Patent ID: 7377790
Filing Date: 2008-05-27
Classification: H01L,H01R,H05K,Y10T

Abstract:
1. A land grid array (LGA) interposer structure, comprising an electrically insulating carrier plane, at least one interposer mounted on a first surface of said carrier plane, said interposer selectively having a hemi-toroidal, conical, dome-shaped conic section, generally cylindrical or hemi-spherical configuration in transverse cross-section and being constituted of a dielectric elastomeric material; a plurality of electrically-conductive elements being arranged about the surface of said at least one hemi-toroidal interposer and extending radially inwardly and downwardly from an uppermost end thereof into electrical contact with at least one component located on an opposite side of said electrically insulating carrier plane, said electrically-insulating carrier plane having at least one through-extending via formed therein; an electrically-conductive pad extending through said at least one via and having portions extending in surface contact with upper and lower surfaces of said insulating carrier plane, said electrically-conductive elements comprising metallic strips extending into contact with the pad portion the upper surface of said pad, and the at least one component on the opposite side of said insulating carrier plane being in contact with the pad portion on the upper surface of said pad, the at least one component on the opposite side of said insulating carrier plane being in electrically-conductive contact with the solder pad portion on the lower surface of said insulating carrier plane, said at least one hemi-toroidal interposer having a circular configuration, said at least one toroidal interposer having an inner wall surface configured to form a nest for snap-fitting engagement with a solder ball, said insulating carrier plane having a through-extending via communicating with a hollow center of said interposer, and at least one slit being formed in the sidewall of said interposer to facilitate the venting of gases and pressure therethrough.