Power module including a carrier assembly with combination of circuit board and lead frame

A power module, comprising:

• a carrier assembly including:
• a bottom board;
• a circuit board disposed on a supporting surface of the bottom board, wherein the circuit board includes a device mounting portion and two extending portions that protrude from the same side of the device mounting portion;
• a lead frame disposed on the bottom board and including a first conductive portion, a second conductive portion and a third conductive portion that are spaced apart and insulated from one another, wherein the first and third conductive portions are located at two opposite sides of the second conductive portion, respectively, and wherein one of the two extending portions is disposed between the first and second conductive portions, and the other one of the two extending portions is disposed between the second and third conductive portions, and an upper surface of the lead frame is flush with a top surface of each of the two extending portions;
• and
• two pad groups, each of the two pad groups including a first pad, a second pad, and a third pad, wherein the first, second, and third pads of one of the two pad groups are respectively disposed on one of the two extending portions, the first conductive portion, and the second conductive portion, and the first, second, and third pads of the other one of the pad groups are respectively disposed on the other one of the two extending portions, the second conductive portion, and the third conductive portion;
• and
• two power devices, wherein one of the power devices is disposed on the first conductive portion, the second conductive portion and one of the two extending portions disposed therebetween through one of the pad groups, and the other power device is disposed on the second conductive portion, the third conductive portion, and the other one of the two extending portions disposed therebetween through the other one of the pad groups, and the two power devices are electrically connected to each other in series through the second conductive portion.