A method and apparatus for connecting between a serial fibre channel link and a global memory provide a bidirectional high throughput path for enabling reliable communications and translation from the fibre channel format to the format required by the global memory. After formation of a cavity between the pair of metal lines, the dielectric metal-diffusion barrier layer is formed on the exposed surfaces of the cavity. Each columnar part has, on its inner surface, an indented part formed in the neighborhood of the middle of the columnar part, and protrusions and depressions of the indented part are formed at an equally spaced pitch in an up and down direction of the columnar part. The preferred embodiment has a two headed second figure with heads representing Osama bin Laden and Saddam Hussein respectively. Image processing techniques may be employed that consider the beam steering angle and the field of view to compensate for distortion effects.