FR4 vs Polyimide for Aerospace PCBs: Material Comparison
In aerospace electronics, PCB material choice impacts thermal performance, reliability, stability, and long-term durability. The most common options are FR4 and polyimide, and the right selection depends on the application and environment. FR4 is widely used for rigid PCBs due to its good balance of performance, strength, and cost. Polyimide is preferred for flexible and