A process for the selective recovery of Mo, V, Ni, Co and Al from spent hydroprocessing catalysts includes the steps of treating the spent catalysts to recovery metals, support as well as chemicals. The first transistor includes a first gate insulating film and a first gate electrode, the first gate insulating film contains a high-k material and a first metal, and the first gate electrode includes a lower conductive film, a first conductive film and a first silicon film. With the use of the spreading codes for spreading, the input signal is spread over a wide frequency band with uniform power on the frequency axis.