Invention Grant
- Patent Title: Selection scheme for crosspoint memory
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Application No.: US17368634Application Date: 2021-07-06
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Publication No.: US11626161B2Publication Date: 2023-04-11
- Inventor: Davide Mantegazza , Kyung Jean Yoon , John Gorman , Dany-Sebastien Ly-Gagnon
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Compass IP Law PC
- Main IPC: G11C16/10
- IPC: G11C16/10 ; G11C13/00 ; G11C11/56

Abstract:
A selection scheme for crosspoint memory is described. In one example, the selection voltage applied across the memory cell is slowly ramped up. Once the memory cell thresholds, the voltage is reduced to a level for performing the read or write operation. Reducing the voltage once the specific cell has been selected (e.g., thresholds) minimizes the additional transient current which might be generated by further increasing the selection bias applied during read or write operation. The reduction in transient current can lead to an improvement in read disturb and write endurance issues. The selection ramp-rate and bias post-selection can be set differently depending on the cell location inside the memory array to further improve cell performance.
Public/Granted literature
- US20210335419A1 SELECTION SCHEME FOR CROSSPOINT MEMORY Public/Granted day:2021-10-28
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