Patent ID: 8866543

Claim:
An integrated circuit (IC) having a stacked structure, the IC comprising: a first IC having a power input terminal to which a power supply voltage is applied; and a second IC having a power input terminal connected to a ground terminal of the first IC, having a central node formed as the power input terminal of the second IC and the ground terminal of the first IC are connected to each other and to which a voltage is applied, and having a ground terminal connected to a ground source, wherein the power supply voltage is divided into first and second voltages that are respectively applied to the first and second ICs, wherein the IC further comprises first and second regulators that are respectively connected between the power input terminal of the first IC and the central node and between the power input terminal of the second IC and the central node, and control the first and second voltages to be respectively applied to the first and second ICs in a uniform size.