US 12,347,619 B2
Multilayer capacitor having internal electrode with double bottleneck structure
Jong Ho Lee, Suwon-si (KR); Myung Chan Son, Suwon-si (KR); Sim Chung Kang, Suwon-si (KR); Eun Jin Shim, Suwon-si (KR); Sun Hwa Kim, Suwon-si (KR); and Byung Soo Kim, Suwon-si (KR)
Assigned to SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed on Jan. 10, 2024, as Appl. No. 18/409,452.
Application 18/409,452 is a continuation of application No. 17/205,274, filed on Mar. 18, 2021, granted, now 11,908,623.
Claims priority of application No. 10-2020-0131113 (KR), filed on Oct. 12, 2020.
Prior Publication US 2024/0145167 A1, May 2, 2024
Int. Cl. H01G 4/005 (2006.01); H01G 4/232 (2006.01); H01G 4/248 (2006.01); H01G 4/30 (2006.01)
CPC H01G 4/005 (2013.01) [H01G 4/232 (2013.01); H01G 4/248 (2013.01); H01G 4/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multilayer capacitor comprising:
a body including a multilayer structure of a plurality of dielectric layers and a plurality of internal electrodes stacked with the dielectric layers interposed therebetween; and
external electrodes disposed on an external surface of the body and connected to the internal electrodes,
wherein the body includes a first surface and a second surface to which the plurality of internal electrodes are exposed, the first surface and the second surface opposing each other in a first direction, a third surface and a fourth surface opposing each other in a second direction which is a direction in which the plurality of dielectric layers are stacked, and a fifth surface and a sixth surface opposing each other in a third direction crossing the first and second directions,
at least one of the plurality of internal electrodes includes a first bottleneck structure, a second bottleneck structure and a connection part connecting the first and second bottleneck structures,
a first directional length of a third directional outer region of the first bottleneck structure is smaller than a first directional length of an inner region of the first bottleneck structure,
a third directional length of a first directional outer region of the second bottleneck structure is smaller than a third directional length of an inner region of the second bottleneck structure,
the outer region of the second bottleneck structure is connected to one of the external electrodes,
a third directional length of the connection part is greater than the third directional length of the outer region of the second bottleneck structure and is smaller than a third directional length of a central part of the first bottleneck structure in the first direction,
a first directional center of the connection part is spaced apart from the inner region of the first bottleneck structure in the first direction, and
the outer region of the first bottleneck structure is spaced apart from the fifth and sixth surfaces in the third direction.