MOLD, ELECTRONIC DEVICE, AND METHOD OF MANUFACTURING ELECTRONIC DEVICE

摘要

To produce a metal case (20) having regular perforations (21) for an electronic device, a metal mold (30) includes pins (36) provided on its cope (31) or drag (32). The pins (36) are arranged in such a manner that the line connecting two adjacent pins is not perpendicular to the flow of molten metal that is introduced through a cavity (35) in the mold (30).