US Patent 7367815 Electrical socket

An electrical comprises a base, and a plurality of contacts received in the base. The base defines a mating interface, a mounting interface opposite to the mating interface, and a plurality of passageways arranged between the mating interface and the mounting interface so as to receive the contacts. The base further defines peripheral edges, and each edge defines at least one positioning member extending upwardly from the mating interface along the peripheral edges, said positioning members seated around region having contacts so as to define a receiving cavity adapted to have an CPU module received therein jointly with the mating interface.