Patent ID: 7492032
Filing Date: 2009-02-17
Classification: H01L

Abstract:
1. A fuse region, comprising: an interlayer insulating layer formed on a substrate; a fuse window defined by an inter-metal insulating layer and a passivation layer, wherein the fuse window, the inter-metal insulating layer and the passivation layer are formed on the interlayer insulating layer, a plurality of fuses in the fuse window; and a plurality of inter-fuse isolation walls located between each of the plurality of fuses, each of the inter-fuse isolation walls including lower and upper inter-fuse isolation patterns, wherein the upper inter-fuse isolation patterns are spaced apart from the fuses to provide first gap regions between the inter-fuse isolation walls and the fuses, and the lower inter-fuse isolation patterns are spaced apart from the fuses to provide second gap regions between the inter-fuse isolation walls and the fuses, the space of the second gap regions being smaller than the space of the first gap regions.