Patent ID: 7777309
Filing Date: 2010-08-17
Classification: H01L,H03F

Abstract:
1. A semiconductor device for use in a radio communication device, comprising: a semiconductor chip including a voltage controlled oscillator, a first differential low noise amplifier, and a second differential low noise amplifier; a chip mounting portion over which the semiconductor chip is mounted; a plurality of leads disposed around the chip mounting portion; and a resin sealing body covering the semiconductor chip, parts of the leads, and part of the chip mounting portion, wherein the chip mounting portion is exposed from a back surface of the resin sealing body, the first and second low noise amplifiers are disposed side by side, each of the first and second low noise amplifiers has a pair of radio signal inputs, a first pair of electrodes for the pair of radio signal inputs of the first low noise amplifier are disposed on a main surface of the semiconductor chip side by side, a second pair of electrodes for the pair of radio signal inputs of the second low noise amplifier are disposed on the main surface of the semiconductor chip side by side, a fifth electrode for providing ground potential to at least one of the first low noise amplifier and the second low noise amplifier is disposed on the main surface of the semiconductor chip, a sixth electrode for providing ground potential to the voltage controlled oscillator is disposed on the semiconductor chip, the first pair of electrodes are electrically connected with a first pair of leads of the plurality of leads via a first pair of conductive wires, respectively, the second pair of electrodes are electrically connected with a second pair of leads of the plurality of leads via a second pair of conductive wires, respectively, the fifth electrode is electrically connected with a fifth lead of the plurality of leads via a fifth conductive wire, the sixth electrode is electrically connected with the chip mounting portion via a sixth conductive wire, the fifth electrode is between the first and second pairs of electrodes, and the fifth conductive wire is between the first and second pairs of wires, the fifth electrode and the sixth electrode are electrically isolated from each other in the semiconductor device; and the fifth conductive wire and the sixth conductive wire are electrically isolated from each other in the semiconductor device.