Invention Grant
- Patent Title: Compensation scheme for non-volatile memory
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Application No.: US13773078Application Date: 2013-02-21
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Publication No.: US08885400B2Publication Date: 2014-11-11
- Inventor: Yingchang Chen , Pankaj Kalra , Chandrasekhar Gorla
- Applicant: SanDisk 3D LLC
- Applicant Address: US CA Milpitas
- Assignee: SanDisk 3D LLC
- Current Assignee: SanDisk 3D LLC
- Current Assignee Address: US CA Milpitas
- Agency: Vierra Magen Marcus LLP
- Main IPC: G11C13/00
- IPC: G11C13/00 ; G11C7/00 ; G11C11/56

Abstract:
Methods for performing parallel voltage and current compensation during reading and/or writing of memory cells in a memory array are described. In some embodiments, the compensation may include adjusting a bit line voltage and/or bit line reference current applied to a memory cell based on a memory array zone, a bit line layer, and a memory cell direction associated with the memory cell. The compensation may include adjusting the bit line voltage and/or bit line reference current on a per memory cell basis depending on memory cell specific characteristics. In some embodiments, a read/write circuit for reading and/or writing a memory cell may select a bit line voltage from a plurality of bit line voltage options to be applied to the memory cell based on whether the memory cell has been characterized as a strong, weak, or typical memory cell.
Public/Granted literature
- US20140233329A1 COMPENSATION SCHEME FOR NON-VOLATILE MEMORY Public/Granted day:2014-08-21
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