- 专利标题: SEMICONDUCTOR DEVICE, RF-IC AND MANUFACTURING METHOD OF THE SAME
-
申请号: US12873668申请日: 2010-09-01
-
公开(公告)号: US20100320568A1公开(公告)日: 2010-12-23
- 发明人: Tsuyoshi FUJIWARA , Toshinori IMAI , Takeshi SAIKAWA , Yoshihiro KAWASAKI , Mitsuhiro TOYA , Shunji MORI , Yoshiyuki OKABE
- 申请人: Tsuyoshi FUJIWARA , Toshinori IMAI , Takeshi SAIKAWA , Yoshihiro KAWASAKI , Mitsuhiro TOYA , Shunji MORI , Yoshiyuki OKABE
- 申请人地址: JP Kanagawa
- 专利权人: RENESAS ELECTRONICS CORPORATION
- 当前专利权人: RENESAS ELECTRONICS CORPORATION
- 当前专利权人地址: JP Kanagawa
- 优先权: JP2005-186967 20050627
- 主分类号: H01L29/92
- IPC分类号: H01L29/92
摘要:
Provided is a technology capable of reducing parasitic capacitance of a capacitor while reducing the space occupied by the capacitor. A stacked structure is obtained by forming, over a capacitor composed of a lower electrode, a capacitor insulating film and an intermediate electrode, another capacitor composed of the intermediate electrode, another capacitor insulating film and an upper electrode. Since the intermediate electrode has a step difference, each of the distance between the intermediate electrode and lower electrode and the distance between the intermediate electrode and upper electrode in a region other than the capacitor formation region becomes greater than that in the capacitor formation region. For example, the lower electrode is brought into direct contact with the capacitor insulating film in the capacitor formation region, while the lower electrode is not brought into direct contact with the capacitor insulating film in the region other than the capacitor formation region.
公开/授权文献
信息查询
IPC分类: