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Electrochemical Etching System for STM tip
UTE-1001 makes a very sharp STM tip by electrochemical etching.
A tungsten wire submerged into Potassium Hydroxide solution is applied voltage and at the end of the tip comes to very sharp.
UTE-1001 shut down automatically when etching process finished, so you can get nearly same quality tip if you use same concentration about reagent and voltage.