Has anyone tried to make source/drain electrodes on ITO by ablation with a CNC laser cutter?
That depends on the type of laser in the laser cutter. If it is a pulsed laser (for example, Krypton-Flourine excimer), then it should work.
Why do you think that pulsed operation is necesssary? Btw, I have an Nd:YAG laser that can has both CW and pulsed. Many thanks.
Ablation is a process which removes material by vaporization. In order to vaporize a thin film you typically need quite a bit of power delivered to the substrate. In your case, peak powers of pulsed lasers are several (often many, many) orders of magnitude greater than that of a CW laser. I suppose it could be done with a CW laser, but at the risk of damaging the surrounding material from large amounts of heat transfer.
Thank you very much for your valuable answer. I understand that it's better to use higher power for shorter amounts of time to limit the heat transfer within the ITO layer.
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