| 摘要 |
PROBLEM TO BE SOLVED: To provide a connector for base board installation having an insulator made of an anisotropic resin hardly generating deformation due to heat at reflow or the like. SOLUTION: When the insulator 2 is heated, since orientations of an upper surface 2a1 and a lower surface 2a2 are different from each other, deformation is generated at the fitting part 2a of the insulator 2 due to a difference in coefficient of thermal expansion. In order to take measure against the above, a concave and a convex same as those at the lower surface are formed through the front to the back of the upper surface by forming concaves (hollow-shaped parts like grooves) 2a1a, 2a1b, 2a1c at a position facing the concave of the lower surface (not illustrated, a guiding part for fitting a mate connector, build-up part like ribs). Subsequently, as the balance of orientation is uniformized, the deformation of the fitting part of the insulator caused by the difference of thermal expansion coefficients is prevented. COPYRIGHT: (C)2004,JPO |
