KR100554308B1 - 반도체 메모리장치 및 데이터기록방법 - Google Patents
반도체 메모리장치 및 데이터기록방법 Download PDFInfo
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- KR100554308B1 KR100554308B1 KR1020030087207A KR20030087207A KR100554308B1 KR 100554308 B1 KR100554308 B1 KR 100554308B1 KR 1020030087207 A KR1020030087207 A KR 1020030087207A KR 20030087207 A KR20030087207 A KR 20030087207A KR 100554308 B1 KR100554308 B1 KR 100554308B1
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- variable resistor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 33
- 230000015654 memory Effects 0.000 claims abstract description 261
- 239000013078 crystal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 description 16
- 238000012795 verification Methods 0.000 description 12
- 239000000758 substrate Substances 0.000 description 7
- 239000002784 hot electron Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0021—Auxiliary circuits
- G11C13/0069—Writing or programming circuits or methods
-
- 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
- G11C11/56—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
- G11C11/5685—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using storage elements comprising metal oxide memory material, e.g. perovskites
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0007—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements comprising metal oxide memory material, e.g. perovskites
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0021—Auxiliary circuits
- G11C13/0064—Verifying circuits or methods
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0021—Auxiliary circuits
- G11C13/0097—Erasing, e.g. resetting, circuits or methods
-
- 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
- G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
- G11C16/3404—Convergence or correction of memory cell threshold voltages; Repair or recovery of overerased or overprogrammed cells
- G11C16/3413—Circuits or methods to recover overprogrammed nonvolatile memory cells detected during program verification, usually by means of a "soft" erasing step
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0021—Auxiliary circuits
- G11C13/0069—Writing or programming circuits or methods
- G11C2013/0073—Write using bi-directional cell biasing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/30—Resistive cell, memory material aspects
- G11C2213/31—Material having complex metal oxide, e.g. perovskite structure
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/70—Resistive array aspects
- G11C2213/79—Array wherein the access device being a transistor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Computer Hardware Design (AREA)
- Read Only Memory (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
Description
Claims (10)
- 복수의 메모리셀을 포함하는 반도체 메모리장치로서,상기 복수의 메모리셀의 하나는 인가된 전압에 따라 가역적으로 변화하는 저항값을 가지는 가변저항기와, 상기 가변저항기에 접속된 MOS 트랜지스터를 포함하고,상기 MOS 트랜지스터는 소스, 게이트 및 드레인을 포함하고, 상기 소스와 상기 드레인 중의 하나가 상기 가변저항기를 통해 비트선에 접속되고, 상기 게이트가 단어선에 접속되는 것을 특징으로 하는 반도체 메모리장치.
- 삭제
- 제 1 항에 있어서, 상기 가변저항기의 저항값은 복수의 중첩되지 않는 범위에 도달하도록 설정되는 것을 특징으로 하는 반도체 메모리장치.
- 제 1 항에 있어서, 상기 가변저항기가 페로브스카이트형 결정구조를 가지는 재료로 형성되는 것을 특징으로 하는 반도체 메모리장치.
- 삭제
- 제 5 항에 있어서, 소정 극성의 전압이 상기 비트선에 인가되고, 상기 소정 극성의 전압보다 낮은 전압이 상기 단어선에 인가되어, 상기 하나의 메모리셀이 상기 복수의 메모리셀로부터 선택되고, 데이터가 상기 하나의 메모리셀에 기록되는 것을 특징으로 하는 반도체 메모리장치.
- 제 6 항에 있어서, 상기 소정 극성에 반대인 극성의 전압이 상기 비트선에 인가되고, 상기 소정 극성의 전압보다 낮은 전압이 상기 단어선에 인가되어, 상기 하나의 메모리셀이 상기 복수의 메모리셀로부터 선택되고, 데이터가 상기 하나의 메모리셀로부터 소거되는 것을 특징으로 하는 반도체 메모리장치.
- 인가되는 전압에 따라 가역적으로 변화하는 저항값을 가진 가변저항기와, 상기 가변저항기에 접속된 트랜지스터를 포함하는 메모리셀에 데이터를 기록하기 위한 데이터기록방법으로서,상기 메모리셀에 제 1 데이터기록전압을 인가하는 제 1 단계;상기 제 1 데이터기록전압이 인가된 후에, 상기 가변저항기의 저항값이 소정 범위 내인지 여부를 결정하는 제 2 단계;상기 가변저항기의 저항값이 상기 소정 범위에 도달하지 않은 경우, 상기 제 1 데이터기록전압보다 높은 제 2 데이터기록전압을 상기 메모리셀에 인가하는 제 3 단계; 및상기 가변저항기의 저항값이 상기 소정 범위에 도달할 때까지 상기 제 2 단 계와 제 3 단계를 반복하는 제 4 단계를 포함하는 것을 특징으로 하는 데이터기록방법.
- 제 8 항에 있어서,상기 가변저항기의 저항값이 상기 소정 범위를 초과하는 경우, 상기 가변저항기에 데이터소거전압을 인가하는 제 5 단계;상기 데이터소거전압이 인가된 후에, 상기 가변저항기의 저항값이 데이터소거범위에 도달하였는지 여부를 결정하는 제 6 단계; 및상기 가변저항기의 저항값이 상기 데이터소거범위에 도달할 때까지 상기 제 5 단계와 제 6 단계를 반복하고, 그후 제 1 데이터기록전압을 상기 메모리셀에 인가하는 제 7 단계를 더 포함하는 것을 특징으로 하는 데이터기록방법.
- 제 8 항에 있어서, 상기 제 3 단계는, 상기 1 단계에서 상기 제 1 데이터기록전압이 인가되는 시간보다 짧은 시간 동안 상기 제 2 데이터기록전압을 인가하는 단계를 포함하는 것을 특징으로 하는 데이터기록방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002351832A JP4187148B2 (ja) | 2002-12-03 | 2002-12-03 | 半導体記憶装置のデータ書き込み制御方法 |
JPJP-P-2002-00351832 | 2002-12-03 |
Publications (2)
Publication Number | Publication Date |
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KR20040048854A KR20040048854A (ko) | 2004-06-10 |
KR100554308B1 true KR100554308B1 (ko) | 2006-02-24 |
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KR1020030087207A KR100554308B1 (ko) | 2002-12-03 | 2003-12-03 | 반도체 메모리장치 및 데이터기록방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7061790B2 (ko) |
EP (1) | EP1426975B1 (ko) |
JP (1) | JP4187148B2 (ko) |
KR (1) | KR100554308B1 (ko) |
CN (1) | CN100388388C (ko) |
TW (1) | TWI238414B (ko) |
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JP2005339589A (ja) * | 2004-05-24 | 2005-12-08 | Matsushita Electric Ind Co Ltd | 不揮発性メモリーの電気抵抗値設定方法 |
JP4189395B2 (ja) * | 2004-07-28 | 2008-12-03 | シャープ株式会社 | 不揮発性半導体記憶装置及び読み出し方法 |
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US7453716B2 (en) * | 2004-10-26 | 2008-11-18 | Samsung Electronics Co., Ltd | Semiconductor memory device with stacked control transistors |
JP4524455B2 (ja) * | 2004-11-26 | 2010-08-18 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
KR101193395B1 (ko) * | 2005-04-22 | 2012-10-25 | 파나소닉 주식회사 | 비휘발성 메모리 셀 및 반도체 메모리 장치 |
US7259983B2 (en) * | 2005-05-27 | 2007-08-21 | Spansion Llc | Page buffer architecture for programming, erasing and reading nanoscale resistive memory devices |
JP2007018615A (ja) * | 2005-07-08 | 2007-01-25 | Sony Corp | 記憶装置及び半導体装置 |
US7372725B2 (en) * | 2005-08-15 | 2008-05-13 | Infineon Technologies Ag | Integrated circuit having resistive memory |
JP4309877B2 (ja) * | 2005-08-17 | 2009-08-05 | シャープ株式会社 | 半導体記憶装置 |
US7463507B2 (en) * | 2005-11-09 | 2008-12-09 | Ulrike Gruening-Von Schwerin | Memory device with a plurality of memory cells, in particular PCM memory cells, and method for operating such a memory cell device |
JP2007294592A (ja) * | 2006-04-24 | 2007-11-08 | Sony Corp | 記憶装置の駆動方法 |
WO2008007481A1 (en) * | 2006-07-14 | 2008-01-17 | Murata Manufacturing Co., Ltd. | Resistive memory device |
US7372753B1 (en) * | 2006-10-19 | 2008-05-13 | Unity Semiconductor Corporation | Two-cycle sensing in a two-terminal memory array having leakage current |
US7379364B2 (en) * | 2006-10-19 | 2008-05-27 | Unity Semiconductor Corporation | Sensing a signal in a two-terminal memory array having leakage current |
JP5253784B2 (ja) * | 2007-10-17 | 2013-07-31 | 株式会社東芝 | 不揮発性半導体記憶装置 |
KR101237005B1 (ko) | 2007-11-09 | 2013-02-26 | 삼성전자주식회사 | 저항체를 이용한 비휘발성 메모리 장치, 이를 포함하는메모리 시스템, 및 이의 구동 방법 |
JP2009146478A (ja) | 2007-12-12 | 2009-07-02 | Sony Corp | 記憶装置および情報再記録方法 |
CN101952893B (zh) | 2008-02-25 | 2013-09-11 | 松下电器产业株式会社 | 电阻变化元件的驱动方法及使用它的电阻变化型存储装置 |
US7826248B2 (en) | 2008-05-20 | 2010-11-02 | Seagate Technology Llc | Write verify method for resistive random access memory |
CN101599301B (zh) * | 2008-06-06 | 2012-09-05 | 西格斯教育资本有限责任公司 | 存储器与存储器写入方法 |
JP2010225221A (ja) * | 2009-03-23 | 2010-10-07 | Toshiba Corp | 半導体記憶装置 |
JP5269151B2 (ja) * | 2011-06-09 | 2013-08-21 | シャープ株式会社 | 半導体記憶装置 |
US9047945B2 (en) | 2012-10-15 | 2015-06-02 | Marvell World Trade Ltd. | Systems and methods for reading resistive random access memory (RRAM) cells |
US9042159B2 (en) * | 2012-10-15 | 2015-05-26 | Marvell World Trade Ltd. | Configuring resistive random access memory (RRAM) array for write operations |
US8885388B2 (en) | 2012-10-24 | 2014-11-11 | Marvell World Trade Ltd. | Apparatus and method for reforming resistive memory cells |
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2002
- 2002-12-03 JP JP2002351832A patent/JP4187148B2/ja not_active Expired - Fee Related
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2003
- 2003-12-03 TW TW092134026A patent/TWI238414B/zh not_active IP Right Cessation
- 2003-12-03 KR KR1020030087207A patent/KR100554308B1/ko active IP Right Grant
- 2003-12-03 CN CNB2003101225447A patent/CN100388388C/zh not_active Expired - Fee Related
- 2003-12-03 EP EP03257605A patent/EP1426975B1/en not_active Expired - Lifetime
- 2003-12-03 US US10/728,176 patent/US7061790B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JP4187148B2 (ja) | 2008-11-26 |
EP1426975A2 (en) | 2004-06-09 |
JP2004185723A (ja) | 2004-07-02 |
TW200425149A (en) | 2004-11-16 |
CN100388388C (zh) | 2008-05-14 |
KR20040048854A (ko) | 2004-06-10 |
CN1510690A (zh) | 2004-07-07 |
US20040174739A1 (en) | 2004-09-09 |
EP1426975B1 (en) | 2012-08-08 |
TWI238414B (en) | 2005-08-21 |
US7061790B2 (en) | 2006-06-13 |
EP1426975A3 (en) | 2006-03-22 |
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