Invention Grant
- Patent Title: Charge-mirror based sensing for ferroelectric memory
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Application No.: US16504876Application Date: 2019-07-08
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Publication No.: US11133048B2Publication Date: 2021-09-28
- Inventor: Xinwei Guo , Daniele Vimercati
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Holland & Hart LLP
- Main IPC: G11C11/22
- IPC: G11C11/22

Abstract:
Methods, systems, and devices for a sensing scheme that extracts the full or nearly full remnant polarization charge difference between two logic states of a ferroelectric memory cell or cells is described. The scheme employs a charge mirror to extract the full charge difference between the two states of a selected memory cell. The charge mirror may transfer the memory cell polarization charge to an amplification capacitor. The signal on the amplification capacitor may then be compared with a reference voltage to detect the logic state of the memory cell.
Public/Granted literature
- US20200005851A1 CHARGE-MIRROR BASED SENSING FOR FERROELECTRIC MEMORY Public/Granted day:2020-01-02
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