Pufferschicht

A Pufferschicht, often translated as buffer layer, is a functional layer in a multilayered material or system. Its primary purpose is to mitigate or control the effects of adjacent layers, preventing undesirable interactions or facilitating a desired outcome. In many contexts, a Pufferschicht serves as an intermediary, absorbing mechanical stress, electrical interference, or chemical reactivity.

For instance, in semiconductor manufacturing, a Pufferschicht can be deposited between the substrate and the active semiconductor material. This layer can help relieve strain caused by lattice mismatches between materials, improving the quality and performance of the device. It can also prevent diffusion of unwanted elements from the substrate into the active layer.

In coatings and films, a Pufferschicht can enhance adhesion between different materials, such as a primer layer in paint systems. It can also provide a protective barrier, isolating sensitive layers from environmental factors like moisture or oxidation. The specific composition and properties of a Pufferschicht are tailored to the particular application and the characteristics of the layers it separates. Its presence is crucial for the overall integrity, stability, and functionality of the composite material or system.