Laser enhanced and high speed jet selective electrodeposition

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Abstract
Current techniques for selective electrodeposition are briefly mentioned, showing their advantages and disadvantages. The technique and principles of laser enhanced selective electrodeposition are explained and the results of experiments carried out to measure enhancements are given. An experimental plating unit is described which combines laser enhancement with electrolyte jetting. Plating rates achieved using this system have been found to be as high as 16μm/s on metallised ceramic substrates. Also described is a system for selectively depositing pure gold at high speed onto both metallic and metallised ceramic substrates using electrolyte jetting without the need for any masking thus giving the ability to “directly write” conducting tracks, contact pads, etc.

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