Flexible dielectric film and method for making

Details Flexible dielectric film and method for making Flexible dielectric film and method for making

2006-01-09

2008-12-02

Pert, Evan (Department: 2826)

Electricity: electrical systems and devices

Electrostatic capacitors

With protection or compensating means

C361S301500, C029S025410, C029S025420, C428S409000

Reexamination Certificate

active

07460352

ABSTRACT:
Flexible films or sheets for forming high-breakdown strength, high-temperature capacitors are disclosed. Amorphous metal oxides and nitrides, preferably SiO2or HfO2, with a dielectric constant (k) greater than 2 and stacks of oxides and nitrides formed over conducting substrates may be formed. The dielectrics may be formed by reactive sputter deposition of the amorphous materials onto cooled substrates. The cooled substrate allows the films to be amorphous or nanocrystalline and results in films that can be flexed and that can be rolled into cylindrical shapes. An important application for these dielectrics is in high energy-density wound capacitors.

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