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DE602007000394D1 - Halbleiterspeicher mit internem und externem Refresh - Google Patents

Halbleiterspeicher mit internem und externem Refresh

Info

Publication number
DE602007000394D1
DE602007000394D1 DE602007000394T DE602007000394T DE602007000394D1 DE 602007000394 D1 DE602007000394 D1 DE 602007000394D1 DE 602007000394 T DE602007000394 T DE 602007000394T DE 602007000394 T DE602007000394 T DE 602007000394T DE 602007000394 D1 DE602007000394 D1 DE 602007000394D1
Authority
DE
Germany
Prior art keywords
internal
semiconductor memory
external refresh
refresh
external
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602007000394T
Other languages
English (en)
Inventor
Tomohiro Kawakubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Semiconductor Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE602007000394D1 publication Critical patent/DE602007000394D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles
    • 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
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles
    • G11C11/40611—External triggering or timing of internal or partially internal refresh operations, e.g. auto-refresh or CAS-before-RAS triggered refresh
    • 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
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles
    • G11C11/40615—Internal triggering or timing of refresh, e.g. hidden refresh, self refresh, pseudo-SRAMs
    • 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
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles
    • G11C11/40622—Partial refresh of memory arrays
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C2211/00—Indexing scheme relating to digital stores characterized by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C2211/401—Indexing scheme relating to cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C2211/406—Refreshing of dynamic cells
    • G11C2211/4061—Calibration or ate or cycle tuning

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dram (AREA)
DE602007000394T 2006-05-18 2007-05-14 Halbleiterspeicher mit internem und externem Refresh Active DE602007000394D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006138840A JP4967452B2 (ja) 2006-05-18 2006-05-18 半導体メモリ

Publications (1)

Publication Number Publication Date
DE602007000394D1 true DE602007000394D1 (de) 2009-02-05

Family

ID=38426486

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007000394T Active DE602007000394D1 (de) 2006-05-18 2007-05-14 Halbleiterspeicher mit internem und externem Refresh

Country Status (7)

Country Link
US (1) US7471587B2 (de)
EP (1) EP1858025B8 (de)
JP (1) JP4967452B2 (de)
KR (1) KR100877651B1 (de)
CN (1) CN100578665C (de)
DE (1) DE602007000394D1 (de)
TW (1) TWI333211B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5554476B2 (ja) * 2008-06-23 2014-07-23 ピーエスフォー ルクスコ エスエイアールエル 半導体記憶装置および半導体記憶装置の試験方法
JP2012252742A (ja) * 2011-06-02 2012-12-20 Elpida Memory Inc 半導体装置
JP2013030001A (ja) * 2011-07-28 2013-02-07 Elpida Memory Inc 情報処理システム
JP5978860B2 (ja) * 2012-08-31 2016-08-24 富士通株式会社 情報処理装置、メモリ制御ユニット、メモリ制御方法および制御プログラム
CN103730152B (zh) * 2012-10-16 2016-10-05 华邦电子股份有限公司 储存媒体及其控制方法
US8995210B1 (en) * 2013-11-26 2015-03-31 International Business Machines Corporation Write and read collision avoidance in single port memory devices
KR20150067416A (ko) * 2013-12-10 2015-06-18 에스케이하이닉스 주식회사 반도체 장치
KR20160045461A (ko) * 2014-10-17 2016-04-27 에스케이하이닉스 주식회사 반도체 장치 및 그의 구동방법
JP6444803B2 (ja) * 2015-05-01 2018-12-26 ラピスセミコンダクタ株式会社 書込電圧生成回路及びメモリ装置
US20170110178A1 (en) * 2015-09-17 2017-04-20 Intel Corporation Hybrid refresh with hidden refreshes and external refreshes
US9761297B1 (en) * 2016-12-30 2017-09-12 Intel Corporation Hidden refresh control in dynamic random access memory
JP6476325B1 (ja) 2018-02-01 2019-02-27 華邦電子股▲ふん▼有限公司Ｗｉｎｂｏｎｄ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏｒｐ． 擬似ｓｒａｍ及びその制御方法
KR102479500B1 (ko) * 2018-08-09 2022-12-20 에스케이하이닉스 주식회사 메모리 장치, 메모리 시스템 및 그 메모리 장치의 리프레시 방법
TWI702611B (zh) * 2018-12-06 2020-08-21 旺宏電子股份有限公司 記憶體電路
US11037616B2 (en) * 2018-12-14 2021-06-15 Micron Technology, Inc. Apparatuses and methods for refresh operations in semiconductor memories
KR102742014B1 (ko) * 2019-04-10 2024-12-13 에스케이하이닉스 주식회사 반도체 메모리 장치 및 그의 동작 방법
US10978132B2 (en) * 2019-06-05 2021-04-13 Micron Technology, Inc. Apparatuses and methods for staggered timing of skipped refresh operations
CN120279967A (zh) * 2019-09-13 2025-07-08 铠侠股份有限公司 存储器系统
US11222686B1 (en) * 2020-11-12 2022-01-11 Micron Technology, Inc. Apparatuses and methods for controlling refresh timing

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6320798A (ja) 1986-07-14 1988-01-28 Pfu Ltd リフレツシユ自動切替制御方式
JPH0793003B2 (ja) * 1988-09-01 1995-10-09 三菱電機株式会社 ダイナミックランダムアクセスメモリ装置およびその動作方法
US5208779A (en) * 1991-04-15 1993-05-04 Micron Technology, Inc. Circuit for providing synchronous refresh cycles in self-refreshing interruptable DRAMs
JPH05298882A (ja) * 1992-04-21 1993-11-12 Pfu Ltd ダイナミックｒａｍのリフレッシュ制御方式
JP3220586B2 (ja) * 1993-12-28 2001-10-22 富士通株式会社 半導体記憶装置
JP3569315B2 (ja) * 1994-09-01 2004-09-22 株式会社ルネサステクノロジ 同期型半導体記憶装置
JPH08138374A (ja) * 1994-11-10 1996-05-31 Nec Corp 半導体メモリ装置およびそのリフレッシュ方法
JP3311260B2 (ja) * 1996-12-17 2002-08-05 富士通株式会社 半導体装置及び半導体記憶装置
JP2000030439A (ja) * 1998-07-13 2000-01-28 Mitsubishi Electric Corp 半導体記憶装置
KR100363107B1 (ko) * 1998-12-30 2003-02-20 주식회사 하이닉스반도체 반도체메모리 장치
JP2001118383A (ja) * 1999-10-20 2001-04-27 Fujitsu Ltd リフレッシュを自動で行うダイナミックメモリ回路
JP2002093164A (ja) * 2000-09-12 2002-03-29 Seiko Epson Corp 半導体装置、そのリフレッシュ方法、メモリシステムおよび電子機器
JP2004253038A (ja) * 2003-02-19 2004-09-09 Renesas Technology Corp 半導体記憶装置
US7042785B2 (en) * 2003-12-19 2006-05-09 Infineon Technologies, Ag Method and apparatus for controlling refresh cycles of a plural cycle refresh scheme in a dynamic memory
JP4806520B2 (ja) 2004-05-21 2011-11-02 富士通セミコンダクター株式会社 半導体記憶装置及びメモリシステム
TWI260019B (en) * 2004-05-21 2006-08-11 Fujitsu Ltd Semiconductor memory device and memory system
US7079440B2 (en) 2004-05-27 2006-07-18 Qualcomm Incorporated Method and system for providing directed bank refresh for volatile memories
US7164615B2 (en) * 2004-07-21 2007-01-16 Samsung Electronics Co., Ltd. Semiconductor memory device performing auto refresh in the self refresh mode

Also Published As

Publication number Publication date
KR20070112019A (ko) 2007-11-22
US20070268768A1 (en) 2007-11-22
JP4967452B2 (ja) 2012-07-04
US7471587B2 (en) 2008-12-30
TWI333211B (en) 2010-11-11
CN101075477A (zh) 2007-11-21
CN100578665C (zh) 2010-01-06
EP1858025A1 (de) 2007-11-21
JP2007310960A (ja) 2007-11-29
EP1858025B8 (de) 2009-03-18
EP1858025B1 (de) 2008-12-24
KR100877651B1 (ko) 2009-01-08
TW200802373A (en) 2008-01-01

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: FUJITSU MICROELECTRONICS LTD., TOKYO, JP

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FUJITSU SEMICONDUCTOR LTD., YOKOHAMA, KANAGAWA, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE