Optical Jet for Plating and Etching Applications
Original Publication Date: 1985-Mar-01
Included in the Prior Art Database: 2005-Feb-18
An optical jet for plating and etching applications prevents the optical absorption of the solution that often hinders laser-assisted etching or plating. This procedure uses a jet of optically flat liquid 11 from a flattened nozzle 12 that produces a wide (N 1 cm) thin N 10 m) long (N 5 cm) jet 11 with two opposite faces that are parallel 13 and optically flat 14. The jet 11 impinges at an angle, to a flat, opaque solid material 15 and forms a region 18 in which the liquid flows next to the material with the liquid-solid interface optically flat 11. A laser beam 16 (focussed through lens 17), impinging normally on this surface, could be transmitted through the liquid 11 in region 18 to the solid.