US 11,721,489 B2
Multilayer ceramic capacitor
Dong Joon Oh, Suwon-si (KR); Tae Joon Park, Suwon-si (KR); Sang Wook Lee, Suwon-si (KR); Sung Min Cho, Suwon-si (KR); and Seung Mo Lim, 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 Apr. 14, 2021, as Appl. No. 17/230,430.
Application 17/230,430 is a continuation of application No. 15/975,198, filed on May 9, 2018, granted, now 11,011,313.
Claims priority of application No. 10-2017-0087595 (KR), filed on Jul. 11, 2017; and application No. 10-2017-0128094 (KR), filed on Sep. 29, 2017.
Prior Publication US 2021/0233716 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01G 4/30 (2006.01); H01G 4/232 (2006.01); H01G 4/12 (2006.01)
CPC H01G 4/30 (2013.01) [H01G 4/2325 (2013.01); H01G 4/12 (2013.01); H01G 4/1227 (2013.01); H01G 4/1245 (2013.01); H01G 4/232 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A multilayer ceramic capacitor comprising:
a body having first and second surfaces opposing each other, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other, the body including a dielectric layer and internal electrodes disposed to be alternately exposed to the third and fourth surfaces with the dielectric layer interposed therebetween; and
first and second external electrodes including connection parts respectively disposed on the third and fourth surfaces of the body, band parts disposed to extend from a respective connection part to portions of the first, second, fifth, and sixth surfaces of the body, and corner parts in which the connection parts and the band parts are contiguous,
wherein a thickness of each of the external electrodes is 50 nm to 2 μm and when a thickness of each of the connection parts is defined as t1, a thickness of each of the band parts is defined as t2, and a thickness of each of the corner parts is defined as t3, t2/t1 satisfies 0.7 to 1.2, and t3/t1 satisfies 0.7 to 1.0,
the external electrodes include a first electrode layer in contact with the body and a second electrode layer disposed on the first electrode layer,
the first electrode layer includes at least one of Cr, NiCr, TiW, TiN, or TaN, and
the second electrode layer includes Al.