Prepreg PCB: The Backbone of Modern Electronics Manufacturing
Introduction to Prepreg PCB Materials Prepreg, short for “pre-impregnated,” is a fundamental material in the manufacturing of printed circuit boards (PCBs). This composite material consists of a reinforcement fabric (typically glass fiber) pre-impregnated with a resin system (usually epoxy) that is partially cured to an intermediate stage called the B-stage. Prepreg serves as the insulating…














