Patent ID: 7261572
Filing Date: 2007-08-28
Classification: H05K

Abstract:
1. A land grid array (LGA) socket comprising: a rectanaular-shape having a center; a distribution of spring loaded contacts to electrically and mechanically engage a package inserted into the socket, wherein the socket is divided into four distinct regions, wherein each of the four distinct regions is populated by a distinct set of contacts, wherein the distinction of each set of contacts to the other three contacts is derived from contact orientation with respect to the center of the socket, wherein each set of contacts contributes a force upon the package which is; unique from the other three regions, in magnitude and/or direction, wherein the shape of each region and contact orientation relative to the socket determine the magnitude and direction of the force contributed by each of the regions on the inserted package, wherein the combination of forces and moments about the center of the socket of any two of the four regions, results in either the sum of the forces on the inserted package due to two of the four regions to be substantially greater than zero, or the sum of the moments on the inserted package, about the center of the socket, due to two of the four regions, to be substantially greater than zero, and wherein the combination of forces and moments about the center of the socket of the combination of the four regions results in both the sum of the forces on the inserted package to be approximately zero and the sum of the moments on the inserted package, about the center of the socket, to also be approximately zero.