Invention Grant
- Patent Title: Low noise bit line circuits
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Application No.: US17107692Application Date: 2020-11-30
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Publication No.: US11217313B2Publication Date: 2022-01-04
- Inventor: Ji-Yu Hung
- Applicant: MACRONIX INTERNATIONAL CO., LTD.
- Applicant Address: TW Hsinchu
- Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Haynes Beffel & Wolfeld LLP
- Main IPC: G11C16/24
- IPC: G11C16/24 ; G11C16/26

Abstract:
The disclosed technology teaches a memory device with memory cells, each with a sense circuit with an input node in current flow communication, a BLC transistor, a transfer transistor, a current source transistor, and an output circuit to generate data based on a voltage on the sensing node. Also disclosed is a sensing sequence in which control circuits apply BLC voltage to the BLC transistor, transfer voltage to the transfer transistor and current control voltage to the current source transistor to provide a charging current to the BL, and to adjust the current control voltage to provide a keeping current on the BL from the current source transistor, and to apply a read voltage to a selected memory cell on the bit line. Additionally included is applying a timing signal to the output circuit to generate the data based on a voltage on the sensing node.
Public/Granted literature
- US20210082521A1 LOW NOISE BIT LINE CIRCUITS Public/Granted day:2021-03-18
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