| 摘要 |
PURPOSE:To prevent a contact position from being dislocated when a point to be tested is a terminal for lapping, by providing an insertion hole having a guide projection for inserting a probe of a tip part of a tester probe, on one end of a metal for extension, and providing a recessed surface part on the other end. CONSTITUTION:On one end of the metal 1 for extension, an insertion hole 12 for inserting the probe of the tip of a tester probe is provided, and on this insertion hole 12, a guide projection 13 is provided. Also, on the other end of the metal 1 for extension, a recessed surface part 11 is provide. A cylindrical insulator 2 is screwed to the periphery of the metal 1 for extension being adjacent to the recessed surface part 11. The insertion hole 12 is inserted into a metal rod 21, the guide projection 13 is fitted into a guide groove 22 and against the tester probe, the rotation of a tester probe adaptor is prevented. In such a way, it is prevented that the insulator 2 provided on the outer periphery of the metal 1 for extension is brought into contact with the adjacent terminal, and the recessed surface part 11 of the tip part suppresses the dislocation of a contact position, therefore, a stable contact is obtained.
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