Integrated circuit interconnect structure having reduced coupling between interconnect lines

Abstract

An interconnect structure in which 'diagonal' and 'straight' interconnect lines are interleaved to minimize coupling between adjacent interconnect lines. An interconnect structure for an integrated circuit comprises rows and columns of tiles. Interconnect lines extend at least in part along a first column of the tiles, the interconnect lines including straight and diagonal interconnect lines. A “straight” interconnect line interconnects at least two tiles in the first column, and a “diagonal” interconnect line interconnects a tile in the first column with at least one tile in a different column and row. The interconnect lines are laid out in parallel fashion such that no straight interconnect line is physically adjacent to more than one other straight interconnect line, and no diagonal interconnect line is physically adjacent to more than one other diagonal interconnect line. Optionally, no two physically adjacent interconnect lines drive in the same direction within the first column.