Invention Grant
- Patent Title: Semiconductor device including a high density MIM capacitor and method
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Application No.: US16400860Application Date: 2019-05-01
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Publication No.: US11222946B2Publication Date: 2022-01-11
- Inventor: Jin-Mu Yin , Hung-Chao Kao , Dian-Hau Chen , Hui-Chi Chen , Hsiang-Ku Shen , Yen-Ming Chen
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsinchu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Slater Matsil, LLP
- Main IPC: H01L49/02
- IPC: H01L49/02

Abstract:
Methods of forming a 3-dimensional metal-insulator-metal super high density (3D-MIM-SHD) capacitor and semiconductor device are disclosed herein. A method includes depositing a base layer of a first dielectric material over a semiconductor substrate and etching a series of recesses in the base layer. Once the series of recesses have been etched into the base layer, a series of conductive layers and dielectric layers may be deposited within the series of recesses to form a three dimensional corrugated stack of conductive layers separated by the dielectric layers. A first contact plug may be formed through a middle conductive layer of the corrugated stack and a second contact plug may be formed through a top conductive layer and a bottom conductive layer of the corrugated stack. The contact plugs electrically couple the conductive layers to one or more active devices of the semiconductor substrate.
Public/Granted literature
- US20200176557A1 Semiconductor Device including a High Density MIM Capacitor and Method Public/Granted day:2020-06-04
Information query
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