DünnfilmWiderstände

DünnfilmWiderstände, also known as thin-film resistors, are passive electronic components used to limit or control the flow of electric current. They are constructed by depositing a thin layer of resistive material onto an insulating substrate, typically ceramic or glass. This resistive layer is usually a few micrometers thick and is applied through processes like sputtering, vacuum evaporation, or chemical vapor deposition. Common resistive materials include metals like nichrome (nickel-chromium alloy), tantalum nitride, or metal oxides such as ruthenium dioxide.

The resistance value of a thin-film resistor is determined by the resistivity of the deposited material, the thickness of the film, and the geometry of the resistive path. The resistive material is often patterned into a specific shape, such as a serpentine track, to achieve the desired resistance. A protective coating is then applied over the resistive element. DünnfilmWiderstände offer advantages such as good stability over time and temperature, low noise, and precise resistance values, making them suitable for high-precision applications. They are widely used in integrated circuits, precision measurement equipment, and telecommunications. Compared to bulk resistors, their thin-film construction allows for miniaturization and higher packing densities.