Abstract text

A burn-in socket includes a base, a sliding plate mounted to the base and having a number of pin holes, a number of contacts secured to the base and an actuator mounted on the base. The contacts each comprise a base portion and a pair of arms received in the pin holes of the sliding plate. The actuator includes a frame and a number of actuating portion for driving the sliding plate to move in a transversal direction. The actuating portion has a protrusion at a top end thereof and the protrusion makes the sliding plate not only open one of the pair of arms, but also push a solder ball received in the pair of arms away from the other one of the pair of arms.