Patent ID: 7905730

Claim:
An interposer comprising: a contact having a spring section that has a non-symmetric shape and is formed as a single closed loop material capable of elastic deformation, and a pair of contact points that are formed as circular arcs and project outwardly from a surface of a single closed loop, separated from one another, each contact point positioned about half way around the loop of the spring section, the pair of contact points each positioned to contact a mating terminal, wherein the spring section has narrow portions that are narrowed in a direction that mutually approaches an axis between the pair of contact points; and a housing that has thickness corresponding to a size, in a direction where a pair of contact points are connected, and has a board support body having a penetration hole in which the narrow portions enter; wherein the housing has upper and lower spaces above and below the board support body for allowing the spring portion to bulge laterally; and wherein the contact has a thickness of about 50 μm or less.