KR100680563B1 - 불휘발성 반도체 기억장치 - Google Patents
불휘발성 반도체 기억장치 Download PDFInfo
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- KR100680563B1 KR100680563B1 KR1020050003739A KR20050003739A KR100680563B1 KR 100680563 B1 KR100680563 B1 KR 100680563B1 KR 1020050003739 A KR1020050003739 A KR 1020050003739A KR 20050003739 A KR20050003739 A KR 20050003739A KR 100680563 B1 KR100680563 B1 KR 100680563B1
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- film
- variable resistor
- memory device
- amorphous
- semiconductor memory
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- 239000004065 semiconductor Substances 0.000 title claims description 38
- 239000013078 crystal Substances 0.000 claims abstract description 33
- 238000000137 annealing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 12
- ZGDMLJRSIWVGIF-UHFFFAOYSA-N calcium manganese(2+) oxygen(2-) praseodymium(3+) Chemical compound [O-2].[Mn+2].[Ca+2].[Pr+3] ZGDMLJRSIWVGIF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 29
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- 230000015572 biosynthetic process Effects 0.000 abstract description 24
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910004200 TaSiN Inorganic materials 0.000 description 2
- 229910008482 TiSiN Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
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- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
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- 239000010703 silicon Substances 0.000 description 2
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- 230000003685 thermal hair damage Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910004121 SrRuO Inorganic materials 0.000 description 1
- 229910004166 TaN Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910003087 TiOx Inorganic materials 0.000 description 1
- ZGSDJUMAHIFXBJ-UHFFFAOYSA-N [Mn].[Ca].[Pr] Chemical compound [Mn].[Ca].[Pr] ZGSDJUMAHIFXBJ-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 nitride compounds Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Images
Classifications
-
- 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
- G11C13/003—Cell access
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/30—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having three or more electrodes, e.g. transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/021—Formation of switching materials, e.g. deposition of layers
- H10N70/026—Formation of switching materials, e.g. deposition of layers by physical vapor deposition, e.g. sputtering
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/041—Modification of switching materials after formation, e.g. doping
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
- H10N70/826—Device geometry adapted for essentially vertical current flow, e.g. sandwich or pillar type devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/883—Oxides or nitrides
- H10N70/8836—Complex metal oxides, e.g. perovskites, spinels
-
- 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
- G11C2213/78—Array wherein the memory cells of a group share an access device, all the memory cells of the group having a common electrode and the access device being not part of a word line or a bit line driver
-
- 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)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (7)
- 페로브스카이트형 금속산화막으로 이루어지는 가변저항체를 갖는 가변저항소자를 구비하는 불휘발성 반도체 기억장치로서,상기 가변저항체는 비결정막중에 결정영역이 점재하도록 결정과 비결정이 혼재된 상태로 막형성되어 있는 것을 특징으로 하는 불휘발성 반도체 기억장치.
- 제1항에 있어서, 상기 가변저항소자가 하부전극과 상기 가변저항체와 상부전극을 순서대로 적층해서 이루어지는 것을 특징으로 하는 불휘발성 반도체 기억장치.
- 제1항에 있어서, 상기 가변저항체가 350℃∼500℃의 범위내의 막형성 온도에서 막형성된 일반식 Pr1-xCaxMnO3로 나타내어지는 프라세오디뮴·칼슘·망간 산화물인 것을 특징으로 하는 불휘발성 반도체 기억장치.
- 제1항에 있어서, 상기 가변저항체가 최하층의 금속배선층보다 상층에 형성되어 있는 것을 특징으로 하는 불휘발성 반도체 기억장치.
- 제1항에 있어서, 상기 가변저항체가 비결정상태 또는 결정과 비결정이 혼재 된 상태로 되는 막형성 온도에서 막형성 된 후에, 상기 막형성 온도보다 고온에서, 또한, 상기 가변저항체가 결정과 비결정이 혼재된 상태를 유지가능한 온도범위에서 어닐링처리되어 형성되는 것을 특징으로 하는 불휘발성 반도체 기억장치.
- 제5항에 있어서, 상기 막형성 온도가 500℃이하인 것을 특징으로 하는 불휘발성 반도체 기억장치.
- 제5항에 있어서, 상기 가변저항체가 일반식 Pr1-xCaxMnO3로 나타내어지는 프라세오디뮴·칼슘·망간 산화물인 것을 특징으로 하는 불휘발성 반도체 기억장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2004-00006321 | 2004-01-14 | ||
JP2004006321A JP2005203463A (ja) | 2004-01-14 | 2004-01-14 | 不揮発性半導体記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050074928A KR20050074928A (ko) | 2005-07-19 |
KR100680563B1 true KR100680563B1 (ko) | 2007-02-08 |
Family
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Application Number | Title | Priority Date | Filing Date |
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KR1020050003739A KR100680563B1 (ko) | 2004-01-14 | 2005-01-14 | 불휘발성 반도체 기억장치 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7259387B2 (ko) |
EP (1) | EP1555693B1 (ko) |
JP (1) | JP2005203463A (ko) |
KR (1) | KR100680563B1 (ko) |
CN (1) | CN1641879A (ko) |
DE (1) | DE602005008652D1 (ko) |
TW (1) | TWI255035B (ko) |
Cited By (1)
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WO2010150957A1 (ko) * | 2009-06-23 | 2010-12-29 | 광주과학기술원 | 비휘발성 저항 변화 메모리 소자 |
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