JP2010146620A - 半導体記憶装置 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 28
- 230000004913 activation Effects 0.000 claims abstract description 30
- 230000004044 response Effects 0.000 claims description 6
- 230000009849 deactivation Effects 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 abstract description 6
- 230000000415 inactivating effect Effects 0.000 abstract 1
- 102100030511 Stanniocalcin-1 Human genes 0.000 description 21
- 101000701440 Homo sapiens Stanniocalcin-1 Proteins 0.000 description 19
- 238000010586 diagram Methods 0.000 description 17
- 101100371340 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TYE7 gene Proteins 0.000 description 10
- 101100139861 Arabidopsis thaliana RL2 gene Proteins 0.000 description 4
- 101100037606 Pisum sativum RMS3 gene Proteins 0.000 description 4
- YAVQULWQXQRTKS-UHFFFAOYSA-N RMS3 Natural products C1=C(O)C(OC)=CC(CC2C(C(=O)OC2)(CC=2C=C(OC)C(O)=CC=2)OC2C(C(O)C(O)C(CO)O2)O)=C1 YAVQULWQXQRTKS-UHFFFAOYSA-N 0.000 description 4
- 101100141529 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RKM4 gene Proteins 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000002779 inactivation Effects 0.000 description 2
- 102100035606 Beta-casein Human genes 0.000 description 1
- 101100279959 Gibberella fujikuroi (strain CBS 195.34 / IMI 58289 / NRRL A-6831) STC3 gene Proteins 0.000 description 1
- 101000947120 Homo sapiens Beta-casein Proteins 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/08—Word line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, for word lines
-
- 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
-
- 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
- G11C11/4076—Timing circuits
-
- 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
- G11C11/408—Address circuits
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- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Dram (AREA)
Abstract
【解決手段】アドレス信号に基づいて選択される複数の回路領域をそれぞれ有し、対応するバンク選択信号(ソーストランジスタ制御信号STC1〜STC4)によって選択される複数のメモリバンク21〜24と、バンク選択信号に基づいて選択されるメモリバンクに含まれる複数の回路領域のうち、アドレス信号PX0〜PX7に基づいていずれかの回路領域を活性化させるとともに、残りの回路領域の少なくとも一つを非活性化させる選択的活性化回路200とを備える。本発明によれば、外部コマンドによる一括制御ではなく、アドレス信号に応じたダイナミックな制御によって、アクティブ時における消費電力を削減することが可能となる。
【選択図】図3
Description
20 メモリセルアレイ
21〜24 メモリバンク
30 行デコーダ
31 行デコーダ列
32 行プリデコーダ
40 列デコーダ
41 カラム選択回路群
42 列プリデコーダ
50 データアンプ
60 アドレスバッファ
70 コマンドデコーダ
80,81・・・ メインワードドライバ
90,91・・・ センスアンプコントローラ
100 ソーストランジスタ制御回路
110 SRラッチ回路
120 パルス生成回路
130 インバータ
200,300 選択的活性化回路
400,401・・・ カラム選択回路
N1,N2 ソーストランジスタ
P1〜P3 ソーストランジスタ
Claims (10)
- アドレス信号に基づいて選択される複数の回路領域をそれぞれ有し、対応するバンク選択信号によって選択される複数のメモリバンクと、
前記バンク選択信号に基づいて選択されるメモリバンクに含まれる前記複数の回路領域のうち、前記アドレス信号に基づいていずれかの回路領域を活性化させるとともに、残りの回路領域の少なくとも一つを非活性化させる選択的活性化回路と、を備えることを特徴とする半導体記憶装置。 - 前記複数の回路領域は、主電源配線と、疑似電源配線と、前記主電源配線と前記疑似電源配線との間に接続されたスイッチと、前記主電源配線及び前記疑似電源配線に接続された論理回路とを含み、
前記選択的活性化回路は、前記アドレス信号及び前記バンク選択信号に基づいて、活性化させる回路領域に含まれる前記スイッチをオンさせ、非活性化させる回路領域に含まれる前記スイッチをオフさせることを特徴とする請求項1に記載の半導体記憶装置。 - 前記複数の回路領域はワードドライバを含んでおり、
前記選択的活性化回路は、前記アドレス信号のうち行アドレス信号及び前記バンク選択信号に基づいて、選択されたワードドライバを活性化させるとともに、残りのワードドライバを非活性化させることを特徴とする請求項1又は2に記載の半導体記憶装置。 - 前記行アドレスの一部をデコードすることによりプリデコード信号を生成する行プリデコーダをさらに備え、
前記プリデコード信号の各ビットは、それぞれ前記複数の回路領域に含まれるワードドライバに対応しており、
前記選択的活性化回路は、前記プリデコード信号及び前記バンク選択信号に基づいて、前記ワードドライバの活性化及び非活性化を制御することを特徴とする請求項3に記載の半導体記憶装置。 - 前記複数の回路領域は2以上のプリデコード信号のいずれが活性状態であっても選択されるセンスアンプコントローラをさらに含んでおり、
前記選択的活性化回路は、前記プリデコード信号及び前記バンク選択信号に基づいて、選択されたセンスアンプコントローラを活性化させるとともに、残りのセンスアンプコントローラを非活性化させることを特徴とする請求項4に記載の半導体記憶装置。 - 前記バンク選択信号は、前記行アドレスの入力に応答して活性化し、前記メモリバンクのセンス動作完了に応答して非活性化し、
前記選択的活性化回路は、前記バンク選択信号及び対応する前記プリデコード信号の少なくとも一方が活性状態であるワードドライバを活性化させることを特徴とする請求項4又は5に記載の半導体記憶装置。 - 前記複数の回路領域はカラム選択回路を含んでおり、
前記選択的活性化回路は、前記アドレス信号のうち列アドレス信号及び前記バンク選択信号に基づいて、前記カラム選択回路の活性化及び非活性化を制御することを特徴とする請求項1乃至6のいずれか一項に記載の半導体記憶装置。 - ワード線及びビット線に接続された複数のメモリセルを有するメモリバンクと、
複数のワードドライバを含み、行アドレスに基づいて前記ワード線の選択を行う行デコーダと、
列アドレスに基づいて前記ビット線の選択を行う列デコーダと、
前記行アドレスに基づいて、前記複数のワードドライバのいずれかを活性化させ、残りのワードドライバを非活性化させる選択的活性化回路と、を備え、
前記ワードドライバは、主電源配線と、疑似電源配線と、前記主電源配線と前記疑似電源配線との間に接続されたスイッチと、前記主電源配線及び前記疑似電源配線に接続された論理回路とを含み、
前記選択的活性化回路は、活性化させる前記ワードドライバに含まれる前記スイッチをオンさせ、非活性化させる前記ワードドライバに含まれる前記スイッチをオフさせることを特徴とする半導体記憶装置。 - 前記選択的活性化回路は、いずれのワードドライバを活性化させるかに関わらず前記複数のワードドライバを全て活性化させ、その後、前記残りのワードドライバを非活性化させることを特徴とする請求項8に記載の半導体記憶装置。
- 前記選択的活性化回路は、前記メモリバンクのセンス動作完了に応答して、前記残りのワードドライバを非活性化させることを特徴とする請求項9に記載の半導体記憶装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008320637A JP2010146620A (ja) | 2008-12-17 | 2008-12-17 | 半導体記憶装置 |
| US12/639,730 US20100149900A1 (en) | 2008-12-17 | 2009-12-16 | Semiconductor memory device having selective activation circuit for selectively activating circuit areas |
| US13/463,902 US8588023B2 (en) | 2008-12-17 | 2012-05-04 | Semiconductor memory device having selective activation circuit for selectively activating circuit areas |
| US14/031,125 US9263110B2 (en) | 2008-12-17 | 2013-09-19 | Semiconductor memory device having selective activation circuit for selectively activating circuit areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008320637A JP2010146620A (ja) | 2008-12-17 | 2008-12-17 | 半導体記憶装置 |
Publications (1)
| Publication Number | Publication Date |
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| JP2010146620A true JP2010146620A (ja) | 2010-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2008320637A Pending JP2010146620A (ja) | 2008-12-17 | 2008-12-17 | 半導体記憶装置 |
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|---|---|
| US (3) | US20100149900A1 (ja) |
| JP (1) | JP2010146620A (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014132865A1 (ja) * | 2013-02-28 | 2014-09-04 | ピーエスフォー ルクスコ エスエイアールエル | 半導体装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013196740A (ja) | 2012-03-22 | 2013-09-30 | Toshiba Corp | 半導体記憶装置およびその駆動方法 |
| US9082368B2 (en) * | 2012-10-12 | 2015-07-14 | Samsung Electronics Co., Ltd. | Semiconductor devices having image sensor and memory device operation modes |
| US9679929B2 (en) | 2012-10-12 | 2017-06-13 | Samsung Electronics Co., Ltd. | Binary image sensors including quantum dots and unit pixels thereof |
| US9323317B2 (en) * | 2012-12-12 | 2016-04-26 | International Business Machines Corporation | System and methods for DIMM-targeted power saving for hypervisor systems |
| JP6808414B2 (ja) * | 2016-09-21 | 2021-01-06 | キヤノン株式会社 | 情報処理装置、その制御方法、及びプログラム |
| US10522210B2 (en) | 2017-12-14 | 2019-12-31 | Micron Technology, Inc. | Apparatuses and methods for subarray addressing |
| US10332586B1 (en) * | 2017-12-19 | 2019-06-25 | Micron Technology, Inc. | Apparatuses and methods for subrow addressing |
| US10847207B2 (en) | 2019-04-08 | 2020-11-24 | Micron Technology, Inc. | Apparatuses and methods for controlling driving signals in semiconductor devices |
| US10910027B2 (en) | 2019-04-12 | 2021-02-02 | Micron Technology, Inc. | Apparatuses and methods for controlling word line discharge |
| US10937476B2 (en) | 2019-06-24 | 2021-03-02 | Micron Technology, Inc. | Apparatuses and methods for controlling word line discharge |
| US10854272B1 (en) | 2019-06-24 | 2020-12-01 | Micron Technology, Inc. | Apparatuses and methods for controlling word line discharge |
| US10854273B1 (en) | 2019-06-24 | 2020-12-01 | Micron Technology, Inc. | Apparatuses and methods for controlling word drivers |
| US10854274B1 (en) | 2019-09-26 | 2020-12-01 | Micron Technology, Inc. | Apparatuses and methods for dynamic timing of row pull down operations |
| US11205470B2 (en) | 2020-04-20 | 2021-12-21 | Micron Technology, Inc. | Apparatuses and methods for providing main word line signal with dynamic well |
| US11990175B2 (en) | 2022-04-01 | 2024-05-21 | Micron Technology, Inc. | Apparatuses and methods for controlling word line discharge |
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2008
- 2008-12-17 JP JP2008320637A patent/JP2010146620A/ja active Pending
-
2009
- 2009-12-16 US US12/639,730 patent/US20100149900A1/en not_active Abandoned
-
2012
- 2012-05-04 US US13/463,902 patent/US8588023B2/en active Active
-
2013
- 2013-09-19 US US14/031,125 patent/US9263110B2/en active Active
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| WO2014132865A1 (ja) * | 2013-02-28 | 2014-09-04 | ピーエスフォー ルクスコ エスエイアールエル | 半導体装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120224447A1 (en) | 2012-09-06 |
| US9263110B2 (en) | 2016-02-16 |
| US20100149900A1 (en) | 2010-06-17 |
| US8588023B2 (en) | 2013-11-19 |
| US20140016427A1 (en) | 2014-01-16 |
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