MICROSCOPIC METAL ELECTRODE AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a microscopic metal electrode capable of electrochemically and accurately evaluating a microscopic evaluation target.SOLUTION: A manufacturing method including the steps for inserting a metal wire 3 whose diameter is 30-100 μm into the inside of a glass tube 1 whose inner diameter is larger than the diameter of the metal wier 3, heating and softening a part of the glass tube 1 together with the inserted metal wire 3 and drawing the heated and softened portion in an axial direction and cutting off the glass tube 1 and the inserted metal wire 3 together on a position A drawn in the drawing step is used to obtain a microscopic metal electrode including the glass tube 1 whose tip side is formed like a taper and the metal wire 3 whose diameter of the base end side is 30-100 μm and tip side is formed like a taper and configured so that the metal wire 3 is in the glass tube 1, the tip of the metal wire 3 is coated by the tip of the glass tube 1 and an area of the whole tip surface is 8×10to 2×10mm.