An interconnect structure for integrated circuits for copper wires in integrated circuits and methods for making the same are provided. The method also includes transmitting a copy of the data portion to the current destination, updating the current destination to be the next destination and updating the next destination to be a new next destination, and after updating, storing the current destination and the next destination in association with the stored data portion. In the first period, a plurality of lines corresponding to the number of nodes included in the node group are connected in parallel between the particular node and the pixel. Touchdown of the readwrite head and other parameters of the disk drive operation may therefore be detected as variances in the VGA control values. In the image the image of the optical fibers can be excluded so that only light intensity from the air discharge of the electric arc is recorded in the captured images.