DK/DF measurement is the process used to determine the dielectric constant (DK) and dissipation coefficient (DF) of the material. DK is a measure of the ability of a material to store electrical energy in an electric field, while DF is a measure of the ability of a material as a heat dissipated electric energy.(Arumugam & Harikrishnan, 2017).

Surface resistance and surface resistivity are two important electrical properties of a material that describe its ability to conduct electricity. While they may sound similar, they measure different aspects of a material's electrical conductivity.