| 摘要 |
PURPOSE: An electric connector assembly is provided to prevent signal crosstalk, while permitting the electric connector assembly to be suitable for high-speed transmission and impedance matching to be easily carried out. CONSTITUTION: An electric connector assembly includes conductor pads which are disposed on a board so as to be used as a contact. Conductor pads(34) are alternately disposed on both sides of a board(10). A conductor pad(34a) transmits a positive differential signal, and a conductor pad(34b) transmits a negative differential signal; these conductor pads are disposed on a same side(10a) of the board. A ground pad(34c) is disposed on an opposite side(10b) of the board so that this ground pad is positioned at an intermediate point between the conductor pads(34a,34b), thus forming one set of pads. In regard to conductor pads(34d,34e,34f) of another adjacent set, the pad(34d) which transmits a positive differential signal is disposed on the side of the pad(34b) of the previous set, which transmits the same negative differential signal. The ground pad(34f) of this set is disposed on the opposite side of the board from the pads(34d,34e). The pad of a third set which is adjacent to the pad(34e) that transmits a positive differential signal is a pad that transmits the same positive differential signal.
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