US 11,749,463 B2
Capacitor and method for manufacturing the same
Yasuhiro Shimizu, Nagaokakyo (JP); and Masaki Nagata, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Mar. 3, 2022, as Appl. No. 17/653,392.
Application 17/653,392 is a continuation of application No. PCT/JP2020/016272, filed on Apr. 13, 2020.
Claims priority of application No. 2019-174347 (JP), filed on Sep. 25, 2019.
Prior Publication US 2022/0189702 A1, Jun. 16, 2022
Int. Cl. H01G 4/30 (2006.01); H01G 4/08 (2006.01)
CPC H01G 4/30 (2013.01) [H01G 4/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A capacitor comprising:
a first support portion;
a second support portion facing the first support portion with a distance therebetween;
a plurality of first conductive columnar portions supported by the first support portion and that extend along a first direction from the first support portion toward the second support portion, with each of the first conductive columnar portions having a nanosized outer diameter;
a first dielectric layer that coats each of the plurality of first conductive columnar portions;
a plurality of second conductive columnar portions supported by the second support portion and that extend along a second direction from the second support portion toward the first support portion, with each of the second conductive columnar portions having a nanosized outer diameter;
a second dielectric layer that coats each of the plurality of second conductive columnar portions; and
a conductive portion disposed on the first dielectric layer and facing at least a part of each of the plurality of first conductive columnar portions with the first dielectric layer interposed therebetween, and disposed on the second dielectric layer and facing at least a part of each of the plurality of second conductive columnar portions with the second dielectric layer interposed therebetween,
wherein a tip of each of the plurality of second conductive columnar portions is located closer to the first support portion than a tip of each of the plurality of first conductive columnar portions.