EN 61189-2-721:2015 电气材料、印制板和其他互连结构和组件的测试方法 第 2-721 部分：互连结构材料的测试方法 覆铜板的相对介电常数和损耗角正切的测量
Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2-721: Test methods for materials for interconnection structures - Measurement of relative permittivity and loss tangent for copper clad lamin
IEC 61189-2-721:2015 outlines a way to determine the relative permittivity and loss tangent (also called dielectric constant and dissipation factor) of copper clad laminates at mic...