Patent ID: 7635269

Claim:
A socket for an electrical part, comprising: a wiring board on which a plurality of electrodes are arranged; a plurality of electro-conducting members which are vertically telescopic; a unit body comprising: a holding member which holds the electro-conducting members such that upper contact portions and lower contact portions of the electro-conducting members project out, the holding member being vertically movable on the wiring board so that the lower contact portions of the electro-conducting members contact to the electrodes of the wiring board; and a floating plate that is vertically movable above the holding member and has through holes through which the upper contact portions of the electrode-conducting members pierce; a socket body that is fixed on the wiring board and has an inside surface adjacent to the unit body; an urge member which is placed between the floating plate and the holding member, and urges the floating plate upward; and a cover member which pushes down the holding member and floating plate by pushing the electrical part downward at a stronger force than the urge member when the electrical part is placed on the upper contact portions of the electro-conducting members, wherein contact pressures between the lower contact portions and the electrodes of the wiring board are the same as contact pressures between the upper contact portions and the electrical part.