US 11,798,748 B2
Multi-layer ceramic electronic component and method of producing the same
Ryo Ono, Takasaki (JP); Tetsuhiko Fukuoka, Takasaki (JP); Shoji Kusumoto, Takasaki (JP); and Akihiko Kono, Takasaki (JP)
Assigned to TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed by TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed on Mar. 15, 2023, as Appl. No. 18/184,583.
Application 18/184,583 is a continuation of application No. 17/498,558, filed on Oct. 11, 2021, granted, now 11,631,543.
Application 17/498,558 is a continuation of application No. 16/711,210, filed on Dec. 11, 2019, granted, now 11,177,071, issued on Nov. 16, 2021.
Claims priority of application No. 2018-238087 (JP), filed on Dec. 20, 2018.
Prior Publication US 2023/0223199 A1, Jul. 13, 2023
Int. Cl. H01G 4/30 (2006.01); H01G 4/12 (2006.01); H01G 4/248 (2006.01); H01G 4/012 (2006.01); H01G 2/08 (2006.01); H01G 4/008 (2006.01)
CPC H01G 4/30 (2013.01) [H01G 2/08 (2013.01); H01G 4/012 (2013.01); H01G 4/1227 (2013.01); H01G 4/248 (2013.01); H01G 4/008 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A multi-layer ceramic electronic component, comprising:
a ceramic body including
a protective portion including
an end surface facing in a first direction,
circumferential surfaces connected to the end surface and extending in the first direction, and
a ridge that includes a recess and an outer edge and connects the circumferential surfaces, the recess extending along the first direction, the outer edge including an edge, the edge being formed at the outer edge and bulging outward, and
a functional portion disposed inside the protective portion, and including internal electrodes laminated in a second direction orthogonal to the first direction; and
an external electrode including
a base film covering the end surface,
an intermediate film formed on the base film, and
a surface film formed on the intermediate film,
wherein the base film includes
a first covering portion formed on the end surface,
second covering portions formed on the respective circumferential surfaces, and
a third covering portion formed on the recess and spaced apart from at least one of the second covering portions at the edge,
the intermediate film continuously covers the first covering portion, the second covering portions, and the third covering portion, and
the recess is disposed outside end portions of the plurality of internal electrodes in a third direction orthogonal to the first direction and the second direction.