Patent ID: 7554193
Filing Date: 2009-06-30
Classification: H01L

Abstract:
1. A semiconductor device having a semiconductor circuit for signal amplification and a control circuit for controlling said semiconductor circuit for signal amplification which are laminated on a first layer of a multilayer circuit board, wherein said semiconductor circuit for signal amplification has a plurality of amplifier circuits aligned in parallel in order to amplify signals of plural bands, said semiconductor circuit for signal amplification and said control circuit are aligned in parallel on the same semiconductor element so that said control circuit is surrounded by said plurality of amplifier circuits, said semiconductor element is mounted by a flip chip connection on said circuit board, and pitch of source bump electrodes or emitter bump electrodes aligned in parallel is narrower than a pitch of drain bump electrodes or gate bump electrodes or collector bump electrodes or base bump electrodes aligned in parallel in a layout of bump electrodes which electrically connect said semiconductor element and said circuit board, wherein the source bump electrodes or emitter bump electrodes a portion of third subsequent layers of the multilayer circuit board, as viewed from the semiconductor circuit, are connected to a ground electrode of the multilayer circuit board by common thermal vias for heat radiation.