Patent ID: 7575441

Claim:
A board-to-board connector assembly, comprising: a receptacle connector having a receptacle housing having a base board disposed levelly and two second sidewalls extending upward from two opposite sides of the base board, a receiving recess being formed between the second sidewalls, a top surface of each of the second sidewalls defining a fixing channel parallel the receiving recess and penetrating through two opposite ends thereof, each of the second sidewalls further defining a plurality of first passageways communicating with the receiving recess, and a plurality of first terminals received in the corresponding first passageways and stretching into the receiving recess; and a plug connector mated with the receptacle connector and having a plug housing having a base plate disposed levelly, two fixing ribs extending downward from two opposite sides of the base plate, and an inserting wall extending downward from a middle of the base plate and parallel to and higher than the fixing ribs, the plug housing defining a plurality of second passageways in the inserting wall and the base plate, each of the second passageways penetrating through the corresponding fixing rib, and a plurality of second terminals received in the corresponding second terminals and each having a bar-shaped base portion and a soldering portion extending from one end of the base portion, the base portion being propped against the corresponding fixing rib and the soldering portion stretching out of the corresponding fixing rib; wherein when the plug connector is engaged with the receptacle connector, the inserting wall is inserted in the receiving recess and the fixing rib is buckled into the corresponding fixing channel, the first terminals contact the corresponding second terminals electrically.