Progress of heat resistant dielectric polymer nanocomposites with high dielectric constant

Magneto-dielectric properties of polymer– Fe3O4 nanocomposites

The aim of this research is to elucidate the size effect of magnetic nanoparticles on the resultant magneto-dielectric properties of polymer nanocomposites at radio frequencies. The block copolymer of [styrene-b-ethylene/butylene-b-styrene] (SEBS) was utilized as a matrix for the templating of magnetic nanoparticles. Surfactant-modified iron oxide (Fe3O4) nanoparticles of various sizes were suc...

High dielectric constant oxides

The scaling of complementary metal oxide semiconductor (CMOS) transistors has led to the silicon dioxide layer used as a gate dielectric becoming so thin (1.4 nm) that its leakage current is too large. It is necessary to replace the SiO2 with a physically thicker layer of oxides of higher dielectric constant (κ) or ‘high K’ gate oxides such as hafnium oxide and hafnium silicate. Little was know...

On Materials of High Dielectric Constant.

* This work was supported by a grant from the National Science Foundation. 'Yarmolinsky, M. B., and G. L. de la Haba, these PROCEEDINGS, 45, 1721 (1959). 2 Nathans, D., and F. Lipmann, these PROCEEDINGS, 47, 497 (1961). 3Wecker, E., and E. Schonne, these PROCEEDINGS, 47, 278 (1961). 4 Wecker, E., and A. Richter, in Basic Mechanisms in Animal Virus Biology, Cold Spring Harbor Symposia on Quantit...

Dielectric Properties of Graphite Nanocomposites

Determination of Dielectric Constant

Introduction The dielectric constant of PCB material is important in determining the trace width required to produce a characteristic impedance of 50 ohms, or any other desired impedance. The most commonly used material, FR-4, has a dielectric constant that may vary widely between manufacturers or batches, and also varies over frequency. It is useful to have a method to determine the dielectric...