Integrated circuit package routing with reduced crosstalk

An integrated circuit package, comprising:

• a first pair of conductive via structures that carries a first differential signal;
• a second pair of conductive via structures that carries a second differential signal, wherein the first and second pairs of conductive via structures are orthogonally intertwined to form corners of a square-shaped region, wherein a given conductive via structure in the first pair and a given conductive via structure in the second pair are separated by a first distance and define a first line;
• and
• a plurality of ground via structures that surrounds the first and second pairs of conductive via structures, wherein two directly adjacent via structures in the plurality of ground via structures are separated by a second distance that is different than the first distance, and wherein the two directly adjacent via structures in the plurality of ground via structures define a second line that is parallel to the first line.