Abstract: Receipt of an order for a support for transportation in a trade or for documentation in a trade is managed. A control unit of a service management server sends an order receipt information registration screen. In a case where a service pattern is selected on the order receipt information registration screen, the control unit retrieves service plans that constitute the service pattern, and outputs the service plans. Then, the control unit acquires order receipt particulars information about the service plans. Then, the control unit registers order receipt management data. On the other hand, in a case where order receipt information is input in the order receipt information registration screen, the control unit retrieves a service plan that matches the order receipt information, and outputs the service plan.

Abstract: A semiconductor controlled rectifier comprises a semiconductor substrate having four layers of alternate n- and p-type conductivities and includes two main surfaces one of which is formed of the exposed surface of first and second layers and the other of which is formed of the exposed surface of a fourth layer. A gate electrode of a rectangular shape is disposed on the second layer on the one main surface and a cathode electrode is disposed on the first layer so as to extend along at least two sides of the rectangular gate electrode. The cathode electrode portion extending along the short side of the rectangular gate extends slightly beyond a p-n junction defined between the first and second layers, so as to be in ohmic contact with the second layer.