Under atmospheric pressure, plasma can be produced even in very small volumes with dimensions of just a few micrometers so that the local functionalisation of surfaces is possible. Plasma printing is an innovative process for the local modification of surfaces: a structured dielectric forms cavities in which the plasma develops. The typical dimensions of the cavities are from a few tens to a few hundred μm. In addition to the position-specific modification of surfaces, this process also supports structured layer precipitation and functionalisation. Numerous functional groups can be impressed on the substrate, similar to a stamp, depending on the chosen to discharge conditions. Suitable substrates include polymers, glass and silicon. Surfaces with any geometries such as arrays of spots, with special surface characteristics such as hydrophilic or hydrophobic properties, or with targeted chemical functionalisation can be produced using the plasma printing process.