9 Automatic test equipment and its software for testing electrical properties of semiconductor integrated circuits, namely, IC testers, memory IC testers, logic testers, and circuit testers; Semiconductor test system and its software consisting primarily of a host computer, a test head having many pincards for testing semiconductor integrated circuits, and a main frame; Semiconductor design validation system and its software for validating design of semiconductor integrated circuits based on design data produced through electronic design tools; and Storage media for storing electrical data or software, namely, compact disks, DVDs, magnetic disks, magnetic tapes, semiconductor memories, and any other types of medium for data storage