US 12,322,555 B2
Multilayer capacitor having internal electrodes including an alloy
Soo Jeong Jo, Suwon-si (KR); Dae Hee Lee, Suwon-si (KR); Hyo Jin Kim, Suwon-si (KR); and Jong Ho Lee, 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 Nov. 29, 2022, as Appl. No. 18/071,205.
Claims priority of application No. 10-2021-0188006 (KR), filed on Dec. 27, 2021.
Prior Publication US 2023/0207217 A1, Jun. 29, 2023
Int. Cl. H01G 4/30 (2006.01); H01G 4/008 (2006.01); H01G 4/012 (2006.01); H01G 4/12 (2006.01); H01G 4/232 (2006.01)
CPC H01G 4/30 (2013.01) [H01G 4/008 (2013.01); H01G 4/012 (2013.01); H01G 4/12 (2013.01); H01G 4/2325 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A multilayer capacitor comprising:
a body including a dielectric layer and a plurality of internal electrodes stacked with the dielectric layer interposed therebetween and including a first conductive metal; and
external electrodes disposed on an external surface of the body and including a second conductive metal,
wherein a ratio of internal electrodes including an alloy region of the first and second conductive metals to the plurality of internal electrodes is 40 to 80%,
wherein a detection intensity of the second conductive metal of the alloy region by electron probe micro analysis (EPMA) is 40% or more of a detection intensity of the second conductive metal of the external electrodes by EPMA, and
wherein the plurality of internal electrodes includes 400 or more layers of internal electrodes.