How to Use a Multimeter for PCB/PCBA: A Complete Guide for Engineers & Buyers
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 Q
What Is a Gerber File? — Complete Guide for PCB / PCBA Professionals
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/PC
Engineer’s Perspective — Selecting & Applying Circuit Board Components for Performance & Reliability
Introduction – Why Circuit Board Components Define PCB Performance & Supply Chain Value A bare PCB (printed circuit board) offers only the structural substrate — copper tra
QFN Package with Lid: Definition, Types, Thermal Performance & How to Choose the Right PCBA Supplier
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 eval
Leaded Solder vs Lead-Free Solder: What They Are & 6 Practical Ways to Distinguish Them
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
