Maskless lithography refers to a DLP® technology application used for PCB exposure, solder masks, flat panel displays, laser marking and other digital light exposure systems. In traditional production methods, a contrast mask is needed to selectively limit light exposure. Our digital UV projectors expose high resolution patterns on photoresists films in such precision, that contrast masks are not needed anymore. This reduces production cost substantially, allowing for lower-volume batches with photolithography machines. Producers may change lithography patterns instantly, without additional cost for a new photomask.
Next to PCB applications, In-Vision has brought this technology with all its advantages to silicon wafer lithography. This application requires precision down to 2µm - a welcome challenge for our development team.