Patent ID: 8535101

Claim:
A socket for a semiconductor device comprising: a plurality of contact terminals that have the same structure as each other and connect to signal lines and ground lines of the semiconductor device; an upper housing that is made from a conductive material and that is provided with a contact terminal reception unit that has a plurality of open ends through which said contact terminals pass and a plurality of contact terminal cells that form air layers that set an impedance at the peripheries of said contact terminals that correspond to said signal lines, when said contact terminals are separately received and said contact terminals that correspond to said signal lines are received; a lower housing that is made from an electrically insulating material, is disposed in said upper housing such as to cover the open ends of said contact terminal reception unit, and which has holes that correspond to said contact terminal cells and into which ends of said contact terminals are inserted; conductive collar members that are disposed such as to touch an inner surface, between an outer surface of said contact terminals and the inner surfaces of said contact terminals cells, of the contact terminal cells corresponding to said ground lines: and adapters that set the impedance of the contact terminal cells corresponding to said signal lines along with the relative permittivity of said air layers, and having electrically insulating properties and positioning said contact terminals between the outer surfaces of said contact terminals and the inner surfaces of said contact terminal cells.