Patent ID: 9627340
Date: 2017-04-18
CPC Classifications: G11C,H01L

Claim:
1. A semiconductor device comprising: a first semiconductor chip which outputs a first signal by a first bus width and which includes a first via which transfers the first signal; and a second semiconductor chip which receives, by the first bus width, the first signal transferred through the first via, wherein the first semiconductor chip comprises a drive circuit which drives the first signal, the second semiconductor chip comprises a transfer circuit which takes one of a conduction state and a cut-off state in accordance with the first signal, and an amplifier circuit which amplifies the first signal when the transfer circuit is in the cut-off state, the first signal has one of a first voltage and a reference voltage, and the transfer circuit includes a first transistor, the second semiconductor chip further comprises a power supply circuit which supplies the gate of the first transistor with a voltage in which the first voltage and the threshold voltage of the first transistor are added together, the amplifier circuit comprises an inverter, a condenser, and a latch circuit, and the drain of the first transistor is electrically connected to a power supply end of the inverter, and the output portion of the inverter is electrically connected to the condenser and the latch circuit.