Patent ID: 7315454

Claim:
A semiconductor memory module, comprising: an electronic printed circuit board including a contact strip that extends at a first edge of the printed circuit board along a first lateral direction and a plurality of electrical contacts disposed along the first lateral direction between two second edges that extend in a second lateral direction that is perpendicular to the first lateral direction; and a plurality of semiconductor memory chips of substantially identical type mounted on at least one external area of the printed circuit board and having a rectangular form with a shorter dimension and a longer dimension in a direction perpendicular to the shorter dimension, the memory chips being arranged in at least two rows, each row extending, in the first lateral direction, between a center of the printed circuit board and a respective second edge, wherein the memory chips in each row are arranged in an alternating sequence of opposite orientations with the longer dimension of each memory chip being parallel with the shorter dimension of adjacent memory chips in the same row, and wherein memory chips aligned in the second lateral direction and lying in respective adjacent rows have opposite orientations.