A ceramic substrate is an insulating material that provides a stable and rigid platform for mounting electronic components and creating electrical circuits. Ceramic substrates are often used as an alternative to epoxy-based materials like FR-4 (Flame Retardant 4). FR-4 is a popular substrate material for PCBs, but ceramic substrates offer certain advantages in specific applications.
Compared to traditional fiberglass boards, ceramic substrates offer superior mechanical strength, high-temperature resistance, and excellent thermal conductivity. In addition, ceramic substrates also exhibit excellent dimensional and chemical stability.