US Patent 7887356 Socket connector having protursions for positioning IC package

A socket connector includes a socket body, a plurality of contact terminals received in the socket body. The socket body includes an upper surface, a plurality of sidewalls extending upwardly from the upper surface. The upper surface and the sidewalls jointly define a cavity for receiving an IC package therein. A plurality of protrusions extend upwardly from the upper surface and formed separately from the sidewall. The protrusions being discretely distributed at periphery of the IC package and thereby positioning the IC package.