Invention Grant
- Patent Title: NAND sensing circuit and technique for read-disturb mitigation
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Application No.: US17202133Application Date: 2021-03-15
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Publication No.: US12266406B2Publication Date: 2025-04-01
- Inventor: Narayanan Ramanan
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Akona IP PC
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G06F3/06 ; G11C16/04 ; G11C16/24 ; G11C16/26 ; G11C16/34 ; G11C11/56

Abstract:
Sensing circuits and techniques for NAND memory that can enable improved read disturb on the selected SGS are described herein. In one example, a reverse sensing circuit includes circuitry coupled with a bitline of the string of NAND memory cells to perform a sensing operation. The circuitry charges the bitline of the string of NAND memory cells to a target bitline voltage and applies a voltage to the source line that is higher than the bitline voltage. The sense current flows through the string from the source line to the bitline. The voltage at a sensing node that is indicative of a threshold voltage of a memory cell can then be detected.
Public/Granted literature
- US20220293193A1 NAND SENSING CIRCUIT AND TECHNIQUE FOR READ-DISTURB MITIGATION Public/Granted day:2022-09-15
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