US 12,119,178 B2
Multilayer ceramic capacitor
Masahiro Kasahara, Nagaokakyo (JP); Ryota Karaya, Nagaokakyo (JP); and Jun Kotani, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Sep. 19, 2022, as Appl. No. 17/947,214.
Claims priority of application No. 2021-155321 (JP), filed on Sep. 24, 2021.
Prior Publication US 2023/0094270 A1, Mar. 30, 2023
Int. Cl. H01G 4/012 (2006.01); H01G 4/232 (2006.01); H01G 4/30 (2006.01)
CPC H01G 4/012 (2013.01) [H01G 4/232 (2013.01); H01G 4/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multilayer ceramic capacitor comprising:
a body including dielectric ceramic layers and internal electrode layers; and
an external electrode; wherein
the body includes:
a capacitance generating portion at which the dielectric ceramic layers and the internal electrode layers are alternately stacked in a thickness direction;
a main surface covering portion on a main surface of the capacitance generating portion in the thickness direction;
a side surface covering portion on a side surface of the capacitance generating portion in a width direction perpendicular or substantially perpendicular to the thickness direction; and
an end surface covering portion on an end surface of the capacitance generating portion in a length direction perpendicular or substantially perpendicular to the thickness direction and the width direction;
each of the internal electrode layers includes an exposed portion exposed at the end surface of the capacitance generating portion;
the end surface covering portion is on the end surface of the capacitance generating portion and partially covers the exposed portion of each internal electrode layer;
the external electrode is connected to the internal electrode layers and covers the end surface covering portion and a portion of the exposed portion of each internal electrode layer, the portion of the exposed portion not being covered by the end surface covering portion;
the external electrode directly covers the main surface covering portion in the thickness direction; and
the end surface covering portion does not cover the main surface covering portion in the thickness direction.