Patent ID: 6123552
Filing Date: 2000-09-26
Classification: H05K

Abstract:
An IC socket comprising a plurality of contact pins, wherein:said contact pins comprise a plurality of lead frames each having a plurality of leads at opposite sides thereof arranged parallel to one another in a single plane; andsaid contact pins are formed by: (i) arranging ends of the leads of each of the lead frames such that the ends of the leads at the opposite sides respectively have a pitch identical to an electrode pitch of a semiconductor device to be mounted to the IC socket and a pitch identical to a pitch of electrical connection terminals of an external connection body to be connected to the IC socket, (ii) bending each of the lead frames to form a step portion therein such that the ends of the leads at the opposite sides extend substantially in parallel with the single plane, and (iii) stacking the bent lead frames such that the ends of the leads on one side of the stacked lead frames are arrayed in matrix form and have pitches identical to the electrode pitch of the semiconductor device, and such that the ends of the leads on the other side of the stacked lead frames are arrayed in matrix form and have two-dimensionally enlarged pitches identical to the pitch of the electrical connection terminals of the external connection body.