Patent ID: 7777348
Filing Date: 2010-08-17
Classification: H01L

Abstract:
1. A semiconductor device comprising: a package board which has a plurality of first board pads arranged on the package board, has a plurality of second board pads arranged on the package board, has first interconnections provided on the surface of the package board and connected to the first board pads, has second interconnections provided below the surface of the package board and connected to the second board pads, and has a plurality of contacts provided in the package board to connect the first interconnections to the second interconnections; a first semiconductor chip which is rectangular in shape, has a plurality of first pads arranged along a short side of the first semiconductor chip and is placed on the package board; and a second semiconductor chip which is rectangular in shape, has a plurality of second pads arranged along a short side of the second semiconductor chip and is placed on the first semiconductor chip so that a vertex of the second semiconductor chip at which a long side of the second semiconductor chip and the short side of the second semiconductor chip along which no pads are arranged meet falls on a vertex of the first semiconductor chip at which a long side of the first semiconductor chip and the short side of the first semiconductor chip along which no pads are arranged, and the long sides of the first and second semiconductor chips intersect each other, wherein the arrangement of the second pads is the same as arrangement of the first pads, the arrangement of the second board pads is the same as arrangement of the first board pads, each of the first board pads is connected to a respective one of the first pads, and each of the second board pads is connected to a respective one of the second pads.