Patent ID: 8899997
Filing Date: 2014-12-02
Classification: H01R

Abstract:
1. An electrical connector comprising: an insulative housing having a top surface, a bottom surface opposite to the top surface and a plurality of receiving holes penetrated the top surface and the bottom surface; a plurality of terminals received in the receiving holes and having a soldering tail extending beyond the bottom surface; and a plurality of solder balls assembled to the receiving holes from a bottom surface thereof and contacting with the corresponding terminals; wherein the receiving hole comprises an inner wall and a pair of ribs extending from the inner wall, the movement of the solder ball in a vertical direction is limited by the pair of ribs and the solder ball is positioned by the terminal together with the inner wall with three points; wherein the bottom surface has a plurality of recesses connecting the adjacent receiving holes in a horizontal direction; wherein the line that connected the center of the solder ball and the center of the recess is perpendicular to the line that connected the center of the solder ball and the center of the soldering tail.