Patent ID: 7766666

Claim:
A board-to-board connector assembly, comprising: a receptacle connector having: a receptacle housing having a flat first base board, two first sidewalls protruded upward from two opposite sides of the first base board and an inserting wall protruded upward from the first base board between the first sidewalls, a pair of first receiving recesses being formed between the inserting wall and the corresponding first sidewalls, the receptacle housing defining a plurality of terminal passageways extended longitudinally and communicating with the corresponding first receiving recesses; and a plurality of first terminals disposed in the corresponding terminal passageways and each having a base arm extending longitudinally, two opposite ends of the base arm extending upward to form a first elastic arm and a fixing arm respectively, a portion of the base arm further extending upward to form a second elastic arm located between the first elastic arm and the fixing arm, a free end of the first elastic arm protruding towards the second elastic arm to form a first contact portion, a free end of the second elastic arm protruding substantially towards the first contact portion to form a second contact portion, the first and the second contact portions stretching into the corresponding first receiving recess; and a plug connector mated with the receptacle connector and having: a plug housing having a flat second base board and two second sidewalls protruded downward from two opposite sides of the second base board to be inserted in the corresponding first receiving recesses of the receptacle housing, a receiving chamber being formed between the second sidewalls for receiving the inserting wall therein; and a plurality of second terminals mounted to the second sidewalls and each having a U-shaped continuity body riding on the corresponding second sidewall, the continuity body including a first contact arm located in the receiving chamber against an inside of the corresponding second sidewall and a second contact arm against an outside of the corresponding second sidewall; wherein the continuity body of the second terminal is clipped between the first and the second elastic arms of the corresponding first terminal, and the first and the second contact portions elastically contact the first and the second contact arms respectively.