Used TEL / TOKYO ELECTRON Mark 8 #9280945 for sale

TEL / TOKYO ELECTRON Mark 8 is a photoresist equipment used in the lithographic process. The unit is designed to apply a light-sensitive resin, known as a photoresist, onto a substrate such as a silicon wafer used to create semiconductor circuitry. TEL MARK8 photoresist system utilizes a computer-controlled precision automated unit to apply a uniform thin film layer of photoresist onto the wafer. The machine is equipped with a high accuracy stepper motor which precisely positions the substrate in a circular motion. The precise motion prevents the photoresist from overlapping and ensures consistent thickness results across the substrate. The photoresist is applied with a spray head. Pressure from the stepper motor pushes a low-pressure volume of photoresist through the nozzle, forming droplets that are evenly distributed over the substrate. An integral automated cleaning tool reduces buildup of the photoresist on the nozzle in between uses, preventing contamination. The deposited photoresist layer is exposed to a UV mask that has been specifically designed to create the desired semiconductor circuits. The exposure causes a chemical reaction to occur in the exposed photoresist, changing the solubility levels in the original layer. The layer is then put through a post-exposure bake (PEB). With the heat from this step, the remaining exposed photoresist with high solubility dissolves away in a special developer solution, leaving behind a hardened pattern formed by the unexposed photoresist. TOKYO ELECTRON MARK-8 is capable of producing extremely precise results, and is able to create intricate features as small as 50 nanometers in size, making it suitable for use in device fabrication. The automated cleaning asset reduces operator maintenance, resulting in a more consistent product. MARK-8 photoresist model is an invaluable tool in the manufacturing of semiconductor devices.