The Impact of Surface Roughness on High Frequency PCB Fabrication QualityWhen engineers think about high-frequency PCB design, they typically focus on trace geometry, dielectric materials, and impedance calculations. These factors are undeniabl...

In high frequency PCB design, the dielectric material typically receives most of the attention. Engineers spend considerable effort evaluating loss tangent, dielectric constant, and thermal stability of substrate materials. Yet the copper foil—the ...