| 摘要 |
A semiconductor device including a multilevel wiring with a small interwiring capacitance is provided by comprising a wiring, a conductive film formed on an upper surface of the wiring to prevent diffusion of a wiring material, and an insulating film which is constituted of low dielectric constant insulating films stacked to form at least two layers, an interface thereof being positioned in a side face of the wiring.
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