2022-03-082022-03-082006https://publica.fraunhofer.de/handle/publica/307439DE 202006014614 U1 UPAB: 20070313 NOVELTY - The device has a substrate and a polymer semiconductor layer on the substrate. A number of conductive strips (11) and polymer semiconductor switching units (12a-12d) are formed in the semiconductor layer and are connected with the layer for a switchable connection of the strips. The units have transistors implemented using polymer-material and polymer-semiconductor diodes that are connected with the strips. USE - Used for shielding electromagnetic radiation e.g. unwanted hearing in mobile telephone and disturbance of highly sensitive electronic device, in a conference room, laboratory and production plant. ADVANTAGE - The semiconductor switching units are formed in the semiconductor layer and are connected with the layer for a switchable connection of conductive strips, thus enabling controlling of electromagnetic fields.de621patent202006014614