HIGH DIELECTRIC CONSTANT NANO-STRUCTURE POLYMER-CERAMIC COMPOSITE

摘要

The present invention is directed to polymer-ceramic composites having high dielectric constants formed using polymers containing a metal acetylacetonate (acacs) curing catalyst. In particular, it has been discovered that 5 weight percent Co(III) acac can increase the dielectric constant of DER661 epoxy by about 60 %. The high dielectric polymers are combined with fillers, preferably ceramic fillers, to form two phase composites having high dielectric constants. Composites having about 30 to about 90 % volume ceramic loading and a high dielectric base polymer, preferably epoxy, have been discovered to have a dielectric constants greater than about 74 to about 150. Also disclosed are embedded capacitors with capacitance densities of at least 25 nF/cm<2>, preferably at least 35 nF/cm<2>, most preferably 50 nF/cm<2>. Methods to increase the dielectric constant of the two phase composites having high dielectric constants are also provided.