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Technical Guide
March 10, 20256 min read

Understanding PCB Assembly: A Comprehensive Guide

Learn about the different types of PCB assembly processes, from surface mount technology to through-hole assembly, and when to use each method.

By Michael Chen

PCB Assembly Specialist with expertise in SMT and through-hole technologies

Understanding PCB Assembly: A Comprehensive Guide

What is PCB Assembly?

PCB assembly is the process of soldering electronic components onto a printed circuit board. It's a critical step in electronics manufacturing that determines the quality and functionality of the final product.

Surface Mount Technology (SMT)

SMT is the most common assembly method used today. Components are placed directly onto the surface of the PCB and soldered using reflow ovens.

Through-Hole Assembly

Through-hole assembly involves inserting component leads through holes in the PCB and soldering them on the opposite side. This method is still used for certain components.

Mixed Assembly

Many modern PCBs use a combination of both SMT and through-hole assembly to optimize performance and cost.

Quality Assurance

Rigorous testing and inspection ensure that assembled PCBs meet quality standards and function as intended.

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