公开(公告)号：US20190237260A1

公开(公告)日：2019-08-01

申请号：US16063326

申请日：2016-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gunther A.J. STOLLWERCK ,  Mark GRAVERMANN ,  Jens WEICHOLD ,  Andreea SABO

IPC: H01G4/258 ,  H01G4/224 ,  H01G4/18 ,  H01G4/28 ,  H01G4/012 ,  H01G4/40 ,  G01R15/16

CPC classification number: H01G4/258 ,  G01R15/06 ,  G01R15/16 ,  H01G4/012 ,  H01G4/18 ,  H01G4/20 ,  H01G4/224 ,  H01G4/255 ,  H01G4/28 ,  H01G4/35 ,  H01G4/40

Abstract: A capacitor comprises an electrically conductive cylinder, an electrically conductive or semi-conductive cylindrical shell or shell segment arranged concentrically around the electrically conductive cylinder, and a dielectric arranged between the electrically conductive cylinder and the electrically conductive or semi-conductive cylindrical shell or shell segment. The dielectric comprises at least one dielectric layer having a positive thermal coefficient of relative permittivity, and at least one compensation dielectric layer having a negative thermal coefficient of relative permittivity. The thermal coefficient of relative permittivity is thereby selected such that the capacitance value of the capacitor is constant within a stability margin over a predefined temperature interval.