Coated polymer dielectric film
Present invention provides a film and an article including the film. The film includes first layer, second layer and third layer. The first layer includes a polymer dielectric material. The second layer is disposed on at least one surface of the first layer and includes inorganic oxide dielectric material. The third layer is disposed on the first or second layer and includes a nitride or oxynitride material.
1. A film comprising:
a first layer comprising a cyano-modified polyetherimide as a polymer dielectric material;
a second layer comprising an inorganic oxide dielectric material disposed on at least one surface of the first layer; and
a third layer comprising silicon nitride, silicon oxynitride, aluminum nitride, or a combination thereof, disposed on the first or second layer.
2. The film of claim 1 , wherein the cyano-modified polyetherimide comprises structural units derived from a cyanobisphenol monomer.
3. The film of claim 1 , wherein the thickness of the first layer is in the range from about 0.05 micron to about 20 microns.
4. The film of claim 1 , wherein the thickness of the first layer is in the range from about 20 microns to about 500 microns.
5. The film of claim 1 , wherein the inorganic oxide dielectric material of the second layer comprises silicon dioxide, aluminum oxide, tantalum oxide, zirconium oxide, or mixtures thereof.
6. The film of claim 5 , wherein the inorganic oxide dielectric material is silicon dioxide.
7. The film of claim 5 , wherein the thickness of the second layer is in the range from about 1 nm to about 500 nm.
8. The film of claim 1 , wherein the third layer comprises silicon nitride.
9. The film of claim 1 , wherein the thermal conductivity of the film is greater than 0.3 W/mK.
10. The film of claim 1 , wherein the film is operational at a temperature range from about −50 degree Celcius to about 220 degree Celcius.
11. The film of claim 1 , wherein the film has a breakdown strength of up to about 800 kV/mm.
12. The film of claim 1 , wherein the second layer is disposed on the opposing surfaces of the first layer.
13. A film comprising:
a first layer having first and second surface and comprising a polyetherimide composition;
a second layer comprising silicon dioxide, disposed on the first surface of the first layer; and
a third layer comprising silicon nitride disposed on the second surface of the first layer,
wherein the polyetherimide comprises structural units derived from a cyanobisphenol monomer.
14. The film of claim 13 , wherein the film further comprises silicon nitride disposed on the silicon dioxide layer.
15. An electronic article comprising:
a film comprising:
a first layer comprising a polyetherimide composition;
a second layer comprising silicon dioxide disposed on at least one surface of the first layer; and
a third layer comprising silicon nitride and disposed on the first or second layer,
wherein the polyetherimide comprises structural units derived from a cyanobisphenol monomer.