US 11,776,748 B2
Dielectric ceramic composition and multilayer ceramic capacitor comprising the same
Hyoung Uk Kim, Suwon-si (KR); Seung In Baik, Suwon-si (KR); Hyung Soon Kwon, Suwon-si (KR); and Ji Hong Jo, 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 Dec. 2, 2021, as Appl. No. 17/540,641.
Application 17/540,641 is a continuation of application No. 16/803,779, filed on Feb. 27, 2020, granted, now 11,222,749.
Claims priority of application No. 10-2019-0070784 (KR), filed on Jun. 14, 2019.
Prior Publication US 2022/0093335 A1, Mar. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 35/468 (2006.01); H01G 4/12 (2006.01); H01G 4/012 (2006.01); H01G 4/248 (2006.01); H01G 4/30 (2006.01)
CPC H01G 4/1227 (2013.01) [C04B 35/4682 (2013.01); H01G 4/012 (2013.01); H01G 4/248 (2013.01); H01G 4/30 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multilayer ceramic capacitor, comprising:
a ceramic body comprising dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and
a first external electrode and a second external electrode disposed on external surfaces of the ceramic body, the first external electrode being connected to the first internal electrode and the second external electrode being connected to the second internal electrode,
wherein the dielectric layers comprise dielectric grains comprising a dielectric ceramic composition,
the dielectric ceramic composition comprises a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient,
the accessory ingredient comprising dysprosium (Dy) and niobium (Nb) as first accessory ingredients,
wherein a total content of the Dy and Nb is greater than 0.2 mol and less than or equal to 1.5 mol based on 100 mol of titanium (Ti) of the barium titanate-based base material main ingredient, and
wherein a thickness of at least one of the dielectric layers is 0.4 μm or less.