Difusioonitõke
A difusioonitõke, often translated as a diffusion barrier, is a material or a thin layer that restricts or prevents the movement of atoms or molecules from one place to another. This movement, known as diffusion, can occur in solids, liquids, or gases. Diffusion barriers are crucial in various technological applications where controlling the migration of substances is essential for performance and longevity.
In microelectronics, diffusion barriers are used to prevent unwanted diffusion of metal atoms, such as copper,
In metallurgy, diffusion barriers can be applied to coatings or interfaces to prevent the intermixing of different
In packaging, diffusion barriers are employed to prevent the permeation of gases or moisture through packaging
The effectiveness of a diffusion barrier is often measured by its permeability, which indicates how easily