US Patent 7914314 Electrical contact with multiple contacting points

An electrical contact comprises a contacting end having a slot tapered toward a free end of the contacting end, the slot defining opposite inner walls, a first, second contacting points being formed on the opposite inner walls respectively at a narrow part of the slot. A third contacting point extends from one of the opposite inner walls at the narrow part of the slot. A pin of a CPU can synchronously engage with the three contacting points. Thus, improved engagement between the pin and the contact will be provided.