This comprehensive guide explores PCT testing’s critical role in electronics manufacturing, covering its principles, equipment, and applications across industries. Learn how PCT evaluates moisture resistance in PCBs, prevents semiconductor failures like popcorn effect, and accelerates life testing. Compare PCT with AOI/ICT/FCT methods, understand key testing parameters (121°C/100%RH/2atm), and discover how it reduces development cycles while improving product reliability in automotive, medical, and aerospace applications.