| 摘要 |
PURPOSE:To upgrade the operating function of a semiconductor device and to contrive the simplification of the structure and the cutdown in the cost in the apparatuses to be applied by forming the device in a constitution capable of controlling the current to flow in the input part by the device itself. CONSTITUTION:Input parts 3a and 3b and output parts 4a and 4b are alternately provided on each cross end part of the an active layer 2. These input parts 3a and 3b and output parts 4a and 4b are each to be used as an ohmic contact part and a mixture of an Au-Ge alloy and Ni is normally used for these input and output parts. Moreover, a current correcting part 5, which is an ohmic contact part for correcting and uniformizing the current to flow in the input part 3a, and a gate 6 for controlling the current to flow in the input part 3a are provided in the vicinity of the input part 3a on the active layer 2. This gate 6 is connected with the input part 3b on the other side through a wiring part 6a. Thus, a constant-current circuit is formed, the current to flow in this semiconductor device can be held constant and the output voltage from the output parts can be controlled. |
