Learn how to use a multimeter correctly and safely to test voltage, resistance, continuity and current — essential skills for PCB/PCBA inspection, fault-finding, and production QA. Understand key multimeter functions,…

Discover what a gerber file is, why it is the universal “language” for PCB manufacturing, how to generate and validate PCB Gerber files correctly, and what key data your PCB/PCBA…

Introduction – Why Circuit Board Components Define PCB Performance & Supply Chain Value A bare PCB (printed circuit board) offers only the structural substrate — copper traces, vias, solder mask,…

Discover what a QFN package with lid really means — its structure, advantages, thermal and electrical performance, and key types (plastic, ceramic, air-cavity). Learn how to evaluate and choose a…

Learn the difference between leaded solder and lead-free solder material, including their compositions, melting points, and how to tell them apart — essential for RoHS-compliant PCB/PCBA manufacturing.