Invention Application
- Patent Title: METAL-INSULATOR-METAL BACK END OF LINE CAPACITOR STRUCTURES
- Patent Title (中): 金属绝缘子 - 金属后端线电容器结构
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Application No.: US14271515Application Date: 2014-05-07
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Publication No.: US20150325635A1Publication Date: 2015-11-12
- Inventor: Hui Zang , Bingwu Liu
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Main IPC: H01L49/02
- IPC: H01L49/02 ; H01L23/532 ; H01L23/522

Abstract:
Embodiments of the present invention provide improved metal-insulator-metal (MIM) capacitors. In embodiments, series resistance is reduced by forming a via underneath the bottom plate of a MIM capacitor, leading to a metallization layer or intermediate metal sublayer. In embodiments, the MIM capacitor is formed with a corrugated shape to increase the plate surface area, allowing a thicker dielectric to be used, thereby mitigating leakage issues.
Public/Granted literature
- US09252203B2 Metal-insulator-metal back end of line capacitor structures Public/Granted day:2016-02-02
Information query
IPC分类: