DISPLAYING METHOD FOR SPECIFIED TERMINAL SIDE OF INTERMETALLIC COMPOUND SEMICONDUCTOR

摘要

PURPOSE:To easily identify the kind of a terminal side of a cylindrical ingot of an intermetallic cpd. semiconductor by forming a plurality of identification belts on the ingot surface over the total length of the longitudinal direction while varying the space or the width. CONSTITUTION:In order to easily indentify both terminal sides of indium side 2 and antimony side 3 of cylindrical ingot 1 of an intermetallic cpd. semiconductor formed by a pulling method, e.g. indium antimonide, an acid resistant paint, e.g. epoxy type coating is coated onto the surface of ingot 1 in the form of stripes over the total length of the axial direction, or acid resistant tapes are stuck. Photoresist layers may be formed using a photosensitive material. Thus, resists 4, 5, 6 are arranged at different spaces. Since the positional relation of the three resists at side 2 and that at side 3 become reverse, sides 2, 3 can be identified easily and correctly.