KR100767333B1 - 계면 제어층을 포함하는 비휘발성 전기적 상변화 메모리소자 및 이의 제조방법 - Google Patents
계면 제어층을 포함하는 비휘발성 전기적 상변화 메모리소자 및 이의 제조방법 Download PDFInfo
- Publication number
- KR100767333B1 KR100767333B1 KR1020060046409A KR20060046409A KR100767333B1 KR 100767333 B1 KR100767333 B1 KR 100767333B1 KR 1020060046409 A KR1020060046409 A KR 1020060046409A KR 20060046409 A KR20060046409 A KR 20060046409A KR 100767333 B1 KR100767333 B1 KR 100767333B1
- Authority
- KR
- South Korea
- Prior art keywords
- phase change
- layer
- change material
- lower electrode
- electrode
- Prior art date
Links
- 230000008859 change Effects 0.000 title claims description 52
- 238000000034 method Methods 0.000 title claims description 31
- 239000010410 layer Substances 0.000 claims abstract description 125
- 239000012782 phase change material Substances 0.000 claims abstract description 76
- 239000011229 interlayer Substances 0.000 claims abstract description 28
- 239000007772 electrode material Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- 238000000151 deposition Methods 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000000059 patterning Methods 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910010037 TiAlN Inorganic materials 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 2
- 150000002500 ions Chemical class 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 8
- 239000012071 phase Substances 0.000 description 66
- 230000015654 memory Effects 0.000 description 25
- 230000003647 oxidation Effects 0.000 description 21
- 238000007254 oxidation reaction Methods 0.000 description 21
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 150000004770 chalcogenides Chemical class 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000003252 repetitive effect Effects 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000001020 plasma etching Methods 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000000609 electron-beam lithography Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001552 radio frequency sputter deposition Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 229910052714 tellurium Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000032368 Device malfunction Diseases 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910003077 Ti−O Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000000879 optical micrograph Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Images
Classifications
-
- 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
- H10N70/061—Shaping switching materials
- H10N70/063—Shaping switching materials by etching of pre-deposited switching material layers, e.g. lithography
-
- 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
- H10N70/823—Device geometry adapted for essentially horizontal current flow, e.g. bridge 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
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/231—Multistable switching devices, e.g. memristors based on solid-state phase change, e.g. between amorphous and crystalline phases, Ovshinsky effect
-
- 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
- G11C13/0004—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 amorphous/crystalline phase transition cells
-
- 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
- H10N70/801—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
- H10N70/841—Electrodes
- H10N70/8413—Electrodes adapted for resistive heating
-
- 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
- H10N70/882—Compounds of sulfur, selenium or tellurium, e.g. chalcogenides
- H10N70/8828—Tellurides, e.g. GeSbTe
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (10)
- 실리콘 기판 상에 제 1 층간 절연층, 하부 전극층, 제 2 층간 절연층, 상변화 물질층 및 상부 전극층이 차례로 형성되어 있고, 상기 제 2 층간 절연층을 수직 방향으로 관통하여 상기 상변화 물질층 및 하부 전극층을 연결하는 접촉 구멍 (contact hole)이 구비되어 그 내부에 상기 상변화 물질 또는 하부 전극 물질이 채워져 있으며, 이때 상변화 물질과 하부 전극 물질이 만나는 접촉면에, 상변화 물질과의 화학적 결합력이 크고 하부 전극 물질에 비해 전기적 비저항 및 열전도도가 낮은 계면 제어층이 형성되어 있는 구조를 갖는 것을 특징으로 하는, 비휘발성 전기적 상변화 메모리 소자.
- 제 1 항에 있어서,계면 제어층이, 접촉 구멍의 상단부 또는 하단부에서 상변화 물질층과 접촉하는 하부 전극 물질의 산화물 또는 상변화 물질층과는 다른 Ge-Sb-Te 계열 물질인 것을 특징으로 하는 메모리 소자.
- 제 2 항에 있어서,전극 물질의 산화물이 Ti, TiN, TiAlN, W 및 WN으로 이루어진 군에서 선택된 물질의 산화물인 것을 특징으로 하는 메모리 소자.
- 제 1 항에 있어서,계면 제어층은 두께가 20 ㎚ 이하인 것을 특징으로 하는 메모리 소자.
- 1) 실리콘 기판 위에 제 1 층간 절연층 및 하부 전극층을 차례로 증착하고 그 위에 다시 제 2 층간 절연층을 증착한 후, 포토 및 식각 공정을 통해서 상기 제 2 층간 절연층에 접촉 구멍을 형성하여 하부 전극을 노출시키거나 또는 형성된 접촉 구멍 안에 하부 전극 물질을 충진하여, 접촉 구멍의 하단부 또는 상단부에 접촉면을 형성하는 단계;2) 상기 접촉 구멍 내의 접촉면에, 상변화 물질과의 화학적 결합력이 크고 하부 전극 물질에 비해 전기적 비저항 및 열전도도가 낮은 계면 제어층을 형성하는 단계; 및3) 상기 계면 제어층을 포함하는 제 2 층간 절연층 위에 상변화 물질층과 상부 전극층을 차례로 증착하고 각각 포토 및 식각 공정을 통해 패터닝하는 단계를 포함하는 것을 특징으로 하는, 비휘발성 전기적 상변화 메모리 소자의 제조방법.
- 제 5 항에 있어서,계면 제어층이, 접촉면의 노출된 전극을 산소 분위기 하에서 열처리하거나 산소 플라즈마에 의해 산화시킴으로써 형성되는 것을 특징으로 하는 제조방법.
- 제 5 항에 있어서,계면 제어층이, 접촉면의 노출된 전극에 이온을 주입하여 전극 산화물을 증착시킴으로써 형성되는 것을 특징으로 하는 제조방법.
- 제 5 항에 있어서,계면 제어층이, 접촉면의 노출된 전극 상에 별도의 전극 산화물을 증착시킴으로써 형성되는 것을 특징으로 하는 제조방법.
- 제 5 항에 있어서,계면 제어층이, 접촉면의 노출된 전극 상에 Ge-Sb-Te 계열의 상변화 물질을 증착시킴으로써 형성되는 것을 특징으로 하는 제조방법.
- 제 6 내지 8 항 중 어느 한 항에 있어서,전극 산화물이, Ti, TiN, TiAlN, W 및 WN으로 이루어진 군에서 선택된 물질의 산화물인 것을 특징으로 하는 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060046409A KR100767333B1 (ko) | 2006-05-24 | 2006-05-24 | 계면 제어층을 포함하는 비휘발성 전기적 상변화 메모리소자 및 이의 제조방법 |
US11/805,827 US7851778B2 (en) | 2006-05-24 | 2007-05-24 | Non-volatile electrical phase change memory device comprising interfacial control layer and method for the preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060046409A KR100767333B1 (ko) | 2006-05-24 | 2006-05-24 | 계면 제어층을 포함하는 비휘발성 전기적 상변화 메모리소자 및 이의 제조방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100767333B1 true KR100767333B1 (ko) | 2007-10-17 |
Family
ID=38748756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060046409A KR100767333B1 (ko) | 2006-05-24 | 2006-05-24 | 계면 제어층을 포함하는 비휘발성 전기적 상변화 메모리소자 및 이의 제조방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7851778B2 (ko) |
KR (1) | KR100767333B1 (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7906774B2 (en) * | 2008-02-01 | 2011-03-15 | Industrial Technology Research Institute | Phase change memory device |
JP2011199215A (ja) * | 2010-03-24 | 2011-10-06 | Hitachi Ltd | 半導体記憶装置 |
US8247789B2 (en) | 2010-08-31 | 2012-08-21 | Micron Technology, Inc. | Memory cells and methods of forming memory cells |
US8283785B2 (en) | 2010-09-20 | 2012-10-09 | Micron Technology, Inc. | Interconnect regions |
SG185902A1 (en) * | 2011-05-19 | 2012-12-28 | Agency Science Tech & Res | A phase-change memory and a method of programming the same |
US9543515B2 (en) * | 2013-11-07 | 2017-01-10 | Intel Corporation | Electrode materials and interface layers to minimize chalcogenide interface resistance |
US10714175B2 (en) * | 2017-10-10 | 2020-07-14 | ARM, Ltd. | Method, system and device for testing correlated electron switch (CES) devices |
US20220199899A1 (en) * | 2020-12-22 | 2022-06-23 | International Business Machines Corporation | Transfer length phase change material (pcm) based bridge cell |
CN112909161B (zh) * | 2021-01-05 | 2022-03-11 | 华中科技大学 | 一种具有缓冲层的低功耗的相变存储单元及其制备方法 |
CN113594202A (zh) * | 2021-07-07 | 2021-11-02 | 长江先进存储产业创新中心有限责任公司 | 相变存储器及其制作方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050115539A (ko) * | 2004-06-04 | 2005-12-08 | 비욘드마이크로 주식회사 | 고집적 상변화 메모리 셀 어레이 및 이를 포함하는 상변화메모리 소자 |
KR20060002617A (ko) * | 2004-07-02 | 2006-01-09 | 삼성전자주식회사 | 다중 채널 영역들을 갖는 셀 스위칭 트랜지스터들을채택하는 반도체 기억소자들 및 그 제조방법들 |
KR20060002672A (ko) * | 2004-07-03 | 2006-01-09 | 비욘드마이크로 주식회사 | 고속 저전력 상변화 메모리 셀 어레이 구조 및 이를응용한 고직접 단위 기억소자 구조체 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW388096B (en) * | 1996-06-10 | 2000-04-21 | Texas Instruments Inc | Integrated circuit insulator and method |
JP4491870B2 (ja) * | 1999-10-27 | 2010-06-30 | ソニー株式会社 | 不揮発性メモリの駆動方法 |
US6891749B2 (en) * | 2002-02-20 | 2005-05-10 | Micron Technology, Inc. | Resistance variable ‘on ’ memory |
US7342311B2 (en) * | 2004-09-13 | 2008-03-11 | Lawrence Livermore National Security, Llc | Electronic unit integrated into a flexible polymer body |
-
2006
- 2006-05-24 KR KR1020060046409A patent/KR100767333B1/ko active IP Right Grant
-
2007
- 2007-05-24 US US11/805,827 patent/US7851778B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050115539A (ko) * | 2004-06-04 | 2005-12-08 | 비욘드마이크로 주식회사 | 고집적 상변화 메모리 셀 어레이 및 이를 포함하는 상변화메모리 소자 |
KR20060002617A (ko) * | 2004-07-02 | 2006-01-09 | 삼성전자주식회사 | 다중 채널 영역들을 갖는 셀 스위칭 트랜지스터들을채택하는 반도체 기억소자들 및 그 제조방법들 |
KR20060002672A (ko) * | 2004-07-03 | 2006-01-09 | 비욘드마이크로 주식회사 | 고속 저전력 상변화 메모리 셀 어레이 구조 및 이를응용한 고직접 단위 기억소자 구조체 |
Also Published As
Publication number | Publication date |
---|---|
US7851778B2 (en) | 2010-12-14 |
US20070272987A1 (en) | 2007-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100767333B1 (ko) | 계면 제어층을 포함하는 비휘발성 전기적 상변화 메모리소자 및 이의 제조방법 | |
JP5698975B2 (ja) | 改善動作特性を有する多層カルコゲナイド及び関連デバイス | |
US9337421B2 (en) | Multi-layered phase-change memory device | |
Goux et al. | Electrochemical processes and device improvement in conductive bridge RAM cells | |
Goux et al. | Optimized Ni oxidation in 80-nm contact holes for integration of forming-free and low-power Ni/NiO/Ni memory cells | |
TWI451569B (zh) | 一種包含熱保護底電極的相變化記憶胞與其製作方法 | |
TWI379413B (ko) | ||
CN107732010A (zh) | 一种选通管器件及其制备方法 | |
US20070076486A1 (en) | Phase change memory device and method of forming the same | |
Ma et al. | A Self-Rectifying Resistive Switching Device Based on HfO 2/TaO $ _ {{x}} $ Bilayer Structure | |
KR102465179B1 (ko) | 선택 소자, 이의 제조 방법 및 이를 포함하는 비휘발성 메모리 소자 | |
WO2007146077A2 (en) | Multi-layer chalcogenide devices | |
US11031435B2 (en) | Memory device containing ovonic threshold switch material thermal isolation and method of making the same | |
CN109638153A (zh) | 一种选通管材料、选通管器件及其制备方法 | |
Pradel et al. | Bipolar resistance switching in chalcogenide materials | |
Souchier et al. | First evidence of resistive switching in polycrystalline GaV4S8 thin layers | |
Lee et al. | Understanding of the abrupt resistive transition in different types of threshold switching devices from materials perspective | |
Choi et al. | Nanoscale resistive switching of a copper–carbon-mixed layer for nonvolatile memory applications | |
Liu et al. | Resistive switching mechanism of a Pr0. 7Ca0. 3MnO3-based memory device and assessment of its suitability for nano-scale applications | |
US11711988B2 (en) | Elementary cell comprising a resistive memory and associated method of initialization | |
Courtade et al. | Improvement of resistance switching characteristics in NiO films obtained from controlled Ni oxidation | |
Gyanathan et al. | Phase-change random access memory with multilevel resistances implemented using a dual phase-change material stack | |
Nandi | Resistive Switching in Transition Metal Oxides for Integrated Non-volatile Memory | |
Wu et al. | In situ electrical properties’ investigation and nanofabrication of Ag/Sb2Te3 assembled multilayers’ film | |
Yakubov et al. | Contact resistance measurements for the Ge 2 Sb 2 Te 5 thin films |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20120928 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20130930 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20140930 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20151002 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20160923 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20170925 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20180920 Year of fee payment: 12 |