According to Semiconductor Insight, the global FR4 printed circuit board market is valued at USD 12.36 billion in 2025 and is projected to reach USD 19.01 billion by 2034, expanding at a 4.9% CAGR during 2026–2034. The 2026 market level is estimated at USD 12.96 billion. FR4 printed circuit boards are built on epoxy-glass laminate and form the mainstream electrical and mechanical backbone...