JP6298837B2 - カーボン電極膜の形成方法および相変化型メモリ素子の製造方法 - Google Patents
カーボン電極膜の形成方法および相変化型メモリ素子の製造方法 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 128
- 229910052799 carbon Inorganic materials 0.000 title claims description 125
- 238000000034 method Methods 0.000 title claims description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 230000003746 surface roughness Effects 0.000 claims description 38
- 238000004544 sputter deposition Methods 0.000 claims description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 16
- 229910052786 argon Inorganic materials 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 description 14
- 230000007423 decrease Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 230000005596 ionic collisions Effects 0.000 description 3
- -1 Ge—Sb—Te Chemical class 0.000 description 2
- 150000001786 chalcogen compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000000231 atomic layer deposition Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0605—Carbon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3435—Applying energy to the substrate during sputtering
- C23C14/345—Applying energy to the substrate during sputtering using substrate bias
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3485—Sputtering using pulsed power to the target
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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
- H10N70/011—Manufacture or treatment of multistable switching devices
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- 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
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- 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
- 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
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- 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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- 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
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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
- H10N70/884—Switching materials based on at least one element of group IIIA, IVA or VA, e.g. elemental or compound semiconductors
- H10N70/8845—Carbon or carbides
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physical Vapour Deposition (AREA)
- Carbon And Carbon Compounds (AREA)
- Electrodes Of Semiconductors (AREA)
- Semiconductor Memories (AREA)
Description
上記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで、上記ターゲットがスパッタされ、上記ターゲットに対向して配置された基板上にカーボン粒子が堆積する。
上記第1のカーボン電極膜の上に、相変化記憶層が形成される。
上記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで、上記ターゲットがスパッタされ、上記ターゲットに対向して配置された基板上にカーボン粒子が堆積する。
200…相変化型メモリ素子
203,205…カーボン電極膜
204…相変化記憶層
Claims (7)
- 0.6nm以下の表面粗さ(Rq)および1.2Ω・cm以下の抵抗率を有するカーボン電極膜の形成方法であって、
チャンバ内を0.3Pa以上1.2Pa以下のアルゴンガス雰囲気に維持し、
前記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで前記ターゲットをスパッタし、前記ターゲットに対向して配置された基板上にカーボン粒子を堆積させる
カーボン電極膜の形成方法。 - 請求項1に記載のカーボン電極膜の形成方法であって、
前記ターゲットのスパッタ方式は、RFマグネトロンスパッタ法である
カーボン電極膜の形成方法。 - 請求項1に記載のカーボン電極膜の形成方法であって、
前記ターゲットのスパッタ方式は、パルスDCマグネトロンスパッタ法である
カーボン電極膜の形成方法。 - チャンバ内を0.3Pa以上1.2Pa以下のアルゴンガス雰囲気に維持し、前記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで前記ターゲットをスパッタし、前記ターゲットに対向して配置された基板上に0.6nm以下の表面粗さ(Rq)および1.2Ω・cm以下の抵抗率を有する第1のカーボン電極膜を形成し、
前記第1のカーボン電極膜の上に、Ge−Sb−Te系の相変化記録層を形成する
相変化型メモリ素子の製造方法。 - 請求項4に記載の相変化型メモリ素子の製造方法であって、さらに、
チャンバ内を0.3Pa以上1.2Pa以下のアルゴンガス雰囲気に維持し、前記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで前記ターゲットをスパッタし、前記相変化記録層の上に0.6nm以下の表面粗さ(Rq)および1.2Ω・cm以下の抵抗率を有する第2のカーボン電極膜を形成する
相変化型メモリ素子の製造方法。 - 請求項5に記載の相変化型メモリ素子の製造方法であって、さらに、
前記第2のカーボン電極膜の上にセレクタを有し、
前記セレクタに用いられる電極は、チャンバ内を0.3Pa以上1.2Pa以下のアルゴンガス雰囲気に維持し、前記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで前記ターゲットをスパッタして得られる0.6nm以下の表面粗さ(Rq)および1.2Ω・cm以下の抵抗率を有するカーボン電極膜である
相変化型メモリ素子の製造方法。 - 請求項5に記載の相変化型メモリ素子の製造方法であって、さらに、
前記第1のカーボン電極膜の下にセレクタを有し、
前記セレクタに用いられる電極は、チャンバ内を0.3Pa以上1.2Pa以下のアルゴンガス雰囲気に維持し、前記チャンバ内に配置されたカーボン製のターゲットに、周波数が20kHz以上20MHz以下であり、パワーが0.1kW以上2kW以下である電源を印加することで前記ターゲットをスパッタして得られる0.6nm以下の表面粗さ(Rq)および1.2Ω・cm以下の抵抗率を有するカーボン電極膜である
相変化型メモリ素子の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2014024032 | 2014-02-12 | ||
JP2014024032 | 2014-02-12 | ||
PCT/JP2015/000523 WO2015122159A1 (ja) | 2014-02-12 | 2015-02-05 | カーボン電極膜の形成方法、カーボン電極および相変化型メモリ素子の製造方法 |
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JPWO2015122159A1 JPWO2015122159A1 (ja) | 2017-03-30 |
JP6298837B2 true JP6298837B2 (ja) | 2018-03-20 |
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JP2015562727A Active JP6298837B2 (ja) | 2014-02-12 | 2015-02-05 | カーボン電極膜の形成方法および相変化型メモリ素子の製造方法 |
Country Status (6)
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US (1) | US20170051396A1 (ja) |
JP (1) | JP6298837B2 (ja) |
KR (1) | KR20160104013A (ja) |
CN (1) | CN105980593A (ja) |
TW (1) | TWI645058B (ja) |
WO (1) | WO2015122159A1 (ja) |
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JP2021014626A (ja) * | 2019-07-16 | 2021-02-12 | 株式会社アルバック | カーボン電極膜の形成方法及び相変化型メモリ素子の製造方法 |
CN111748789B (zh) * | 2020-07-10 | 2022-06-24 | 哈尔滨工业大学 | 一种石墨阴极弧增强辉光放电沉积纯dlc的装置及其方法 |
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JPS6144705A (ja) * | 1984-08-09 | 1986-03-04 | Toshiba Corp | 導電性炭素被膜の形成方法 |
JPH0959760A (ja) * | 1995-08-25 | 1997-03-04 | Kao Corp | 炭素薄膜の製造方法 |
JPH1087397A (ja) * | 1996-09-06 | 1998-04-07 | Sanyo Electric Co Ltd | 硬質炭素被膜、及び該被膜を用いた電気シェーバー刃 |
US6086730A (en) * | 1999-04-22 | 2000-07-11 | Komag, Incorporated | Method of sputtering a carbon protective film on a magnetic disk with high sp3 content |
JP2001192206A (ja) * | 2000-01-05 | 2001-07-17 | Sumitomo Electric Ind Ltd | 非晶質炭素被覆部材の製造方法 |
WO2002088415A1 (fr) * | 2001-04-23 | 2002-11-07 | Sony Corporation | Procede de formation d'une couche |
JP4929531B2 (ja) * | 2001-04-27 | 2012-05-09 | 住友電気工業株式会社 | 導電性硬質炭素皮膜 |
KR100632948B1 (ko) * | 2004-08-06 | 2006-10-11 | 삼성전자주식회사 | 칼코겐화합물 스퍼터링 형성 방법 및 이를 이용한 상변화 기억 소자 형성 방법 |
KR100878872B1 (ko) * | 2007-09-03 | 2009-01-15 | 성균관대학교산학협력단 | 나노결정 전도성 탄소층을 게이트 전극으로 포함하여 이루어진 유기 박막 트랜지스터, 이의 제조방법 및 이를 포함하여 이루어진 유기 반도체 소자 |
JP2010020951A (ja) * | 2008-07-09 | 2010-01-28 | Kaneka Corp | 透明導電膜の製造方法 |
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2015
- 2015-02-05 US US15/118,681 patent/US20170051396A1/en not_active Abandoned
- 2015-02-05 WO PCT/JP2015/000523 patent/WO2015122159A1/ja active Application Filing
- 2015-02-05 CN CN201580008034.8A patent/CN105980593A/zh active Pending
- 2015-02-05 KR KR1020167020010A patent/KR20160104013A/ko active Search and Examination
- 2015-02-05 JP JP2015562727A patent/JP6298837B2/ja active Active
- 2015-02-11 TW TW104104542A patent/TWI645058B/zh active
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CN105980593A (zh) | 2016-09-28 |
TW201542846A (zh) | 2015-11-16 |
TWI645058B (zh) | 2018-12-21 |
US20170051396A1 (en) | 2017-02-23 |
KR20160104013A (ko) | 2016-09-02 |
JPWO2015122159A1 (ja) | 2017-03-30 |
WO2015122159A1 (ja) | 2015-08-20 |
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