Patent ID: 7706756
Filing Date: 2010-04-27
Classification: H01L,H03F

Abstract:
1. An electronic device including a power amplifier circuit and a switch circuit to which an output of the power amplifier circuit is connected, the electronic device comprising: a wiring board; a first semiconductor chip mounted over a main surface of the wiring board, the first semiconductor chip including a MISFET (Metal Insulator Semiconductor Field Effect Transistor) formed therein for constituting the power amplifier circuit; and a second semiconductor chip mounted over the main surface of the wiring board for constituting the switch circuit, wherein low pass filter circuits of the first and second systems are formed of first and second integrated passive elements mounted over the main surface of the wiring board, respectively, wherein the electronic device comprises the power amplifier circuits of first and second systems, the switch circuits of the first and second systems electrically connected to the outputs of the power amplifier circuits of the first and second systems, respectively, and the low pass filter circuits of the first and second systems electrically connected between the power amplifier circuits of the first and second systems and the switch circuits of the first and second systems, respectively, wherein the MISFETs constituting the power amplifier circuits of the first and second systems are formed in the first semiconductor chip, wherein the switch circuits of the first and second systems are formed in the second semiconductor chip, and wherein electrical connections are established between the first integrated passive element and the second semiconductor chip, and between the second integrated passive element and the second semiconductor chip over the main surface of the wiring board via the conductive pattern of the wiring board or via the conductive pattern and the bonding wire without via the passive component.