JP2008533711A - 半導体メモリ装置における電解質材料層の製造方法 - Google Patents
半導体メモリ装置における電解質材料層の製造方法 Download PDFInfo
- Publication number
- JP2008533711A JP2008533711A JP2008500145A JP2008500145A JP2008533711A JP 2008533711 A JP2008533711 A JP 2008533711A JP 2008500145 A JP2008500145 A JP 2008500145A JP 2008500145 A JP2008500145 A JP 2008500145A JP 2008533711 A JP2008533711 A JP 2008533711A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- chalcogenide
- sulfur
- manufacturing
- binary
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 80
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- 239000004065 semiconductor Substances 0.000 title claims abstract description 26
- 239000002001 electrolyte material Substances 0.000 title claims abstract description 14
- 230000015654 memory Effects 0.000 claims abstract description 104
- 150000004770 chalcogenides Chemical class 0.000 claims abstract description 73
- 239000000463 material Substances 0.000 claims abstract description 45
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 41
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000011593 sulfur Substances 0.000 claims abstract description 37
- -1 chalcogenide compounds Chemical class 0.000 claims abstract description 32
- 238000000151 deposition Methods 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 14
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 9
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 6
- 150000003624 transition metals Chemical class 0.000 claims abstract description 6
- 239000011669 selenium Substances 0.000 claims description 43
- 230000008569 process Effects 0.000 claims description 39
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims description 30
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 23
- 229910052711 selenium Inorganic materials 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 21
- 238000005229 chemical vapour deposition Methods 0.000 claims description 14
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000137 annealing Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910005866 GeSe Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000000231 atomic layer deposition Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000005240 physical vapour deposition Methods 0.000 claims description 5
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 5
- 238000004544 sputter deposition Methods 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000012159 carrier gas Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 238000005137 deposition process Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 125000002524 organometallic group Chemical group 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000007769 metal material Substances 0.000 abstract description 4
- 210000004027 cell Anatomy 0.000 description 58
- 239000003792 electrolyte Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 9
- 239000002244 precipitate Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000003487 electrochemical reaction Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 125000004434 sulfur atom Chemical group 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000010416 ion conductor Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229940126062 Compound A Drugs 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000005387 chalcogenide glass Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000007787 long-term memory Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005477 sputtering target Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 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
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/24—Multistable switching devices, e.g. memristors based on migration or redistribution of ionic species, e.g. anions, vacancies
- H10N70/245—Multistable switching devices, e.g. memristors based on migration or redistribution of ionic species, e.g. anions, vacancies the species being metal cations, e.g. programmable metallization cells
-
- 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
- H10N70/023—Formation of switching materials, e.g. deposition of layers by chemical vapor deposition, e.g. MOCVD, ALD
-
- 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
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/882—Compounds of sulfur, selenium or tellurium, e.g. chalcogenides
-
- 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
- H10N70/8822—Sulfides, e.g. CuS
-
- 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
- H10N70/8825—Selenides, e.g. GeSe
-
- 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
- H10N70/8833—Binary metal oxides, e.g. TaOx
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
・半導体基板を製造するステップ
・上記半導体基板上に、2元カルコゲニド層を堆積するステップ
・上記2元カルコゲニド層上に、硫黄含有層を堆積するステップ
・少なくとも2つの異なるカルコゲニド化合物ASexSyを含有する3元カルコゲニド層を形成するステップ
この場合、上記カルコゲニド化合物ASexSyの1つの成分Aは、第IV族典型元素(例えばGe、Si)の材料によって構成されている。
・高速イオン伝導体としてのGeSeの長所と、GeSの熱的安定性が高いという長所とを組み合わせることができる点
・化学量論の段階的な最適化にもとい、それぞれの硫黄量を連続的に加えることによって、固体電解質特徴を段階的に最適化できる点
・化学気相成長法を用いて、ナノスケールの大きさのコンタクトホールを充填できる点
・低温度のプロセス、および、一般的な統合スキームとのプロセス互換性。
・プロセス制御が簡素である点
2元カルコゲニド層の製造を、例えば、次の方法によって行うことができる。2元のスパッタ対象物(例えばGeSe)をスパッタリングする方法、または、セレン含有の雰囲気または硫黄含有の雰囲気(例えば、アルゴン、H2S、または、H2Seの雰囲気)において、成分A(例えばA=Ge、Si)を反応性スパッタリングする方法である。2元セレン含有層、もしくは、硫化A−Se層またはA−S層(例えばA=Ge,Siなど)の形成を、例えば、(熱)化学気相成長(CVD)、プラズマ励起化学気相成長(PECVD)、原子層堆積(ALD)、物理気相成長(PVD)、または、蒸着のような層堆積プロセスによって行う。
I.上記基板表面における熱解離
150度...250度
COS―――――――――――――――>CO+S
上記プロセスステップを、約150度から250度の範囲のプロセス温度において実施する。上記プロセスのこの段階では、上記気体の空間から、上記吸引ポンプによって一酸化炭素(CO)を除去する。この温度範囲を、約100度から350度の範囲に広げて、上記基板表面における反応値を最適化してもよい。
II.上記カルコゲニド表面におけるS原子の吸収および反応
S+ASe―――――――――――――>ASexSy
A=Ge、Siなど、もしくは、他の材料である、上記第IV族典型元素、または、遷移金属(特にZn、Cd、Hg)である。
S+ASe―――>ASexSy
A=Ge、Si、Sn、Pb、Cd、Zn、Hgを有する
上記プロセスの第4ステップを、その場で、つまり硫黄含有層6を2元セレン含有A−Se層5(上記プロセスの第3ステップ、図4)上に堆積している間に、上記MOCVD法によって行う。選択的に、2元カルコゲニド表面5上における硫黄原子Sの吸収および反応を、別の場所で、つまり、2元セレン含有A−Se層5上への硫黄含有層6の堆積が終了した後、または、硫黄含有層6の堆積中と堆積後との両方において行ってもよい。
1 抵抗スイッチングメモリセル
2a 電極
2b 電極
3 カルコゲニド材料含有の電解質材料層
4 半導体シリコン基板
5 2元セレン含有層
6 硫黄含有層
7 3元A−Se−Sカルコゲニド層
Claims (26)
- 半導体メモリ装置、特に抵抗スイッチングメモリ装置(1)または抵抗スイッチングメモリ素子において用いる、カルコゲニド材料が混入または堆積された電解質材料層(3)の製造方法であって、
半導体基板(4)を形成するステップと、
上記半導体基板(4)上に、2元カルコゲニド層(5)を堆積するステップと、
上記2元カルコゲニド層(5)上に、硫黄含有層(6)を堆積するステップと、
少なくとも2つの異なるカルコゲニド化合物(ASexSy)を含有する3元カルコゲニド層(7)を形成するステップとを含み、
上記カルコゲニド化合物の成分は、第IV族典型元素(例えばA=Ge、Siなど)の1つの材料、遷移金属(例えばZn、Cd、Hg)の材料、または、それらを組み合わせた材料を含む製造方法。 - 上記3元カルコゲニド層(7)の形成ステップは、上記3元カルコゲニド層に混入された、少なくとも2つの異なるカルコゲニド化合物(AxSe1−x−ySy)の形成ステップを含み、
上記カルコゲニド化合物(AxSe1−x−ySy)の成分は、第IV族典型元素(例えばA=Ge、Siなど)の材料、または、Zn、Cd、Hgからなるグループの材料、または、それらを組み合わせた材料によって構成されている請求項1に記載の製造方法。 - 上記2元カルコゲニド層(5)の形成は、
好ましくはGeSeを含有する、2元のスパッタ対象物をスパッタリングする方法、または、セレン含有または硫黄含有の雰囲気、好ましくはアルゴン、H2S、または、H2Seの雰囲気において、成分Aを反応性スパッタリングする方法のいずれか、または、上記2つの方法を組み合わせた方法によって行う請求項1に記載の製造方法。 - 上記2元カルコゲニド層(5)は、(熱)化学気相成長、プラズマ励起化学気相成長、原子層堆積、物理気相成長、または、蒸着のような好適な層堆積プロセスによって形成する請求項1に記載の製造方法。
- 上記2元カルコゲニド層(5)の形成は、2元セレン含有A−Se層または硫化A−S層を形成することによって行い、
上記成分Aは、第IV族典型元素(例えば、A=Ge、Siなど)の材料、または、Zn、Cd、Hgからなるグループの材料、または、これらを組み合わせた材料から構成されている請求項1に記載の製造方法。 - 上記第2カルコゲニド層(6)は、好ましくは堆積法と拡散法とを組み合わせた方法を用いて、硫黄(S)層、硫黄含有A−S層、またはセレン含有A−Se層を上記2元カルコゲニド層(5)上に堆積することによって形成する請求項1に記載の製造方法。
- 硫化カルボニル(COS)を用い、有機金属化学気相成長法によって、第2カルコゲニド硫黄含有A−S層、または、セレン含有A−Se層(6)を形成する請求項6に記載の製造方法。
- 上記硫化カルボニル(COS)ガスの硫黄(S)は、実質的に上記2元セレン含有カルコゲニド層(5)上に堆積して、上記第2カルコゲニド(硫黄含有)層(6)を形成し、
その一方で、ガス状の一酸化炭素(CO)は、実質的に、上記第2カルコゲニド(硫黄含有)層(6)から放出され、好ましくは、吸引システムの吸引ポンプにより処分される請求項7に記載の製造方法。 - 上記第2カルコゲニド硫黄含有A−S層または上記セレン含有A−Se層は、上記3元カルコゲニド層(7)を形成している間に、3元A−Se−S層(7)に変化する請求項6に記載の製造方法。
- 上記第2カルコゲニド層(6)は、既に存在している2元カルコゲニドA−Se層(5)と反応し、これにより、好ましくはGe−Se−Sの化合物およびSi−Se−Sの化合物を含有する粘着3元ASexSy層(7)を形成する請求項6に記載の製造方法。
- 上記2元カルコゲニド層(5)の表面における、上記硫化カルボニル(COS)ガスの硫黄(S)の吸収および反応は、上記2元セレン含有A−Se層(5)上に上記第2カルコゲニド層(6)を堆積している間に、好ましくは上記有機金属化学気相成長法によって行う請求項7に記載の製造方法。
- 上記2元カルコゲニド層(5)の表面における、上記硫化カルボニル(COS)ガスの硫黄(S)の反応は、上記2元セレン含有A−Se層(5)上への上記硫黄または硫黄含有層(6)の堆積が終了した後、または、上記硫黄含有層(6)の堆積中と堆積後との両方において行う請求項7に記載の製造方法。
- 1種類以上の反応ガスを供給して、上記成分A、つまりA−Xを添加し、上記Xは残留有機物である請求項7に記載の製造方法。
- 上記硫化カルボニル(COS)ガスに、1以上の不活性の搬送ガス、好ましくはN2、Arを加える請求項7に記載の製造方法。
- 上記硫化カルボニル(COS)ガスは、気体シャワー開口部を介して供給される請求項7に記載の製造方法。
- 約150度〜250度の範囲のプロセス温度を用いて、上記第2カルコゲニド層(6)を堆積する請求項1に記載の製造方法。
- 10mTorr〜10Torrの範囲、好ましくは約500mTorrの範囲のプロセス圧力を用いる請求項1に記載の製造方法。
- プラズマを供給して、膜堆積を助長する請求項1に記載の製造方法。
- マイクロ波を供給して、膜堆積を助長する請求項1に記載の製造方法。
- 半導体基板(4)は、好ましくはシリコン(Si)から構成されており、構造化された層とともに形成されている請求項1に記載の製造方法。
- 好適なプロセス雰囲気における、熱プロセスステップ、好ましくは炉内プロセス、または、RTPプロセスをさらに含む請求項1に記載の製造方法。
- 不活性の雰囲気またはカルコゲニド含有の雰囲気において後に行われるアニーリングは、上記3元層の化学量論、モルフォロジ、欠陥密度、ドーピング、および/または、ミクロ構造を最適化するために用いられる請求項1に記載の製造方法。
- 上記3元カルコゲニド層(7)の化学量論、ドーピング、および、モルフォロジは、後に行うアニーリングによって、好ましくは上記アニーリングプロセス中に、堆積持続時間および基板温度を変動させることによって設定する請求項22に記載の製造方法。
- 上記後に行うアニーリングは、不活性の雰囲気またはカルコゲニド含有の雰囲気において行い、別々の設定を可能にし、上記3元カルコゲニド層(7)の化学的特性、物理的特性、および、熱的特性の最適化を可能にする請求項23に記載の製造方法。
- 請求項1〜24のいずれか1項に記載の製造方法によって製造された3元カルコゲニド層(7)を含むメモリ装置。
- メモリセルに電圧パルスまたは電流パルスをそれぞれの強度および持続時間で印加するために、それぞれの抵抗メモリスイッチングメカニズムを示す、少なくとも1つの電解質材料層を含むメモリセルにおいて、
上記電解質材料層は、少なくとも2つの異なるカルコゲニド化合物(ASexSy)を含有する3元カルコゲニド層(7)を含み、
上記カルコゲニド化合物(ASexSy)の1つの成分は、第IV族典型元素(例えばA=Ge、Siなど)の1つの材料、または、遷移金属(例えばZn、Cd、Hg)からなる材料、または、それらを組み合わせた材料を含むことを特徴とするメモリセル。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/076,027 US7749805B2 (en) | 2005-03-10 | 2005-03-10 | Method for manufacturing an integrated circuit including an electrolyte material layer |
US11/076,027 | 2005-03-10 | ||
PCT/EP2006/050712 WO2006094867A1 (en) | 2005-03-10 | 2006-02-07 | Method for manufacturing an electrolyte material layer in semiconductor memory devices |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008533711A true JP2008533711A (ja) | 2008-08-21 |
JP5134529B2 JP5134529B2 (ja) | 2013-01-30 |
Family
ID=36390173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008500145A Expired - Fee Related JP5134529B2 (ja) | 2005-03-10 | 2006-02-07 | 半導体メモリ装置における電解質材料層の製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7749805B2 (ja) |
EP (1) | EP1856747A1 (ja) |
JP (1) | JP5134529B2 (ja) |
KR (1) | KR20070112380A (ja) |
CN (1) | CN101133503B (ja) |
WO (1) | WO2006094867A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101559292B1 (ko) * | 2014-07-16 | 2015-10-13 | 경희대학교 산학협력단 | 전이금속 칼코겐 화합물과 그 제조 방법, 및 전이금속 칼코겐 화합물을 포함하는 반도체 장치 |
Families Citing this family (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2433647B (en) * | 2005-12-20 | 2008-05-28 | Univ Southampton | Phase change memory materials, devices and methods |
US20090298222A1 (en) * | 2008-05-28 | 2009-12-03 | Ovonyx, Inc. | Method for manufacturing Chalcogenide devices |
US9601692B1 (en) | 2010-07-13 | 2017-03-21 | Crossbar, Inc. | Hetero-switching layer in a RRAM device and method |
US9012307B2 (en) | 2010-07-13 | 2015-04-21 | Crossbar, Inc. | Two terminal resistive switching device structure and method of fabricating |
US8946046B1 (en) | 2012-05-02 | 2015-02-03 | Crossbar, Inc. | Guided path for forming a conductive filament in RRAM |
US9570678B1 (en) | 2010-06-08 | 2017-02-14 | Crossbar, Inc. | Resistive RAM with preferental filament formation region and methods |
US8441835B2 (en) * | 2010-06-11 | 2013-05-14 | Crossbar, Inc. | Interface control for improved switching in RRAM |
WO2011156787A2 (en) | 2010-06-11 | 2011-12-15 | Crossbar, Inc. | Pillar structure for memory device and method |
US8374018B2 (en) | 2010-07-09 | 2013-02-12 | Crossbar, Inc. | Resistive memory using SiGe material |
US8569172B1 (en) | 2012-08-14 | 2013-10-29 | Crossbar, Inc. | Noble metal/non-noble metal electrode for RRAM applications |
US8947908B2 (en) | 2010-11-04 | 2015-02-03 | Crossbar, Inc. | Hetero-switching layer in a RRAM device and method |
US8884261B2 (en) | 2010-08-23 | 2014-11-11 | Crossbar, Inc. | Device switching using layered device structure |
US8467227B1 (en) | 2010-11-04 | 2013-06-18 | Crossbar, Inc. | Hetero resistive switching material layer in RRAM device and method |
US8168506B2 (en) | 2010-07-13 | 2012-05-01 | Crossbar, Inc. | On/off ratio for non-volatile memory device and method |
US8492195B2 (en) | 2010-08-23 | 2013-07-23 | Crossbar, Inc. | Method for forming stackable non-volatile resistive switching memory devices |
US9401475B1 (en) | 2010-08-23 | 2016-07-26 | Crossbar, Inc. | Method for silver deposition for a non-volatile memory device |
US8404553B2 (en) | 2010-08-23 | 2013-03-26 | Crossbar, Inc. | Disturb-resistant non-volatile memory device and method |
US8889521B1 (en) | 2012-09-14 | 2014-11-18 | Crossbar, Inc. | Method for silver deposition for a non-volatile memory device |
US8391049B2 (en) | 2010-09-29 | 2013-03-05 | Crossbar, Inc. | Resistor structure for a non-volatile memory device and method |
US8558212B2 (en) | 2010-09-29 | 2013-10-15 | Crossbar, Inc. | Conductive path in switching material in a resistive random access memory device and control |
USRE46335E1 (en) | 2010-11-04 | 2017-03-07 | Crossbar, Inc. | Switching device having a non-linear element |
US8502185B2 (en) | 2011-05-31 | 2013-08-06 | Crossbar, Inc. | Switching device having a non-linear element |
US8930174B2 (en) | 2010-12-28 | 2015-01-06 | Crossbar, Inc. | Modeling technique for resistive random access memory (RRAM) cells |
US9153623B1 (en) | 2010-12-31 | 2015-10-06 | Crossbar, Inc. | Thin film transistor steering element for a non-volatile memory device |
US8815696B1 (en) | 2010-12-31 | 2014-08-26 | Crossbar, Inc. | Disturb-resistant non-volatile memory device using via-fill and etchback technique |
US8791010B1 (en) | 2010-12-31 | 2014-07-29 | Crossbar, Inc. | Silver interconnects for stacked non-volatile memory device and method |
US9620206B2 (en) | 2011-05-31 | 2017-04-11 | Crossbar, Inc. | Memory array architecture with two-terminal memory cells |
US8619459B1 (en) | 2011-06-23 | 2013-12-31 | Crossbar, Inc. | High operating speed resistive random access memory |
US8946669B1 (en) | 2012-04-05 | 2015-02-03 | Crossbar, Inc. | Resistive memory device and fabrication methods |
US8659929B2 (en) | 2011-06-30 | 2014-02-25 | Crossbar, Inc. | Amorphous silicon RRAM with non-linear device and operation |
US9166163B2 (en) | 2011-06-30 | 2015-10-20 | Crossbar, Inc. | Sub-oxide interface layer for two-terminal memory |
US9564587B1 (en) | 2011-06-30 | 2017-02-07 | Crossbar, Inc. | Three-dimensional two-terminal memory with enhanced electric field and segmented interconnects |
US9627443B2 (en) | 2011-06-30 | 2017-04-18 | Crossbar, Inc. | Three-dimensional oblique two-terminal memory with enhanced electric field |
WO2013015776A1 (en) | 2011-07-22 | 2013-01-31 | Crossbar, Inc. | Seed layer for a p + silicon germanium material for a non-volatile memory device and method |
US10056907B1 (en) | 2011-07-29 | 2018-08-21 | Crossbar, Inc. | Field programmable gate array utilizing two-terminal non-volatile memory |
US9729155B2 (en) | 2011-07-29 | 2017-08-08 | Crossbar, Inc. | Field programmable gate array utilizing two-terminal non-volatile memory |
US8674724B2 (en) | 2011-07-29 | 2014-03-18 | Crossbar, Inc. | Field programmable gate array utilizing two-terminal non-volatile memory |
JP2013110279A (ja) * | 2011-11-21 | 2013-06-06 | Toshiba Corp | 不揮発性記憶装置 |
US8716098B1 (en) | 2012-03-09 | 2014-05-06 | Crossbar, Inc. | Selective removal method and structure of silver in resistive switching device for a non-volatile memory device |
US9087576B1 (en) | 2012-03-29 | 2015-07-21 | Crossbar, Inc. | Low temperature fabrication method for a three-dimensional memory device and structure |
US9685608B2 (en) | 2012-04-13 | 2017-06-20 | Crossbar, Inc. | Reduced diffusion in metal electrode for two-terminal memory |
US8658476B1 (en) | 2012-04-20 | 2014-02-25 | Crossbar, Inc. | Low temperature P+ polycrystalline silicon material for non-volatile memory device |
US8796658B1 (en) | 2012-05-07 | 2014-08-05 | Crossbar, Inc. | Filamentary based non-volatile resistive memory device and method |
US8765566B2 (en) | 2012-05-10 | 2014-07-01 | Crossbar, Inc. | Line and space architecture for a non-volatile memory device |
US9741765B1 (en) | 2012-08-14 | 2017-08-22 | Crossbar, Inc. | Monolithically integrated resistive memory using integrated-circuit foundry compatible processes |
US9583701B1 (en) | 2012-08-14 | 2017-02-28 | Crossbar, Inc. | Methods for fabricating resistive memory device switching material using ion implantation |
US8946673B1 (en) | 2012-08-24 | 2015-02-03 | Crossbar, Inc. | Resistive switching device structure with improved data retention for non-volatile memory device and method |
US20140054531A1 (en) * | 2012-08-24 | 2014-02-27 | Intermolecular, Inc. | Defect enhancement of a switching layer in a nonvolatile resistive memory element |
US20140065799A1 (en) * | 2012-09-03 | 2014-03-06 | Intermolecular, Inc. | Methods and Systems for Low Resistance Contact Formation |
US9312483B2 (en) | 2012-09-24 | 2016-04-12 | Crossbar, Inc. | Electrode structure for a non-volatile memory device and method |
US9576616B2 (en) | 2012-10-10 | 2017-02-21 | Crossbar, Inc. | Non-volatile memory with overwrite capability and low write amplification |
US11068620B2 (en) | 2012-11-09 | 2021-07-20 | Crossbar, Inc. | Secure circuit integrated with memory layer |
US8982647B2 (en) | 2012-11-14 | 2015-03-17 | Crossbar, Inc. | Resistive random access memory equalization and sensing |
US9412790B1 (en) | 2012-12-04 | 2016-08-09 | Crossbar, Inc. | Scalable RRAM device architecture for a non-volatile memory device and method |
US9406379B2 (en) | 2013-01-03 | 2016-08-02 | Crossbar, Inc. | Resistive random access memory with non-linear current-voltage relationship |
US9324942B1 (en) | 2013-01-31 | 2016-04-26 | Crossbar, Inc. | Resistive memory cell with solid state diode |
US9112145B1 (en) | 2013-01-31 | 2015-08-18 | Crossbar, Inc. | Rectified switching of two-terminal memory via real time filament formation |
US8934280B1 (en) | 2013-02-06 | 2015-01-13 | Crossbar, Inc. | Capacitive discharge programming for two-terminal memory cells |
KR101500944B1 (ko) * | 2013-03-22 | 2015-03-10 | 경희대학교 산학협력단 | 칼코겐 화합물의 2차원 대면적 성장 방법, cmos형 구조체의 제조 방법, 칼코겐 화합물의 막, 칼코겐 화합물의 막을 포함하는 전자 소자 및 cmos형 구조체 |
US10790144B2 (en) * | 2013-06-24 | 2020-09-29 | Arizona Board Of Regents On Behalf Of Arizona State University | Method to produce pyrite |
US10290801B2 (en) | 2014-02-07 | 2019-05-14 | Crossbar, Inc. | Scalable silicon based resistive memory device |
KR101655898B1 (ko) * | 2015-03-27 | 2016-09-08 | 연세대학교 산학협력단 | 이종평면 전이금속 칼코게나이드 박막의 두께 조절방법 |
CN111129070A (zh) * | 2019-11-27 | 2020-05-08 | 中国科学院上海微系统与信息技术研究所 | 一种选通管材料、选通管单元以及其制作方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001525606A (ja) * | 1997-12-04 | 2001-12-11 | アクソン テクノロジーズ コーポレイション | プログラム可能なサブサーフェス集合メタライゼーション構造およびその作製方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6727192B2 (en) * | 2001-03-01 | 2004-04-27 | Micron Technology, Inc. | Methods of metal doping a chalcogenide material |
DE10119463C2 (de) | 2001-04-12 | 2003-03-06 | Hahn Meitner Inst Berlin Gmbh | Verfahren zur Herstellung einer Chalkogenid-Halbleiterschicht des Typs ABC¶2¶ mit optischer Prozesskontrolle |
US6881623B2 (en) * | 2001-08-29 | 2005-04-19 | Micron Technology, Inc. | Method of forming chalcogenide comprising devices, method of forming a programmable memory cell of memory circuitry, and a chalcogenide comprising device |
US20030047765A1 (en) | 2001-08-30 | 2003-03-13 | Campbell Kristy A. | Stoichiometry for chalcogenide glasses useful for memory devices and method of formation |
US6881647B2 (en) * | 2001-09-20 | 2005-04-19 | Heliovolt Corporation | Synthesis of layers, coatings or films using templates |
US7393516B2 (en) * | 2003-01-31 | 2008-07-01 | Seo Dong-Kyun | Preparation of metal chalcogenides from reactions of metal compounds and chalcogen |
-
2005
- 2005-03-10 US US11/076,027 patent/US7749805B2/en not_active Expired - Fee Related
-
2006
- 2006-02-07 WO PCT/EP2006/050712 patent/WO2006094867A1/en not_active Application Discontinuation
- 2006-02-07 EP EP06708059A patent/EP1856747A1/en not_active Withdrawn
- 2006-02-07 JP JP2008500145A patent/JP5134529B2/ja not_active Expired - Fee Related
- 2006-02-07 CN CN2006800043053A patent/CN101133503B/zh not_active Expired - Fee Related
- 2006-02-07 KR KR1020077020360A patent/KR20070112380A/ko not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001525606A (ja) * | 1997-12-04 | 2001-12-11 | アクソン テクノロジーズ コーポレイション | プログラム可能なサブサーフェス集合メタライゼーション構造およびその作製方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101559292B1 (ko) * | 2014-07-16 | 2015-10-13 | 경희대학교 산학협력단 | 전이금속 칼코겐 화합물과 그 제조 방법, 및 전이금속 칼코겐 화합물을 포함하는 반도체 장치 |
Also Published As
Publication number | Publication date |
---|---|
US20060205110A1 (en) | 2006-09-14 |
WO2006094867A8 (en) | 2006-11-09 |
CN101133503B (zh) | 2010-11-17 |
EP1856747A1 (en) | 2007-11-21 |
US7749805B2 (en) | 2010-07-06 |
CN101133503A (zh) | 2008-02-27 |
KR20070112380A (ko) | 2007-11-23 |
WO2006094867A1 (en) | 2006-09-14 |
JP5134529B2 (ja) | 2013-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5134529B2 (ja) | 半導体メモリ装置における電解質材料層の製造方法 | |
US8502343B1 (en) | Nanoelectric memristor device with dilute magnetic semiconductors | |
US7483293B2 (en) | Method for improving the thermal characteristics of semiconductor memory cells | |
US7692175B2 (en) | Reactive sputtering process for optimizing the thermal stability of thin chalcogenide layers | |
US7511294B2 (en) | Resistive memory element with shortened erase time | |
JP4824278B2 (ja) | 可変抵抗材料セル及びその製造方法 | |
US9553264B2 (en) | Memory cells and semiconductor structures including electrodes comprising a metal, and related methods | |
KR102015135B1 (ko) | 기억 소자 및 그 제조 방법 및 기억 장치 | |
US20050180189A1 (en) | Memory device electrode with a surface structure | |
US20060049390A1 (en) | Resistively switching nonvolatile memory cell based on alkali metal ion drift | |
US9263670B2 (en) | Memory element and memory device | |
US9112149B2 (en) | Memory element and method of manufacturing the same, and memory device | |
KR101997924B1 (ko) | 기억 소자 및 기억 장치 | |
KR20060082868A (ko) | 저항 스위칭 반도체 메모리 | |
US20080078983A1 (en) | Layer structures comprising chalcogenide materials | |
US9515261B2 (en) | Memory cells and methods of making memory cells | |
TW200814382A (en) | Process for producing semiconductor memory device | |
US20080073751A1 (en) | Memory cell and method of manufacturing thereof | |
EP1753045B1 (en) | Method for fabricating an integrated device comprising a structure with a solid electrolyte |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110616 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110621 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110913 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20110928 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20110928 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120321 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120614 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120710 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121002 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20121030 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20121109 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20151116 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |