Why is FR4 the material of choice for most PCBs?

FR4 PCB material balances cost, durability & fire safety. Crucial to know Tg for heat resistance and key design rules to avoid failures like delamination or warping.
What is the difference between aluminum and FR-4 PCB?

Aluminum PCBs excel in heat management for LEDs/power systems. FR-4 suits complex circuits without extreme heat. Choose correctly to avoid failures and extend project life.