Patent ID: 9715906
Date: 2017-07-25
CPC Classifications: G11C,H01L

Claim:
1. A bootstrap circuit comprising: a first input terminal and a second input terminal to which a first signal and a second signal are input, respectively; an output terminal; a first transistor; a capacitor; and a first circuit, wherein one terminal of the capacitor is connected to the second input terminal, and the other terminal of the capacitor is connected to the output terminal, wherein one of a source and a drain of the first transistor is directly connected to the other terminal of the capacitor, wherein the other of the source and the drain of the first transistor is connected to the first input terminal, wherein the first circuit comprises a second transistor, wherein one of a source and a drain of the second transistor is directly connected to the other terminal of the capacitor, wherein the first transistor is diode-connected so as to allow a forward current to flow in the first transistor when the first signal is at a high level, and wherein the first circuit has a function of applying a voltage directly to the output terminal when the first signal is at a low level, thereby maintaining a voltage of the output terminal.