second external electrode which continuously has, at least, a first part present on another length-direction side face of the capacitor body and a second part wrapping around onto the one height-direction side face of the capacitor body, and to which the remaining multiple internal electrode layers are connected;
- wherein:
- a first metal layer having many through holes, and a second metal layer having many through holes, are provided, with a clearance in between in the length direction, on at least another height-direction side face of the capacitor body;
- the first metal layer is in contact with the first external electrode, while the second metal layer is in contact with the second external electrode;
- and
- the first metal layer and the second metal layer are each exposed at least partially as viewed from an orthogonal direction,
- wherein:
- the first metal layer and the second metal layer are provided only on the other height-direction side face of the capacitor body,
- the first external electrode continuously has the first part present on the one length-direction side face of the capacitor body and the second part wrapping around onto the one height-direction side face of the capacitor body;
- the second external electrode continuously has the first part present on the other length-direction side face of the capacitor body and the second part wrapping around onto the one height-direction side face of the capacitor body;
- and
- the first metal layer and the second metal layer are each entirely exposed as viewed from the orthogonal direction.
12 more elements
A multilayer ceramic capacitor comprising:
- (1) 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;
- (2) a first external electrode which continuously has, at least, a first part present on one length-direction side face of the capacitor body and a second part wrapping around onto one height-direction side face of the capacitor body, and to which some of the multiple internal electrode layers are connected;
- and
- (3) a second external electrode which continuously has, at least, a first part present on another length-direction side face of the capacitor body and a second part wrapping around onto the one height-direction side face of the capacitor body, and to which the remaining multiple internal electrode layers are connected;
- wherein:
- a first metal layer having many through holes, and a second metal layer having many through holes, are provided, with a clearance in between in the length direction, on at least another height-direction side face of the capacitor body;
- the first metal layer is in contact with the first external electrode, while the second metal layer is in contact with the second external electrode;
- and
- the first metal layer and the second metal layer are each exposed at least partially as viewed from an orthogonal direction,
- wherein the first metal layer and the second metal layer are provided not only on the other height-direction side face but also the one height-direction side face of the capacitor body.
7 more elements
Dependencies are inferred from the claim text.