Patent ID: 7322831

Claim:
A matrix board-to-board connector comprising: a plurality of contacts, each contact having a retaining board, a first contacting portion extending downward from a bottom end of the retaining board, a connecting portion extending upward from one end of the retaining board opposite to the first contacting portion and then bending toward one side of the retaining board, a second contacting portion extending from one end of the connecting portion and being vertical to the retaining board, the second contacting portion gradually spiraling up to define a second pressing portion at a top end, a restricting board extending from a lateral side of, and perpendicular to, the retaining board and further extending vertically toward the second contacting portion, the restricting board and the connecting portion are located on the same side of the retaining board with respect to the first contacting portion; and an insulating housing, a plurality of receiving cavities being formed in the insulating housing for receiving the plurality of contacts, each receiving cavity going through the insulating housing; wherein the first contacting portion of each contact is received in the receiving cavity respectively, the free end of the first contacting portion projecting from a lower surface of the insulating housing, the second contacting portion projecting from an upper surface of the insulating housing.