Laser induced selective electroless plating

摘要

A method for maskless deposition of metals onto a workpiece by applying a sensitizing solution to a workpiece, directing a laser beam onto the sensitized workpiece surface to flash evaporate sensitizer from the workpiece in areas which are not to be plated, moving the workpiece or beam to describe a pattern, and thereafter contacting the thus- patterned sensitized workpiece with an electroless plating solution to deposit a layer of metal in those areas from which the sensitizer is not flashed off.