Patent ID: 7923827

Claim:
An integrated circuit device including a semiconductor module for a Switched-Mode Power Supply, comprising: a semiconductor power switch having a gate electrode, a source electrode and a drain electrode; a control semiconductor chip; a leadframe including a die pad and a plurality of leads disposed on one side of the die pad, each lead having an inner portion and an outer portion, wherein the die pad includes first and second mechanically isolated regions, wherein the leads include a drain lead extending from the first region of the die pad, a ground lead extending from the second region of the die pad, and remaining leads are spaced at a distance from the die pad such that the remaining leads are not mechanically connected to the die pad, and wherein the semiconductor power switch is mounted on the first region of the die pad and the control semiconductor chip is mounted on the second region of the die pad; a first bond wire extending from the control semiconductor chip to the gate electrode of the semiconductor power switch; a plurality of second bond wires extending between the power semiconductor chip and at least one lead and extending between the control semiconductor chip and at least one lead; and plastic housing material forming a package housing, the plastic housing material encapsulating the control semiconductor chip, the semiconductor power switch, the bond wires and the inner portions of the leads, the plastic housing material electrically isolating the first region and the second region of the die pad and electrically isolating the semiconductor power switch from the control semiconductor chip.