Invention Grant
- Patent Title: FeRAM decoupling capacitor
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Application No.: US16780418Application Date: 2020-02-03
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Publication No.: US11296099B2Publication Date: 2022-04-05
- Inventor: Tzu-Yu Chen , Kuo-Chi Tu , Fu-Chen Chang , Chih-Hsiang Chang , Sheng-Hung Shih
- 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: H01L21/00
- IPC: H01L21/00 ; H01L27/11507 ; H01L27/11504 ; G11C11/22 ; H01L49/02

Abstract:
In an embodiment, a structure includes one or more first transistors in a first region of a device, the one or more first transistors supporting a memory access function of the device. The structure includes one or more ferroelectric random access memory (FeRAM) capacitors in a first inter-metal dielectric (IMD) layer over the one or more first transistors in the first region. The structure also includes one or more metal-ferroelectric insulator-metal (MFM) decoupling capacitors in the first IMD layer in a second region of the device. The MFM capacitors may include two or more capacitors coupled in series to act as a voltage divider.
Public/Granted literature
- US20210035993A1 FeRAM Decoupling Capacitor Public/Granted day:2021-02-04
Information query
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