JP7314254B2 - 遷移金属ドープのゲルマニウム-アンチモン-テルル(gst)メモリデバイスコンポーネント及び組成物 - Google Patents
遷移金属ドープのゲルマニウム-アンチモン-テルル(gst)メモリデバイスコンポーネント及び組成物 Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims description 123
- 230000007704 transition Effects 0.000 title description 26
- 229910000618 GeSbTe Inorganic materials 0.000 title description 2
- 230000015654 memory Effects 0.000 claims description 503
- 239000000463 material Substances 0.000 claims description 65
- 229910052787 antimony Inorganic materials 0.000 claims description 39
- 229910052714 tellurium Inorganic materials 0.000 claims description 39
- 229910052732 germanium Inorganic materials 0.000 claims description 34
- 229910052727 yttrium Inorganic materials 0.000 claims description 31
- 150000004770 chalcogenides Chemical class 0.000 claims description 26
- 229910052706 scandium Inorganic materials 0.000 claims description 20
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 19
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 17
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 16
- 238000002425 crystallisation Methods 0.000 claims description 13
- 230000008025 crystallization Effects 0.000 claims description 13
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 claims description 13
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 8
- 230000002596 correlated effect Effects 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 3
- 239000012782 phase change material Substances 0.000 description 51
- 230000000875 corresponding effect Effects 0.000 description 33
- 230000007423 decrease Effects 0.000 description 26
- 238000000034 method Methods 0.000 description 17
- 238000004891 communication Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 12
- 229910052723 transition metal Inorganic materials 0.000 description 11
- 239000000758 substrate Substances 0.000 description 9
- 150000003624 transition metals Chemical class 0.000 description 9
- 229920002120 photoresistant polymer Polymers 0.000 description 8
- 238000003491 array Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009477 glass transition Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910052711 selenium Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229910018110 Se—Te Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
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- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
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- 230000005855 radiation Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910005939 Ge—Sn Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910020938 Sn-Ni Inorganic materials 0.000 description 1
- 229910020923 Sn-O Inorganic materials 0.000 description 1
- 229910002855 Sn-Pd Inorganic materials 0.000 description 1
- 229910018731 Sn—Au Inorganic materials 0.000 description 1
- 229910008937 Sn—Ni Inorganic materials 0.000 description 1
- 229910008772 Sn—Se Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 229910052802 copper Inorganic materials 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
- 238000013500 data storage Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- -1 etc.) Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007736 thin film deposition technique Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
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- 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
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- 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
-
- 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
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- 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
- G11C13/0023—Address circuits or decoders
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- 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
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- G11C13/004—Reading or sensing circuits or methods
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- 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
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- 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
- H10B63/20—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes
- H10B63/24—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes of the Ovonic threshold switching type
-
- 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
- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
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- 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
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- 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
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- 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
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- 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
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- 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
- G11C2213/72—Array wherein the access device being a diode
-
- 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
- G11C2213/76—Array using an access device for each cell which being not a transistor and not a diode
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
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- G11C2213/79—Array wherein the access device being a transistor
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- G—PHYSICS
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- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/18—Bit line organisation; Bit line lay-out
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
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- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Semiconductor Memories (AREA)
Description
特許に対する本出願は、2018年8月21日に出願された“TRANSITION METAL DOPED GERMANIUM-ANTIMONY-TELLURIUM (GST) MEMORY DEVICE COMPONENTS AND COMPOSITION”という名称のFantini等による米国特許出願番号16/107,930に対する優先権を主張する、2019年8月13日に出願された“TRANSITION METAL DOPED GERMANIUM-ANTIMONY-TELLURIUM (GST) MEMORY DEVICE COMPONENTS AND COMPOSITION”という名称のFantini等によるPCT出願番号PCT/US2019/046403に対する優先権を主張し、該出願の各々は、本出願の譲受人に譲渡され、その全体が参照により本明細書に明白に組み込まれる。
Claims (24)
- 組成物の15原子パーセント(at.%)~35at.%のレンジの量のゲルマニウムと、
前記組成物の30at.%より大きく40at.%以下のレンジの量のアンチモンと、
前記組成物の40at.%以上の量のテルルと、
前記組成物の0.15at.%~10at.%のレンジの量の、イットリウム及びスカンジウムからなるグループから選択された少なくとも1つの元素とを含む物質の組成物であって、
前記少なくとも1つの元素の量は、前記組成物において前記アンチモンの量に対して逆相関しており、前記アンチモンの量が前記ゲルマニウムの量とは異なっている、組成物。 - 前記グループから選択された前記少なくとも1つの元素はイットリウムである、請求項1に記載の組成物。
- イットリウムの前記量は、前記組成物の5at.%未満である、請求項2に記載の組成物。
- 原子パーセントによるテルルの前記量は、原子パーセントによるゲルマニウムの前記量よりも多く、原子パーセントによるアンチモンの前記量よりも多く、原子パーセントによる前記少なくとも1つの元素の量よりも多い、請求項1に記載の組成物。
- イットリウム及びスカンジウムからなる前記グループから選択された前記少なくとも1つの元素の前記量は、前記組成物の5at.%未満である、請求項1に記載の組成物。
- ゲルマニウムの前記量は、前記組成物の15at.%~25at.%のレンジである、請求項1に記載の組成物。
- アンチモンの前記量は、前記組成物の30at.%より大きく35at.%以下のレンジである、請求項1に記載の組成物。
- テルルの前記量は、前記組成物の40at.%~65at.%のレンジである、請求項1に記載の組成物。
- テルルの前記量は、前記組成物の45at.%~55at.%のレンジである、請求項1に記載の組成物。
- 前記組成物のバンドギャップは、0.6電子ボルト~0.9電子ボルトのレンジである、請求項1に記載の組成物。
- 前記組成物の結晶化速度は、10マイクロ秒未満である、請求項10に記載の組成物。
- セレクタデバイスと、
前記セレクタデバイスと結合されたメモリ素子であって、
組成物の15at.%~35at.%のレンジの量のゲルマニウムと、
前記組成物の30at.%より大きく40at.%以下のレンジの量のアンチモンと、
前記組成物の40at.%以上の量のテルルと、
前記組成物の0.15at.%~10at.%のレンジの量の、イットリウム及びスカンジウムからなるグループから選択された少なくとも1つの元素と
を含む前記組成物であって、前記少なくとも1つの元素の量は、前記組成物において前記アンチモンの量に対して逆相関しており、前記アンチモンの量が前記ゲルマニウムの量とは異なっている、組成物を有する前記メモリ素子とを含む、装置。 - 前記グループから選択された前記少なくとも1つの元素はイットリウムである、請求項12に記載の装置。
- イットリウムの前記量は、前記組成物の1at.%~5at.%のレンジである、請求項13に記載の装置。
- 前記メモリ素子の高さは、20ナノメートル~40ナノメートルのレンジであり、前記メモリ素子の幅は、5ナノメートル~50ナノメートルのレンジである、請求項12に記載の装置。
- 前記メモリ素子のバンドギャップは、0.6電子ボルト~0.9電子ボルトのレンジであり、前記メモリ素子の結晶化速度は、10マイクロ秒未満である、請求項15に記載の装置。
- 前記セレクタデバイスは、金属-酸化物-半導体電界効果トランジスタ(MOSFET)、バイポーラ接合トランジスタ(BJT)、ダイオード、又はオボニックスレッショルドスイッチの内の何れか1つを含む、請求項12に記載の装置。
- 第1のアクセス線と、
第2のアクセス線と、
ゲルマニウム、アンチモン、テルル、並びにイットリウム及びスカンジウムの内の少なくとも1つの組成物を含むカルコゲナイド材料を含む第1のメモリセルであって、前記第1のアクセス線が前記第1のメモリセルを介して前記第2のアクセス線と結合される、前記第1のメモリセルと
を含む装置であって、
前記カルコゲナイド材料の前記組成物は、
前記組成物の15at.%~35at.%のレンジの量のゲルマニウムと、
前記組成物の30at.%より大きく40at.%以下のレンジの量のアンチモンと、
前記組成物の40at.%以上の量のテルルと、
前記組成物の0.15at.%~10at.%のレンジの量の、イットリウム及びスカンジウムからなるグループから選択された少なくとも1つの元素と
を含み、前記少なくとも1つの元素の量は、前記組成物において前記アンチモンの量に対して逆相関しており、前記アンチモンの量が前記ゲルマニウムの量とは異なっている、装置。 - 前記グループから選択された前記少なくとも1つの元素はイットリウムである、請求項18に記載の装置。
- イットリウムの前記量は、前記組成物の0.5at.%~5at.%のレンジである、請求項19に記載の装置。
- 前記第1のメモリセルと結合された第2のメモリセルであって、前記第2のメモリセルの中央と前記第1のメモリセルの中央との間の距離は、10ナノメートル~45ナノメートルのレンジである、前記第2のメモリセル
を更に含む、請求項18に記載の装置。 - 前記第1のアクセス線及び前記第2のアクセス線は、3次元クロスポイント構成で配列され、前記装置は、
第3のアクセス線であって、前記第1のアクセス線及び前記第3のアクセス線は、前記3次元クロスポイント構成で配列され、前記第2のメモリセルと結合される、前記第3のアクセス線を更に含む、請求項21に記載の装置。 - 前記第1のメモリセルは、
セレクタデバイスと、
前記カルコゲナイド材料を含むメモリ素子であって、前記メモリ素子の高さは、20ナノメートル~40ナノメートルのレンジであり、前記メモリ素子の幅は、5ナノメートル~50ナノメートルのレンジである、前記メモリ素子と
を含む、請求項18に記載の装置。 - セレクタデバイスと、
前記セレクタデバイスと結合され、前記セレクタデバイスにより前記第1のメモリセルから電気的に絶縁される第3のアクセス線と
を更に含む、請求項18に記載の装置。
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