Patent ID: 7193301
Filing Date: 2007-03-20
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip having a first main surface formed with electrode pads and a second main surface opposite to the first main surface; a mounting substrate having a chip mounting surface which has an area wider than an area of the second main surface and is opposed in face to face contact with the second main surface, the semiconductor chip being mounted on said mounting substrate; an encapsulating layer formed on the chip mounting surface so as to cover the semiconductor chip; wiring patterns electrically connected to the electrode pads and extending in contact with the encapsulating layer from a first region to a second region, the first region being located on the surface of the encapsulating layer which is located above the semiconductor chip and the second region being located on the surface of the encapsulating layer which surrounds the first region; external terminals disposed on the surfaces of the wiring patterns located on the second region, and a first trench formed on the mounting surface and extending from a first side surface of the mounting substrate to a second side surface of the mounting substrate opposite to the first side surface of the mounting substrate, wherein the encapsulating layer is formed in the first trench.