JP6439896B1 - メモリ書き込み制御装置及び不揮発性メモリの不良判定方法 - Google Patents
メモリ書き込み制御装置及び不揮発性メモリの不良判定方法 Download PDFInfo
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- JP6439896B1 JP6439896B1 JP2018154713A JP2018154713A JP6439896B1 JP 6439896 B1 JP6439896 B1 JP 6439896B1 JP 2018154713 A JP2018154713 A JP 2018154713A JP 2018154713 A JP2018154713 A JP 2018154713A JP 6439896 B1 JP6439896 B1 JP 6439896B1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/409—Read-write [R-W] circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/4074—Power supply or voltage generation circuits, e.g. bias voltage generators, substrate voltage generators, back-up power, power control circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/30—Power supply circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/02—Detection or location of defective auxiliary circuits, e.g. defective refresh counters
- G11C29/021—Detection or location of defective auxiliary circuits, e.g. defective refresh counters in voltage or current generators
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/02—Detection or location of defective auxiliary circuits, e.g. defective refresh counters
- G11C29/028—Detection or location of defective auxiliary circuits, e.g. defective refresh counters with adaption or trimming of parameters
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/4078—Safety or protection circuits, e.g. for preventing inadvertent or unauthorised reading or writing; Status cells; Test cells
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/50—Marginal testing, e.g. race, voltage or current testing
- G11C2029/5006—Current
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/52—Protection of memory contents; Detection of errors in memory contents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Read Only Memory (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
Description
12 電流計
13 電源
20、20A、20B コントローラ
21 読み書き制御ブロック
22 消費電流計測ブロック
100 データ書き込み装置
101 制御装置
102 CPU
103 アドレスバス
104 データバス
200 データストレージ
Claims (5)
- 特定の型格の不揮発性メモリ装置に対して計測された書き込み動作にかかる総消費電流の分布に応じたデータを格納したデータ格納領域と、
前記型格と同一の型格の不揮発性メモリ装置のメモリ領域に対する書き込み動作時に当該不揮発性メモリ装置に電源から流れる書き込み動作にかかる総消費電流値が、前記分布において総消費電流の大きい側にずれている度合を前記データに基づいて評価することにより、前記メモリ領域の良否を判定する制御装置と
を含むメモリ書き込み制御装置。 - 前記データはデータリテンション特性の劣化に関して許容可能な総消費電流の最大値を示すデータであり、前記制御装置は、前記測定された総消費電流値が前記最大値よりも大きい場合に前記メモリ領域が不良であると判定する請求項1記載のメモリ書き込み制御装置。
- 前記最大値は前記同一の型格の不揮発性メモリ装置の用途に応じて異なる値である請求項2記載のメモリ書き込み制御装置。
- 前記制御装置は、前記メモリ領域が不良であると判定すると、不良であることを示す信号を外部に送出する請求項1乃至3いずれか一項記載のメモリ書き込み制御装置。
- 特定の型格の不揮発性メモリ装置に対して予め計測された書き込み動作にかかる総消費電流の分布に応じたデータをデータ格納領域から参照し、
前記型格と同一の型格の不揮発性メモリ装置のメモリ領域に対する書き込み動作時に当該不揮発性メモリ装置に電源から流れる書き込み動作にかかる総消費電流値を測定し、
前記測定された総消費電流値が、前記分布において総消費電流の大きい側にずれている度合を前記データに基づいて評価することにより、前記メモリ領域の良否を判定する
各段階を含む不揮発性メモリの不良判定方法。
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JP2018154713A JP6439896B1 (ja) | 2018-08-21 | 2018-08-21 | メモリ書き込み制御装置及び不揮発性メモリの不良判定方法 |
US16/536,360 US10720202B2 (en) | 2018-08-21 | 2019-08-09 | Apparatus for memory control |
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JP2022036654A (ja) * | 2020-08-24 | 2022-03-08 | キオクシア株式会社 | メモリデバイス及びメモリシステム |
CN112711548B (zh) * | 2021-01-11 | 2023-05-16 | 星宸科技股份有限公司 | 内存装置、图像处理芯片以及内存控制方法 |
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JP2004342161A (ja) * | 2003-05-13 | 2004-12-02 | Yamaha Corp | 半導体試験装置および方法 |
JP2011187127A (ja) * | 2010-03-09 | 2011-09-22 | Nec Corp | 記憶装置のスクリーニング装置及び記憶装置のスクリーニング方法 |
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JP3164106B2 (ja) | 1999-06-29 | 2001-05-08 | 日本電気株式会社 | 集積回路の故障検出方法及び故障検出装置及びその制御プログラムを記録した記憶媒体 |
JP2006252361A (ja) | 2005-03-14 | 2006-09-21 | Matsushita Electric Ind Co Ltd | 半導体集積回路 |
JP2007052591A (ja) * | 2005-08-17 | 2007-03-01 | Fujitsu Ltd | 半導体集積回路の電源電圧分布シミュレーション方法およびシミュレーションプログラム |
US20150120220A1 (en) * | 2013-10-29 | 2015-04-30 | Kla-Tencor Corporation | Detecting IC Reliability Defects |
US9070481B1 (en) * | 2014-05-30 | 2015-06-30 | Sandisk Technologies Inc. | Internal current measurement for age measurements |
US9658800B2 (en) * | 2014-12-22 | 2017-05-23 | Sandisk Technologies Llc | End of life prediction based on memory wear |
TWI689927B (zh) * | 2018-08-31 | 2020-04-01 | 大陸商合肥沛睿微電子股份有限公司 | 儲存裝置及其nand快閃記憶體控制器 |
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JP2004342161A (ja) * | 2003-05-13 | 2004-12-02 | Yamaha Corp | 半導体試験装置および方法 |
JP2011187127A (ja) * | 2010-03-09 | 2011-09-22 | Nec Corp | 記憶装置のスクリーニング装置及び記憶装置のスクリーニング方法 |
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