Invention Grant
- Patent Title: Method to reduce program disturbs in non-volatile memory cells
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Application No.: US15807057Application Date: 2017-11-08
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Publication No.: US10204691B2Publication Date: 2019-02-12
- Inventor: Ryan T. Hirose , Igor G. Kouznetsov , Venkatraman Prabhakar , Kaveh Shakeri , Bogdan Georgescu
- Applicant: Cypress Semiconductor Corporation
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C16/34 ; G11C16/08 ; G11C16/10 ; G11C16/30 ; G11C11/34 ; G11C16/12 ; G11C29/50

Abstract:
A non-volatile memory that includes a shared source line configuration and methods of operating the same to reduce disturbs is provided. In one embodiment, the method includes coupling a first positive high voltage to a first global wordline in a first row of an array of memory cells, and coupling a second negative high voltage (VNEG) to a first bitline in a first column of the array to apply a bias to a non-volatile memory transistor in a selected memory cell to program the selected memory cell. A margin voltage having a magnitude less than VNEG is coupled to a second global wordline in a second row of the array, and an inhibit voltage coupled to a second bitline in a second column of the array.
Public/Granted literature
- US10262747B2 Method to reduce program disturbs in non-volatile memory cells Public/Granted day:2019-04-16
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