A carbon foam article useful for, inter alia, composite tooling or other high temperature applications, which includes a carbon foam having a ratio of compressive strength to density of at least about 7000 psigcc. By F selecting laser energy at a wavelength that tends to be transmitted by crystalline silicon and absorbed by amorphous silicon, crystallization progresses through the silicon layers in a manner that minimizes or prevents diffusion of dopants upward from the doped region to the undoped or lightly doped region. In this process, it is desired to arrange a plurality of CBN tools along the longitudinal direction of the long scale hardened steel to thereby sequentially cut the work surface. The risk to the signal paths of incorrect timing analysis results due to the cells with tied input pins is estimated by a tied input pin analysis tool. The cable is also adapted to rotate about its feed or longitudinal axis when the cable drum is rotated.