Invention Application
- Patent Title: Semiconductor device
- Patent Title (中): 半导体器件
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Application No.: US11155272Application Date: 2005-06-17
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Publication No.: US20060006543A1Publication Date: 2006-01-12
- Inventor: Hiromi Shimazu , Tomio Iwasaki , Hiroyuki Ohta , Kensuke Ishikawa , Osamu Inoue , Takayuki Oshima
- Applicant: Hiromi Shimazu , Tomio Iwasaki , Hiroyuki Ohta , Kensuke Ishikawa , Osamu Inoue , Takayuki Oshima
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Priority: JP2004-180455 20040618
- Main IPC: H01L23/48
- IPC: H01L23/48

Abstract:
A reliable semiconductor device having a multilayer wiring structure formed of copper as a main component material, which constrains occurrence of voids caused by stress migration. In the multilayer wiring structure, a first insulation layer having a high barrier property and a compression stress, and making contact with the upper surface of a first wiring made of copper as a main component material, a second insulation film having a tensile stress, and a third insulation film having a dielectric constant which is lower than those of the first and second insulation film, are laminated one upon another in the mentioned order as viewed the bottom thereof, and a via hole is formed piercing thorough the first insulation film, the second insulation film and the third insulation film, making contact with the first wiring.
Public/Granted literature
- US07459786B2 Semiconductor device Public/Granted day:2008-12-02
Information query
IPC分类: