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Group read refresh

A memory bank, selected technology, used in the memory field to solve problems such as data data errors

Active Publication Date: 2019-05-07
SANDISK TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In certain configurations, data read from a memory device may have data errors if a block or group of memory cells has been disturbed or is in an unexpected state

Method used

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Examples

Experimental program
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Embodiment Construction

[0017] Aspects of the present disclosure may be embodied as an apparatus, system, method or computer program product. Thus, aspects of the present disclosure can take the form of an entirely hardware implementation, an entirely software implementation (including firmware, resident software, microcode, etc.), or an implementation combining software and hardware aspects, generally referred to herein as Referred to as "circuit", "module", "device" or "system". Additionally, aspects of the present disclosure may take the form of a computer program product embodied in one or more non-transitory computer-readable storage media storing computer-readable and / or executable program code.

[0018] Many of the functional units described in this specification have been labeled as modules, in order to more particularly emphasize their implementation independence. For example, a module may be implemented as a hardware circuit comprising custom VLSI circuits or gate arrays, off-the-shelf sem...

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PUM

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Abstract

The subject of the invention is group read refresh. Apparatuses, systems, methods, and computer program products are disclosed for performing a group read refresh. An apparatus includes a plurality ofmemory groups. An apparatus includes an operation circuit that performs an operation on a selected memory group of a plurality of memory groups. An apparatus includes a remediation circuit that performs a countermeasure operation on an unselected memory group of a plurality of memory groups in response to an operation on a selected memory group.

Description

technical field [0001] In various implementations, the present disclosure relates to memory, and more particularly to performing group read refresh on memory blocks. Background technique [0002] Many circuits and devices, such as memory devices, can be organized in blocks or groups. In certain configurations, data read from a memory device may have data errors if a block or group of memory cells has been disturbed or is in an unexpected state. Contents of the invention [0003] Means are provided for performing a group read refresh. In one embodiment, a device includes multiple memory banks. In some embodiments, an apparatus includes operating circuitry to perform an operation on a selected memory bank of the plurality of memory banks. In some implementations, the apparatus includes modification circuitry that performs countermeasure operations on unselected ones of the plurality of memory banks in response to the operation on the selected memory bank. [0004] A syst...

Claims

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Application Information

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IPC IPC(8): G11C16/16
CPCG11C11/5642G11C16/0483G11C16/26G11C16/3418G11C16/3427G06F12/00G11C11/40603G11C11/40618G11C11/4091G11C29/783
Inventor P·D·罗斯威戈G·沙阿N·N·杨
Owner SANDISK TECH LLC