Patent ID: 7989935
Filing Date: 2011-08-02
Classification: G05F,H01L

Abstract:
1. A semiconductor device arranged as a single device package comprising: a semiconductor chip that includes a voltage regulator, a power supply input terminal, a ground terminal, and an output terminal through which a produced constant voltage output by the voltage regulator is supplied; a phase compensation condenser that is connected between the output terminal of the semiconductor chip and the ground terminal of the semiconductor chip, for phase compensation of the voltage regulator; and an interposer including (i) a first rerouting wire connecting an output terminal of the device package and the output terminal of the semiconductor chip via a bonding wire, and connecting one end of the phase compensation condenser and the output terminal of the device package, and (ii) a second rerouting wire connecting another end of the phase compensation condenser and a ground terminal of the semiconductor device package, wherein said one end of the phase compensation condenser receives the produced constant voltage output by the voltage regulator through the first rerouting wire, and said another end of the phase compensation condenser is connected through the second rerouting wire to the ground terminal, and wherein the interposer, the semiconductor chip and the phase compensation condenser as a whole are accommodated in the same single device package to increase phase margin and stability of the voltage regulator output through the output terminal of the device package.