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Apparatuses and methods for targeted refreshing of memory

A technology of memory and redundant memory, which is applied in the direction of static memory, read-only memory, digital memory information, etc., and can solve the problem of increased unit leakage

Active Publication Date: 2017-12-01
MICRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, cell-to-cell leakage can increase due to coupling effects, and repeated accesses can degrade data for rows physically adjacent to the one or more repeatedly accessed rows

Method used

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  • Apparatuses and methods for targeted refreshing of memory
  • Apparatuses and methods for targeted refreshing of memory
  • Apparatuses and methods for targeted refreshing of memory

Examples

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Embodiment Construction

[0033] Apparatus and methods for refreshing memory are disclosed herein, according to one or more embodiments, to refresh one or more rows physically adjacent to a "target" row in a target row refresh (TRR) mode. Certain details are set forth below in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details. Furthermore, the specific embodiments of the invention described herein are provided by way of illustration and should not be used to limit the scope of the invention to these specific embodiments. In other instances, well known circuits, control signals, timing protocols and software operation have not been shown in detail in order not to unnecessarily obscure the present invention.

[0034] Instances of the invention generally involve refreshing a memory row that is physically adjacent to a "target" memory row, regar...

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Abstract

The invention relates to apparatuses and methods for targeted refreshing of memory. Apparatuses and methods for targeted row refreshes are disclosed herein. In an example apparatus, a predecoder receives a target row address and determines whether a target row of memory associated with the target row address is a primary or a redundant row of memory. The predecoder is further configured to cause one or more rows of memory physically adjacent the primary row of memory to be refreshed if the primary row is the target row or one or more rows of memory physically adjacent the redundant row of memory to be refreshed if the redundant row of memory is the target row of memory.

Description

[0001] Information about divisional applications [0002] This case is a divisional application. The parent case of this divisional case is an invention patent application with an application date of January 17, 2014, an application number of 201480007334.X, and an invention title of "equipment and method for target refresh of memory". [0003] Cross References to Related Applications [0004] This application claims priority to US Nonprovisional Patent Application Serial No. 13 / 758,667, filed February 4, 2013. The entirety of this application is hereby incorporated by reference for all purposes. technical field [0005] Embodiments of the invention relate generally to semiconductor memory, and more specifically, in one or more of the described embodiments, relate to refreshing one or more memory rows physically adjacent to one or more target memory rows memory row. Background technique [0006] In current memory systems, data stored in non-volatile memory such as DRA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C11/406G11C11/408G11C8/10G11C17/16G11C17/18G11C29/00
CPCG11C8/10G11C11/406G11C11/40611G11C11/40622G11C11/4087G11C17/16G11C17/18G11C29/783G11C2211/4068
Inventor 威廉·F·琼斯杰弗里·P·莱特
Owner MICRON TECH INC