Electrcial socket with lga type coil contacts for ic package

An electrical socket, comprising:

• a housing defining a plurality of terminal holes extending along a vertical direction between opposite first and second faces;
• and
• a plurality of contacts loaded in the housing, the contacts comprising elastic portion received in the terminal holes, contacting pin projecting from the first face of the housing and connecting portions connecting with solder balls at the second face of the housing;
• wherein the solder portions are respectively offset from the terminal holes in a transverse direction perpendicular to the vertical direction.

An electrical socket comprising:

• an insulative housing defining therein plural pairs of holes arranged in matrix;
• each of said pairs defines a first hole extending through opposite first and second surfaces of said housing in a vertical direction, and a second hole located beside the first hole in a transverse direction perpendicular to said vertical direction;
• a plurality of contacts disposed in the corresponding first holes, respectively, each of said contacts defines a contacting end extending beyond the first surface, and a connecting end transversely extending into the corresponding second hole;
• and
• a plurality of solder balls disposed in the corresponding second holes around the second surface, respectively, and mechanically and electrically connected to the connecting end of the corresponding contact;
• wherein
• an insulative film located upon the second surface and covering the first holes while having corresponding through holes to exposing the second holes for allowing the corresponding solder balls to communicate with an exterior.