Patent ID: 7473854

Claim:
A printed circuit board, comprising: an insulating layer; a wiring layer formed on one surface of said insulating layer; and a conductor pattern formed on the other surface of said insulating layer, the conductor pattern including: a plurality of parallel first linear segments overlapping the wiring layer, wherein a pair of adjacent parallel first linear segments defines a row; a plurality of second linear segments in between adjacent first linear segments at a first angle with respect to the first linear segments and parallel to one another; and a plurality of third linear segments in between adjacent first linear segments at a second angle with respect to the first linear segments and parallel to one another, wherein the plurality of second and third linear segments in between adjacent first linear segments forms a plurality of triangular openings, and wherein said plurality of triangular openings each have at least one of the first, second, and third linear segments at an angle of 60° with respect to the wiring layer.