An array camera, a mobile terminal, and methods for operating the same are disclosed. Input and output stages of the FIFO structure may be operated independently, allowing data to be loaded into the FIFO structure at a first frequency and unloaded from the FIFO structure at a second frequency. A first insulating layer is formed on the substrate and the gate lines. The surface area of the lower electrically conductive plate is about seventy-three percent larger than the projected surface area of the silicon substrate in which the lower electrically conductive plate is etched. The SLS device includes a laser beam generator for irradiating laser beams; a mask having a plurality of areas; a mask stage for moving the mask loaded thereto, to transmit a laser beam through a selective area of the mask; and a substrate stage for moving a substrate loaded thereto, to change portions of the substrate irradiated with the laser beam passing through the mask.