公开(公告)号：US20240331948A1

公开(公告)日：2024-10-03

申请号：US18735641

申请日：2024-06-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shunsuke AKIBA ,  Tomomichi ICHIKAWA ,  Yumie KAWASAKI ,  Kazuto YAMAZAKI

IPC: H01G4/32 ,  G01N23/22 ,  H01G4/18

CPC classification number: H01G4/32 ,  G01N23/22 ,  H01G4/18

Abstract: A film capacitor that includes: a dielectric resin film having a first surface and a second surface opposite each other; a first metal layer on the first surface; and a second metal layer on the second surface, wherein in a mapping image of nitrogen atoms observed by energy dispersive X-ray spectroscopy in a section of the dielectric resin film along a thickness direction of the dielectric resin film, a ratio of an area of nitrogen atom aggregation regions to an entire observation area is 35% or less.