| 摘要 |
A semiconductor device includes a first interlayer insulating film, a second interlayer insulating film formed on the first interlayer insulating film, a plug having a lower portion surrounded by the first interlayer insulating film and an upper portion projecting from the first interlayer insulating film and surrounded by the second interlayer insulating film, a wire formed in the second interlayer insulating film, and having a connected portion that is connected to the plug and a non-connected portion that is not connected to the plug, and a stopper insulating film formed in a region between the first interlayer insulating film and the non-connected portion of the wire and between the second interlayer insulating film and the upper portion of the plug.
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