[Lorentio Brodeso]’s ‘LACED’ project offers one such method, using both chemical etching and a 5 Watt diode engraving laser to remove the soldermask, copper and FR4 fiberglass layers.

Rapid etching X-rayed: Physicists unveil processes during fast chemical dissolution. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2011 / 03 / 110322105953.htm ...