<p>Disclosed is a microfine structure which can be used as an anisotropic conductive member. Also disclosed is a method for producing such a microfine structure. Specifically disclosed is a microfine structure which is composed of a base having penetrating micropores at a density of not less than 10,000,000 micropores/mm2. In this microfine structure, some penetrating micropores are filled with a substance other than the material of the base.</p>
