发明申请
- 专利标题: FABRICATING METHOD OF SEMICONDUCTOR DEVICE
- 专利标题(中): 半导体器件制造方法
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申请号: US13841132申请日: 2013-03-15
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公开(公告)号: US20140273432A1公开(公告)日: 2014-09-18
- 发明人: BYUNG-HEE KIM , Tae-Soo Kim , Seong-Ho Park , Young-Ju Park , Ju-Young Jung
- 申请人: BYUNG-HEE KIM , Tae-Soo Kim , Seong-Ho Park , Young-Ju Park , Ju-Young Jung
- 主分类号: H01L21/768
- IPC分类号: H01L21/768
摘要:
A semiconductor device is fabricated by forming a lower conductor in a first interlayer dielectric film. A second interlayer dielectric film is formed on the lower conductor and the first interlayer dielectric film. A first hard mask pattern is formed on the second interlayer dielectric film. The first mask pattern has a first opening extending in a first direction. A planarization layer is formed on the first hard mask pattern. A mask pattern is formed on the planarization layer. The mask pattern has a second opening extending in a second direction perpendicular to the first direction. The lower conductor is positioned under an region where the first opening and the second opening overlap. A via hole and a trench connected to the via hole is formed using the first hard mask pattern and the mask pattern. The via hole exposes an upper surface of the lower conductor.
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