What is Laser Direct Imaging, LDI, LDI PCB, PCB LDI, What is LDI Hey readers! Hopefully, you are having a great day. Today, we will discuss Laser Direct Imaging (LDI) and its role in PCB fabrication. Laser Direct Imaging (LDI) is a computer-directed method that employs laser beams to expose circuit patterns directly onto photoresist-coated PCBs, without the need ...