Definition

FaradFlex is a high-capacitance laminate material manufactured by Oak-Mitsui for embedded capacitance applications. It features thin, high-Dk dielectric (typically 12-24 µm with Dk ~8-16) between copper planes, providing capacitance densities of 0.5-4 nF/cm². FaradFlex layers are laminated into the stackup between power and ground planes, creating distributed capacitance for power supply decoupling. This reduces or eliminates discrete decoupling capacitors at high frequencies where surface-mount caps become ineffective.