发明名称 Semiconductor device and manufacturing method thereof
摘要 To provide a semiconductor device comprising a first layer that is provided on a semiconductor substrate and includes a first wiring pattern planarized by CMP and a plurality of first dummy patterns made of a same material as the first wiring pattern and a second layer that is provided above the semiconductor substrate and includes a second wiring pattern planarized by CMP and a plurality of second dummy patterns made of a same material as the second wiring pattern. A central axis of each of the second dummy patterns coincides with that of a corresponding one of the first dummy patterns in a direction perpendicular to the semiconductor substrate.
申请公布号 US8736063(B2) 申请公布日期 2014.05.27
申请号 US201313908706 申请日期 2013.06.03
申请人 ELPIDA MEMORY, INC. 发明人 TAKADA YORIO;ISHIZUKA KAZUTERU
分类号 H01L23/48 主分类号 H01L23/48
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