US 11,929,211 B2
Multi-layer capacitor
Thorsten Bayer, Deutschlandsberg (AT); and Michael Schossmann, Frauental a.d. Lasnitz (AT)
Assigned to TDK Electronics AG, Munich (DE)
Appl. No. 17/638,696
Filed by TDK Electronics AG, Munich (DE)
PCT Filed Jul. 15, 2021, PCT No. PCT/EP2021/069757
§ 371(c)(1), (2) Date Feb. 25, 2022,
PCT Pub. No. WO2022/013352, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 10 2020 118 857.9 (DE), filed on Jul. 16, 2020.
Prior Publication US 2022/0336153 A1, Oct. 20, 2022
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); H01G 4/38 (2006.01)
CPC H01G 4/30 (2013.01) [H01G 4/0085 (2013.01); H01G 4/012 (2013.01); H01G 4/1227 (2013.01); H01G 4/1245 (2013.01); H01G 4/2325 (2013.01); H01G 4/38 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A multilayer capacitor comprising a capacitor element having at least two segments, each segment comprising a plurality of layer planes including dielectric layers of ceramics and electrode layers disposed therebetween and stacked in a stacking direction, the electrode layers comprising at least three different types of electrode layers including a first electrode layer wherein first and second electrodes are formed opposite to each other and are spaced apart by one of the dielectric layers, a second electrode layer wherein only first electrodes are formed, and a third electrode layer wherein only second electrodes are formed, the first electrode layers forming outermost electrode layers of each of the at least two segments in the stacking direction, the first and second electrodes overlapping in active regions and not overlapping in passive regions;
wherein the at least two segments are superimposed in the stacking direction;
wherein outermost dielectric layers of the at least two segments form a connection region in which the at least two segments are firmly connected to each other parallel to the layer planes;
wherein the connection region includes a relief region; and
wherein the relief region occupies at least the entire passive region of the capacitor.