Patent ID: 8536936

Claim:
A power source controller comprising: a first power source line supplied with a reference power source voltage; a second power source line connected to an internal circuit; a control circuit configured to control a connection between the first power source line and the second power source line; a control signal line connected to the control circuit, and configured to provide a control signal for controlling the connection; a transistor comprising a first terminal, a second terminal and a control terminal in the control circuit, the control terminal of the transistor being connected to the control signal line; a semiconductor substrate on which the transistor is formed; a first wire on a wire layer above the semiconductor substrate, and configured to connect the first terminal of the transistor with the first power source line; a second wire on a wire layer above the semiconductor substrate, and configured to connect the second terminal of the transistor with the second power source line; and a third wire on a wire layer above the semiconductor substrate, above the control terminal of the transistor, and formed integrally with the control signal line, wherein the third wire and the second wire are substantially parallel with each other.