What is a blind via?
Blind vias save space in dense PCBs by connecting outer to inner layers selectively. Essential for HDI designs like smartphones, they optimize routing & thermal management, but increase cost 15-30%. Combines with microvias.
What are the most common PCBA testing methods?
PCBA testing (AOI, ICT, FCT) catches defects early, prevents recalls & saves costs. Choose methods by risk, budget & volume. Systematically debug failures to protect reputation & profits.
