Patent ID: 8354731
Filing Date: 2013-01-15
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a substrate; an electric fuse comprising a lower-layer wiring formed over said substrate, a first via provided on said lower-layer wiring and connected to said lower-layer wiring, and an upper-layer wiring provided on said first via and connected to said first via, a flowing-out portion, said flowing-out portion comprising a conductive material comprising said electric fuse being formed in a cut-off state of said electric fuse; and a heat diffusion portion comprising a heat diffusion wiring that is formed in a same layer as one of said upper-layer wiring and said lower-layer wiring and is placed on a side of said one of said upper-layer wiring and said lower-layer wiring, said heat diffusion portion being electrically connected to said one of said upper-layer wiring and said lower-layer wiring, wherein said heat diffusion wiring is formed at least on a side of a point where said one of said upper-layer wiring and said lower-layer wiring is connected to said first via.