Definition

Copper Clad Laminate (CCL) is the starting material for PCB fabrication - a cured laminate sheet with copper foil bonded to one or both sides. CCL manufacturers (Isola, Rogers, Shengyi, ITEQ, Panasonic) supply materials with specific Dk, Df, Tg, and thermal properties. Quality and consistency of CCL directly affects PCB electrical performance and reliability. Standard FR-4 CCL costs $15-30/m²; high-speed and RF materials can exceed $200/m². Material selection balances electrical requirements, thermal needs, and cost. CCL is cut into panels, imaged, etched, and laminated into multilayer boards.