| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an appropriate pressure contact with respect to both a spherical bump having a bigger diameter and a spherical bump having a smaller diameter by enhancing the reliability of a contact by a projection, when the projection of the contact comes into pressure contact with a side surface of the spherical bump. SOLUTION: In a contact structure of a spherical bump 2, in which first and second contact pieces 4, 5 are pressure-contacted with side surfaces facing to the spherical bump 2, the first contact pieces 4 has a first projection 6 pressure-contact with one side surface of the bump 2 on a meridian passing through one end of a diametrical line of the spherical bump 2, the second contact piece 5 has second and third projections 7, 8 brought into pressure-contact with the other side surface of the bump on both side of the meridian passing through the other end of the diametrical line of the spherical bump 2 and disposed at a spaced positions.</p> |
