Patent ID: 7948291
Filing Date: 2011-05-24
Classification: H03K

Abstract:
1. A logic circuit, comprising: a switching device having two different stable resistivity values for each applied voltage value that is greater than a prescribed first threshold voltage, and is smaller than a prescribed second threshold voltage that is larger than the prescribed first threshold voltage, which when a voltage less than or equal to the prescribed first threshold voltage is applied thereto, becomes in a first state having the higher resistivity value of the two different stable resistivity values, and when a voltage more than or equal to the prescribed second threshold voltage is applied thereto, becomes in a second state having the lower resistivity value of the two different stable resistivity values, the switching device having first and second ends, including: an organic bistable layer, which is made of a thin film mediated between the lower electrode layer and the upper electrode layer, wherein a resistance device connected to the second end of the switching device to form a series circuit; a bias terminal for applying a prescribed bias voltage to both ends of the series circuit of the switching device and the resistance device; a first pulse inputting terminal for inputting a first pulse of a first prescribed voltage to the first end of the switching device; a second pulse inputting terminal for inputting a second pulse of a second prescribed voltage to a connection between the second end of the switching device and the resistance device, the first and second states being selectively generated in the switching device by a combination of inputs of the first and second pulses; and an output terminal for outputting an output voltage according to the first and second states, wherein the bias terminal and the first pulse inputting terminal are connected to the upper electrode layer, and the output terminal and the second pulse inputting terminal are connected to the lower electrode layer.