Tiny Structures on a Submicron Layer

The power of laser light has many applications; from cutting thick steel plates for industrial applications to use by eye surgeons in medicine. These two examples have little in common besides a coherent light source. When we drastically narrow the field of application to laser etching of a conductive layer on an insulating substrate for electronics applications, some would like to process 70 μm thick copper, while others may need to work on submicron thickness.