Patent ID: 7268659

Claim:
A micro electric power converter comprising: a magnetic insulator substrate; a coil provided across a central portion of the magnetic insulator substrate; first terminals and second terminals provided on a perimeter portion of the magnetic insulator substrate; a semiconductor chip comprising circuits connected to the first terminals and the second terminals; and passive component parts, wherein a direction perpendicular to a cross section of a coil of the solenoid is designated as an X-direction in which a magnetic flux density generated by current flowing through the coil is high, and a direction perpendicular to the X-direction is designated as a Y-direction in which the magnetic flux density is low, and wherein the first terminals, through which are transmitted signals capable of causing a circuit malfunction under the influence of voltages induced by the magnetic flux, are arranged along the Y-direction; and the second terminals, through which are transmitted signals substantially incapable of causing a circuit malfunction under the influence of voltages induced by the magnetic flux, are arranged along the X-direction.