CN1479314A - 半导体存储器 - Google Patents
半导体存储器 Download PDFInfo
- Publication number
- CN1479314A CN1479314A CNA031076238A CN03107623A CN1479314A CN 1479314 A CN1479314 A CN 1479314A CN A031076238 A CNA031076238 A CN A031076238A CN 03107623 A CN03107623 A CN 03107623A CN 1479314 A CN1479314 A CN 1479314A
- Authority
- CN
- China
- Prior art keywords
- request signal
- refresh
- circuit
- signal
- level
- 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.)
- Granted
Links
Images
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
- 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
- G11C11/402—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 with charge regeneration individual to each memory cell, i.e. internal 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
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP249436/2002 | 2002-08-28 | ||
JP2002249436A JP3998539B2 (ja) | 2002-08-28 | 2002-08-28 | 半導体記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1479314A true CN1479314A (zh) | 2004-03-03 |
CN1258189C CN1258189C (zh) | 2006-05-31 |
Family
ID=31492584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031076238A Expired - Fee Related CN1258189C (zh) | 2002-08-28 | 2003-03-21 | 半导体存储器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6741516B2 (zh) |
EP (1) | EP1394806B1 (zh) |
JP (1) | JP3998539B2 (zh) |
KR (1) | KR100826549B1 (zh) |
CN (1) | CN1258189C (zh) |
DE (1) | DE60314948T2 (zh) |
TW (1) | TWI262503B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7675810B2 (en) | 2005-09-29 | 2010-03-09 | Hynix Semiconductor, Inc. | Semiconductor memory device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005285271A (ja) * | 2004-03-30 | 2005-10-13 | Nec Electronics Corp | 半導体記憶装置 |
KR100909411B1 (ko) * | 2004-07-16 | 2009-07-24 | 후지쯔 마이크로일렉트로닉스 가부시키가이샤 | 반도체 기억 장치 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5235537A (en) * | 1975-09-12 | 1977-03-18 | Fujitsu Ltd | Mos memory unit |
JPS62188096A (ja) * | 1986-02-13 | 1987-08-17 | Toshiba Corp | 半導体記憶装置のリフレツシユ動作タイミング制御回路 |
JPS63155494A (ja) * | 1986-12-19 | 1988-06-28 | Fujitsu Ltd | 擬似スタテイツクメモリ装置 |
US5963497A (en) * | 1998-05-18 | 1999-10-05 | Silicon Aquarius, Inc. | Dynamic random access memory system with simultaneous access and refresh operations and methods for using the same |
JP4209064B2 (ja) * | 2000-02-29 | 2009-01-14 | 富士通マイクロエレクトロニクス株式会社 | 半導体記憶装置 |
JP3778417B2 (ja) * | 2000-02-29 | 2006-05-24 | 富士通株式会社 | 半導体記憶装置 |
JP2002008370A (ja) * | 2000-06-21 | 2002-01-11 | Mitsubishi Electric Corp | 半導体記憶装置 |
JP4000242B2 (ja) * | 2000-08-31 | 2007-10-31 | 富士通株式会社 | 半導体記憶装置 |
JP2002093165A (ja) * | 2000-09-18 | 2002-03-29 | Mitsubishi Electric Corp | 半導体記憶装置 |
JP4641094B2 (ja) * | 2000-11-17 | 2011-03-02 | 富士通セミコンダクター株式会社 | 半導体メモリ |
JP4768163B2 (ja) * | 2001-08-03 | 2011-09-07 | 富士通セミコンダクター株式会社 | 半導体メモリ |
JP4188640B2 (ja) * | 2002-08-08 | 2008-11-26 | 富士通マイクロエレクトロニクス株式会社 | 半導体記憶装置、半導体記憶装置の制御方法及び半導体記憶装置の試験方法 |
-
2002
- 2002-08-28 JP JP2002249436A patent/JP3998539B2/ja not_active Expired - Fee Related
-
2003
- 2003-02-26 DE DE60314948T patent/DE60314948T2/de not_active Expired - Lifetime
- 2003-02-26 EP EP03004140A patent/EP1394806B1/en not_active Expired - Fee Related
- 2003-03-03 TW TW092104406A patent/TWI262503B/zh not_active IP Right Cessation
- 2003-03-06 US US10/379,563 patent/US6741516B2/en not_active Expired - Fee Related
- 2003-03-18 KR KR1020030016750A patent/KR100826549B1/ko not_active IP Right Cessation
- 2003-03-21 CN CNB031076238A patent/CN1258189C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7675810B2 (en) | 2005-09-29 | 2010-03-09 | Hynix Semiconductor, Inc. | Semiconductor memory device |
Also Published As
Publication number | Publication date |
---|---|
JP2004087048A (ja) | 2004-03-18 |
EP1394806A3 (en) | 2004-07-14 |
DE60314948T2 (de) | 2007-10-31 |
EP1394806B1 (en) | 2007-07-18 |
TWI262503B (en) | 2006-09-21 |
DE60314948D1 (de) | 2007-08-30 |
KR100826549B1 (ko) | 2008-05-02 |
JP3998539B2 (ja) | 2007-10-31 |
US20040042311A1 (en) | 2004-03-04 |
CN1258189C (zh) | 2006-05-31 |
EP1394806A2 (en) | 2004-03-03 |
TW200403675A (en) | 2004-03-01 |
US6741516B2 (en) | 2004-05-25 |
KR20040019850A (ko) | 2004-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20081219 Address after: Tokyo, Japan Patentee after: Fujitsu Microelectronics Ltd. Address before: Kanagawa, Japan Patentee before: Fujitsu Ltd. |
|
ASS | Succession or assignment of patent right |
Owner name: FUJITSU MICROELECTRONICS CO., LTD. Free format text: FORMER OWNER: FUJITSU LIMITED Effective date: 20081219 |
|
C56 | Change in the name or address of the patentee |
Owner name: FUJITSU SEMICONDUCTOR CO., LTD. Free format text: FORMER NAME: FUJITSU MICROELECTRON CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Kanagawa Patentee after: FUJITSU MICROELECTRONICS Ltd. Address before: Kanagawa Patentee before: Fujitsu Microelectronics Ltd. |
|
CP02 | Change in the address of a patent holder |
Address after: Kanagawa Patentee after: FUJITSU MICROELECTRONICS Ltd. Address before: Tokyo, Japan Patentee before: Fujitsu Microelectronics Ltd. |
|
ASS | Succession or assignment of patent right |
Owner name: SUOSI FUTURE CO., LTD. Free format text: FORMER OWNER: FUJITSU SEMICONDUCTOR CO., LTD. Effective date: 20150515 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150515 Address after: Kanagawa Patentee after: SOCIONEXT Inc. Address before: Kanagawa Patentee before: FUJITSU MICROELECTRONICS Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060531 Termination date: 20160321 |
|
CF01 | Termination of patent right due to non-payment of annual fee |