An electrical component structure (14) comprises a plurality of overlying substantially parallel layers (15, 16). Each layer (15, 16) provides a lattice (17, 20) comprising a first set of conductive tracks arranged substantially orthogonal to, and electrically connected with, a second set of conductive tracks. Conductive islands (18, 22) are located in windows of the lattices (17, 20), the conductive islands being electrically isolated from the tracks. The lattice (17, 20) of each layer (15, 16) is electrically connected to the conductive islands (22, 18) of the other adjacent layer (16, 15).