US 12,014,880 B2
Multilayered capacitor and board having the same mounted thereon
Yong Park, Suwon-si (KR); Jong Ho Lee, Suwon-si (KR); Woo Chul Shin, Suwon-si (KR); and Ki Pyo Hong, 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. 3, 2022, as Appl. No. 17/979,919.
Application 17/979,919 is a continuation of application No. 16/831,272, filed on Mar. 26, 2020, abandoned.
Claims priority of application No. 10-2019-0082983 (KR), filed on Jul. 10, 2019.
Prior Publication US 2023/0046899 A1, Feb. 16, 2023
Int. Cl. H01G 4/30 (2006.01); H01G 2/02 (2006.01); H01G 4/012 (2006.01); H01G 4/12 (2006.01)
CPC H01G 4/30 (2013.01) [H01G 2/02 (2013.01); H01G 4/012 (2013.01); H01G 4/1209 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A multilayer capacitor, comprising:
a capacitor body including a dielectric layer, and having a first surface and a second surface, opposing each other, a third surface and a fourth surface, connecting the first surface to the second surface and opposing each other, and a fifth surface and a sixth surface, connected to the first, second, third and fourth surfaces and opposing each other;
a plurality of internal electrodes disposed inside the capacitor body, exposed to the fifth surface and the sixth surface, and having one ends exposed to the third surface or the fourth surface;
first and second external electrodes disposed on the third surface and the fourth surface of the capacitor body, respectively; and
a first side portion and a second side portion disposed on end portions of the internal electrode, exposed to the fifth surface and the sixth surface, respectively,
wherein the first and second side portions are each divided into an inner layer formed to be adjacent to the capacitor body, and an outer layer formed on the inner layer, and a dielectric constant of the inner layer is lower than a dielectric constant of the outer layer and a dielectric constant of the dielectric layer,
the inner layer is extended to the second surface from the first surface and extended to the fourth surface from the third surface, and the inner layer separates the capacitor body and the outer layer,
wherein the first and second side portions are provided with a ratio of a dielectric constant of the inner layer to a dielectric constant of the outer layer equal to or less than 0.5, and
wherein average thicknesses of the first and second side portions each is equal to or less than 10 μm.