Category: Basics

Discover what solder mask is, how it protects PCBs, key design rules, material types, and common issues to avoid for reliable circuit board manufacturing.

Discover what a multi-chip module (MCM) is, how it works, and the key types—MCM-L, MCM-C, MCM-D, and MCM-Si—for faster, smaller, high-performance systems.

Discover how electronic packaging works—from chip-level to system-level integration. Learn the types, levels, and how PCBs connect electronic packages.

Discover 7 main PCB types — from single-sided to rigid-flex and backplanes. Learn their structures, materials, and real-world applications.

Learn what an eFuse (electronic fuse) is, how it works, and why it outperforms glass fuses and Polyfuse. Includes selection tips and key PCB applications.

What Is Flux in Soldering—learn what it’s made of, how it works, and why it’s essential for clean, strong solder joints in electronics and PCB assembly.

Discover what a QFN package is, its types and structure, when to use a QFN with lid, and step-by-step tips on how to solder QFN packages perfectly.

Discover what a counterbore is, how it differs from a countersink, and when to use each. Learn key design tips, symbols, and common mistakes to avoid.