diffusion barrier

A diffusion barrier is a protective layer designed to prevent or slow the movement of atoms, ions, or molecules from one material to another. It acts like a guardrail, controlling the transfer to protect components from corrosion, contamination, or degradation. This is crucial in applications such as electronics, where it helps keep certain materials isolated to improve performance and lifespan. Essentially, a diffusion barrier ensures that substances stay in their designated areas, maintaining the integrity and functionality of the system.