JP2012028765A - SiGe材料を使用する抵抗性メモリー - Google Patents
SiGe材料を使用する抵抗性メモリー Download PDFInfo
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- 230000015654 memory Effects 0.000 title claims abstract description 59
- 229910000577 Silicon-germanium Inorganic materials 0.000 title claims description 28
- 239000000463 material Substances 0.000 title description 10
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 62
- 239000004065 semiconductor Substances 0.000 claims abstract description 33
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 29
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims description 24
- 239000002923 metal particle Substances 0.000 claims description 14
- 230000008021 deposition Effects 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000005621 ferroelectricity Effects 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 12
- 208000033999 Device damage Diseases 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 48
- 239000002184 metal Substances 0.000 description 48
- 230000008569 process Effects 0.000 description 22
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 21
- 229920005591 polysilicon Polymers 0.000 description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 17
- 230000007547 defect Effects 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- 238000000151 deposition Methods 0.000 description 10
- 239000010931 gold Substances 0.000 description 10
- 239000011572 manganese Substances 0.000 description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 5
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 4
- 229910002601 GaN Inorganic materials 0.000 description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 239000002061 nanopillar Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000005323 electroforming Methods 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000000995 aerosol-assisted chemical vapour deposition Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 description 2
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 description 2
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001928 direct liquid injection chemical vapour deposition Methods 0.000 description 2
- 238000004050 hot filament vapor deposition Methods 0.000 description 2
- 238000002365 hybrid physical--chemical vapour deposition Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000005055 memory storage Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000259 microwave plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 239000002070 nanowire Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000000038 ultrahigh vacuum chemical vapour deposition Methods 0.000 description 2
- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- BHHYHSUAOQUXJK-UHFFFAOYSA-L zinc fluoride Chemical compound F[Zn]F BHHYHSUAOQUXJK-UHFFFAOYSA-L 0.000 description 2
- SKJCKYVIQGBWTN-UHFFFAOYSA-N (4-hydroxyphenyl) methanesulfonate Chemical compound CS(=O)(=O)OC1=CC=C(O)C=C1 SKJCKYVIQGBWTN-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000003877 atomic layer epitaxy Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021423 nanocrystalline silicon Inorganic materials 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002073 nanorod Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H10N70/20—Multistable switching devices, e.g. memristors
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- 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
- H10B63/84—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 arranged in a direction perpendicular to the substrate, e.g. 3D cell arrays
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- 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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Abstract
【解決手段】抵抗性メモリーデバイス100は、第1電極106と、シリコンを含む多結晶半導体層を有する第2電極102と、第1電極106と第2電極102の間に提供される非晶質シリコン構造104とを含み、第1電極106、第2電極102及び非晶質シリコン構造104は、二端子抵抗性メモリーセルを規定する。
【選択図】図3A
Description
適用なし
Claims (23)
- クロスバーアレイを有するメモリーデバイスであって、前記メモリーデバイスは、
第一方向に沿って延びる第1電極の第1アレイと、
第二方向に沿って延びる第2電極の第2アレイと、
第1アレイ及び第2アレイによって規定された交点において第1電極及び第2電極の間に設けられた非晶質シリコン構造を備え、
各第2電極は、シリコンを含む多結晶半導体層を有し、
第1アレイ及び第2アレイの各交点は、二端子抵抗性メモリーセルを規定する、メモリーデバイス。 - 請求項1のメモリーデバイスであって、
前記非晶質シリコン構造は、アモルファスシリコンを含み、前記多結晶半導体層は、多結晶シリコン-ゲルマニウムを含む、メモリーデバイス。 - 請求項1のメモリーデバイスであって、
第1電極の第1アレイは、非晶質シリコン構造の上に設けられ、
第2電極の第2アレイは、非晶質シリコン構造の下に設けられ、
第1電極の第1アレイは、銀を含み、前記非晶質シリコン構造は、アモルファスシリコンを含み、第2電極の第2アレイは、多結晶シリコン-ゲルマニウムを含む、メモリーデバイス。 - 請求項3のメモリーデバイスであって、
前記多結晶シリコン-ゲルマニウムは、少なくとも60%Geを含む、メモリーデバイス。 - 請求項4のメモリーデバイスであって、
前記多結晶シリコン-ゲルマニウムは、少なくとも70%Geを含み、
前記多結晶シリコン-ゲルマニウムは、450℃以下の堆積温度を使用することによって形成される、メモリーデバイス。 - 請求項4のメモリーデバイスであって、
前記多結晶シリコン-ゲルマニウムは、約400℃の温度で堆積される、メモリーデバイス。 - 請求項4のメモリーデバイスであって、
前記多結晶シリコン-ゲルマニウムは、ドーピング濃度が1E20/cm3より大きくなるように、
ボロンでドープされる、メモリーデバイス。 - 請求項1のメモリーデバイスであって、
前記多結晶半導体層は、化合物半導体層を含む、メモリーデバイス。 - 請求項1のメモリーデバイスであって、
前記二端子抵抗性メモリーセルは、プログラム電圧が第1電極へ印加されたときにオンになり、消去電圧が第1電極へ印加されたときにオフになり、
前記二端子抵抗性メモリーセルは、電気信号を印加することによってスイッチング媒体の強誘電性、磁化、及び相変化無しで抵抗が制御可能であるスイッチング媒体を用いるメモリーセルである、メモリーデバイス。 - 請求項9のメモリーデバイスであって、
前記プログラム電圧は、1〜4ボルトであり、前記消去電圧は、-1〜-4ボルトである、メモリーデバイス。 - 請求項10のメモリーデバイスであって、
前記プログラム電圧は、1ボルト〜2ボルトであり、前記消去電圧は、-1ボルト〜-2ボルトである、メモリーデバイス。 - 抵抗性メモリーデバイスであって、
第1電極と、
シリコンを含む多結晶半導体層を有する第2電極と、
第1電極と第2電極の間に提供される非晶質シリコン構造とを備え、
第1電極、第2電極及び非晶質シリコン構造は、二端子抵抗性メモリーセルを規定する、メモリーデバイス。 - 請求項12のメモリーデバイスであって、
前記非晶質シリコン構造は、アモルファスシリコンを含み、前記多結晶半導体層は、多結晶シリコン-ゲルマニウムを含む、メモリーデバイス。 - 請求項13のメモリーデバイスであって、
第1電極は、銀を含み、前記非晶質シリコン構造は、アモルファスシリコンを含み、前記第2電極は、多結晶シリコン-ゲルマニウムを含む、メモリーデバイス。 - 請求項14のメモリーデバイスであって、前記多結晶シリコン-ゲルマニウムは、少なくとも60%Geを含む、メモリーデバイス。
- 請求項14のメモリーデバイスであって、前記多結晶シリコン-ゲルマニウムは、少なくとも70%Geを含み、
前記多結晶シリコン-ゲルマニウムは、450℃以下の堆積温度を使用することによって形成される、メモリーデバイス。 - 請求項14のメモリーデバイスであって、前記多結晶シリコン-ゲルマニウムは、堆積約400℃の温度を使用することによって形成される、メモリーデバイス。
- 抵抗性メモリーデバイスを製造するための方法であって、前記方法は、
基板を提供することと、
前記基板上に下部電極を形成することと、
前記下部電極上にスイッチング媒体を形成することと、
前記スイッチング媒体上に上部電極を形成することを備え、
前記下部電極は、シリコンを含む多結晶半導体層を含み、
前記スイッチング媒体は、プログラム電圧が印加されたときにフィラメントが形成される領域を規定し、
前記上部電極は、前記スイッチング媒体中に規定される前記領域内に前記フィラメントを形成するのに必要な金属粒子の少なくとも一部を提供するように構成されている、方法。 - 請求項18の方法であって、
前記下部電極は、p型多結晶シリコン-ゲルマニウムを含む、方法。 - 請求項19の方法であって、
前記p型多結晶シリコン-ゲルマニウムは、前記多結晶半導体層である、方法。 - 請求項19の方法であって、
前記多結晶シリコン-ゲルマニウムは、少なくとも60%Geを含む、方法。 - 請求項19の方法であって、
前記多結晶シリコン-ゲルマニウムは、少なくとも70%Geを含み、
前記多結晶シリコン-ゲルマニウムは、450℃以下の温度で堆積される、方法。 - 請求項19の方法であって、
前記多結晶シリコン-ゲルマニウムは、約400℃の温度で堆積される、方法。
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Also Published As
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US9036400B2 (en) | 2015-05-19 |
CN102315242A (zh) | 2012-01-11 |
US20130134379A1 (en) | 2013-05-30 |
KR20120005952A (ko) | 2012-01-17 |
US8374018B2 (en) | 2013-02-12 |
US20120008366A1 (en) | 2012-01-12 |
EP2405441A1 (en) | 2012-01-11 |
US8750019B2 (en) | 2014-06-10 |
US20140054539A1 (en) | 2014-02-27 |
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