What is the power and type of laser for burning tracks in the manufacture of printed circuit boards?

Question

lasers

If someone has experience or attempts to obtain tracks in the manufacture of printed circuit boards? What range will the laser require and its power? Is a CO2 monster over 100W required?

Answer 1

Here , for example, they use a film and burn it with a laser from dvd-r.

Answer 2

CO2 - infrared spectrum, reflects very well from copper, you get slow heating of a large spot on the board and burnt eyes. Good results are given by a 40 W green fiber laser, the scarf is burned out in 20 seconds, the tracks are 0.2 mm. In the example with film and DVD laser - the film remains on the tracks, then etching, for the home - the easiest option, the quality is worse than LUT, much worse than photopolymer.