Polymer Films Loaded with Inorganic and Organic Materials for Use as Capacitor Dielectrics

摘要

Methods and procedures of preparing suspensions and solutions of polycarbonate and polysulfone polymers and of loading these with barium titanate or selected organic compounds to form films of 0.1 to 4.5 mils thickness have been developed. The dielectric data reported include dielectric constants ranging from 5 to 400, dissipation factors of .0060 to .030, and voltage breakdown of 200 to 5400 V/mil. Of the films loaded with inorganic material, one containing 70% (by weight) of barium titanate appears to have the optimum dielectric properties. The maximum loading of the organic compounds was about 10% (by weight). The data reported indicate that these films have a potential application in miniaturized circuits. (Author)