ENIG vs ENEPIG: Which PCB Surface Finish is Right for Your Application
ENIG (Electroless Nickel Immersion Gold) and ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold) are premium gold-based PCB surface finishes widely used in high-reliability electronics. The key difference lies in a single layer: ENEPIG adds palladium between nickel and gold. This palladium layer prevents nickel diffusion, enables aluminum wire bonding, and provides superior corrosion resistance compared […]
FR4 vs High Tg PCB: What’s the Difference and When to Choose Each
FR4 and high Tg PCB materials are the two most common substrate choices in electronics manufacturing. Standard FR4 has a glass transition temperature (Tg) of approximately 130-140°C, while high Tg materials range from 150°C to 180°C. This temperature difference matters significantly in lead-free soldering, high-temperature operating environments, and thick multilayer boards where thermal stress is […]