Patent ID: 11923145
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A multilayer capacitor comprising:
a body including a plurality of dielectric layers and a plurality of internal electrodes stacked with the dielectric layer interposed therebetween in a first direction; and
external electrodes formed outside the body and connected to the internal electrodes,
wherein the body includes an active portion in which the plurality of internal electrodes are located to form capacitance and a side margin portion covering a first surface and a second surface of the active portion facing each other in a second direction, and 1<A2/M1≤1.5 and A2<A1 in which A1 is an average grain size of dielectric layers, among the plurality of dielectric layers, in a central region of the active portion, A2 is an average grain size of the dielectric layers at an active boundary part of the active portion adjacent to the side margin portion, and M1 is an average grain size of the dielectric layers in a central region of the side margin portion, and
wherein, T is a length of the body in the first direction and WA is a length of the active portion in the second direction based on a cut surface taken in the first and second directions, A1 is an average size of grains present in a first rectangle which has a length of WA/3 in the second direction and a length of T/3 in the first direction, and the first rectangle is symmetrical, based on a central line of the active portion in the first direction and a central line of the active portion in the second direction.