PicoMaster ATE-350 is a versatile UV laser writer with ultra-high precision components, specifically designed to give the user the highest degree of freedom to create micro/ nano structures in photo sensitive layers. The system uses 405 nm laser source to expose on the photosensitive layer. There is no need to order or make masks. The pattern can be changed according to the user's design. The system does not use a mask, only needs to be coated on the substrate and exposed by UV laser focusing. The laser is continuously modulated to the specified dose in the target area. The photoresist will change its chemical structure under laser irradiation. After exposure, it is easy to dissolve in the developer. Only part of the exposed area can form the target pattern.