JP5019579B2 - 半導体記憶装置 - Google Patents
半導体記憶装置 Download PDFInfo
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- JP5019579B2 JP5019579B2 JP2007009397A JP2007009397A JP5019579B2 JP 5019579 B2 JP5019579 B2 JP 5019579B2 JP 2007009397 A JP2007009397 A JP 2007009397A JP 2007009397 A JP2007009397 A JP 2007009397A JP 5019579 B2 JP5019579 B2 JP 5019579B2
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- Prior art keywords
- replica
- memory cell
- bit line
- local
- cell
- 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.)
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- 239000004065 semiconductor Substances 0.000 title claims description 13
- 238000003491 array Methods 0.000 claims description 35
- 230000003213 activating effect Effects 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 16
- 230000004913 activation Effects 0.000 description 14
- 101100481702 Arabidopsis thaliana TMK1 gene Proteins 0.000 description 12
- 101100481704 Arabidopsis thaliana TMK3 gene Proteins 0.000 description 12
- 238000002955 isolation Methods 0.000 description 7
- 101150110971 CIN7 gene Proteins 0.000 description 5
- 101100286980 Daucus carota INV2 gene Proteins 0.000 description 5
- 101150110298 INV1 gene Proteins 0.000 description 5
- 101100397044 Xenopus laevis invs-a gene Proteins 0.000 description 5
- 101100397045 Xenopus laevis invs-b gene Proteins 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/06—Sense amplifiers; Associated circuits, e.g. timing or triggering circuits
- G11C7/08—Control thereof
-
- 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
- G11C11/41—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 static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
- G11C11/412—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 static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger using field-effect transistors only
-
- 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
- G11C11/41—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 static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
- G11C11/413—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/02—Disposition of storage elements, e.g. in the form of a matrix array
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/22—Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management
- G11C7/227—Timing of memory operations based on dummy memory elements or replica circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/12—Group selection circuits, e.g. for memory block selection, chip selection, array selection
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Static Random-Access Memory (AREA)
- Semiconductor Memories (AREA)
Description
図1は、本発明の第1の実施形態に係るSRAMの構成を示すブロック図である。SRAMは、複数のメモリセルアレイ(本実施形態では、4つのメモリセルアレイ11−1〜11−4を一例として示している)を備えている。4つのメモリセルアレイ11−1〜11−4は、カラム方向に隣接するように配置されている。各メモリセルアレイは、スタティック型の複数のメモリセルMCがマトリックス状に配置されて構成されている。
第2の実施形態は、隣接するメモリセルアレイでレプリカ制御回路を共有することで、SRAMの面積を削減するようにしている。
第3の実施形態は、第1のブロックBLK1と第2のブロックBLK2とでレプリカ制御回路を共有し、かつ第1のブロックBLK1と第2のブロックBLK2との間以外にレプリカ制御回路を配置するようにしている。
Claims (2)
- 行列状に配置された複数のメモリセルをそれぞれが含む複数のメモリセルアレイと、
各メモリセルアレイの列を選択する複数のローカルビット線と、
2つのメモリセルアレイごとに1つ設けられ、かつ前記メモリセルからローカルビット線を介して転送されるデータを検知する複数のローカルセンスアンプと、
前記複数のメモリセルアレイに共有され、かつ前記複数のローカルセンスアンプからデータが転送される複数のグローバルビット線と、
前記複数のローカルセンスアンプに対応して設けられ、かつ複数のレプリカセルをそれぞれが含む複数のレプリカセル群と、
前記複数のレプリカセル群にそれぞれ接続された複数のレプリカビット線と、
前記複数のレプリカビット線にそれぞれ接続され、かつ前記複数のレプリカビット線の電位に基づいて前記複数のローカルセンスアンプを活性化する複数の活性回路と、
前記複数のレプリカセルのうち前記レプリカビット線に接続されるレプリカセルの数を制御するレプリカ制御回路と、
を具備し、
前記レプリカ制御回路は、異なるローカルセンスアンプに接続された2つのレプリカセル群に共有されることを特徴とする半導体記憶装置。 - 前記レプリカ制御回路は、前記2つのレプリカセル群の間に配置されることを特徴とする請求項1に記載の半導体記憶装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007009397A JP5019579B2 (ja) | 2007-01-18 | 2007-01-18 | 半導体記憶装置 |
US12/015,244 US7710808B2 (en) | 2007-01-18 | 2008-01-16 | Semiconductor memory device including a static memory cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007009397A JP5019579B2 (ja) | 2007-01-18 | 2007-01-18 | 半導体記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008177360A JP2008177360A (ja) | 2008-07-31 |
JP5019579B2 true JP5019579B2 (ja) | 2012-09-05 |
Family
ID=39641029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007009397A Expired - Fee Related JP5019579B2 (ja) | 2007-01-18 | 2007-01-18 | 半導体記憶装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7710808B2 (ja) |
JP (1) | JP5019579B2 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8355269B1 (en) * | 2008-11-24 | 2013-01-15 | Esilicon Corporation | Pushed-rule bit cells with new functionality |
JP5244713B2 (ja) * | 2009-06-24 | 2013-07-24 | パナソニック株式会社 | 半導体記憶装置 |
JP2011034614A (ja) * | 2009-07-30 | 2011-02-17 | Elpida Memory Inc | 半導体装置及びこれを備えるシステム |
US8179735B2 (en) * | 2010-03-26 | 2012-05-15 | Taiwan Semiconductor Manufacturing Company, Ltd. | Using differential signals to read data on a single-end port |
JP5777991B2 (ja) * | 2011-09-22 | 2015-09-16 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2013131262A (ja) * | 2011-12-20 | 2013-07-04 | Elpida Memory Inc | 半導体装置 |
JP6029434B2 (ja) | 2012-11-27 | 2016-11-24 | ルネサスエレクトロニクス株式会社 | 半導体記憶装置 |
JP6337908B2 (ja) | 2013-11-27 | 2018-06-06 | 株式会社ソシオネクスト | 半導体記憶装置 |
US10748583B2 (en) * | 2017-12-21 | 2020-08-18 | Arm Limited | Dummy bitline circuitry |
KR102407226B1 (ko) * | 2018-01-08 | 2022-06-10 | 에스케이하이닉스 주식회사 | 반도체 장치 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0278268A (ja) * | 1988-09-14 | 1990-03-19 | Hitachi Ltd | 半導体集積回路装置 |
JPH05299611A (ja) * | 1992-04-24 | 1993-11-12 | Hitachi Ltd | 半導体集積回路装置の形成方法 |
JP3542225B2 (ja) * | 1996-03-19 | 2004-07-14 | 株式会社日立製作所 | 半導体装置 |
JP4347998B2 (ja) * | 2000-08-07 | 2009-10-21 | 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 |
US6600341B2 (en) * | 2001-05-01 | 2003-07-29 | Lattice Semiconductor Corp. | Integrated circuit and associated design method using spare gate islands |
JP2003141876A (ja) * | 2001-11-01 | 2003-05-16 | Matsushita Electric Ind Co Ltd | 半導体記憶装置 |
US6862230B2 (en) * | 2002-03-19 | 2005-03-01 | Broadcom Corporation | Efficient column redundancy techniques |
US6687171B2 (en) * | 2002-04-26 | 2004-02-03 | Infineon Technologies Aktiengesellschaft | Flexible redundancy for memories |
JP4152668B2 (ja) * | 2002-04-30 | 2008-09-17 | 株式会社ルネサステクノロジ | 半導体記憶装置 |
JP4408610B2 (ja) * | 2002-08-09 | 2010-02-03 | 株式会社ルネサステクノロジ | スタティック型半導体記憶装置 |
KR100480618B1 (ko) * | 2002-09-09 | 2005-03-31 | 삼성전자주식회사 | 개선된 리던던시 스킴을 가지는 반도체 메모리 장치 |
JP4050690B2 (ja) * | 2003-11-21 | 2008-02-20 | 株式会社東芝 | 半導体集積回路装置 |
WO2005052944A1 (ja) * | 2003-11-28 | 2005-06-09 | Fujitsu Limited | セルフタイミング回路を有する半導体メモリ |
JP4044538B2 (ja) * | 2004-06-15 | 2008-02-06 | 株式会社東芝 | 半導体装置 |
-
2007
- 2007-01-18 JP JP2007009397A patent/JP5019579B2/ja not_active Expired - Fee Related
-
2008
- 2008-01-16 US US12/015,244 patent/US7710808B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7710808B2 (en) | 2010-05-04 |
JP2008177360A (ja) | 2008-07-31 |
US20080175040A1 (en) | 2008-07-24 |
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