JP5293126B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP5293126B2 JP5293126B2 JP2008306773A JP2008306773A JP5293126B2 JP 5293126 B2 JP5293126 B2 JP 5293126B2 JP 2008306773 A JP2008306773 A JP 2008306773A JP 2008306773 A JP2008306773 A JP 2008306773A JP 5293126 B2 JP5293126 B2 JP 5293126B2
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- 239000004065 semiconductor Substances 0.000 title claims description 17
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- 229910002804 graphite Inorganic materials 0.000 claims description 92
- 239000010439 graphite Substances 0.000 claims description 92
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- 239000007769 metal material Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 26
- 239000003054 catalyst Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 3
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- 230000003197 catalytic effect Effects 0.000 description 20
- 239000011229 interlayer Substances 0.000 description 14
- 230000005291 magnetic effect Effects 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
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- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 7
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- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
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- 239000010936 titanium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 5
- 239000002041 carbon nanotube Substances 0.000 description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 description 5
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- 239000010941 cobalt Substances 0.000 description 5
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- 238000004050 hot filament vapor deposition Methods 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
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- 238000005259 measurement Methods 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910000449 hafnium oxide Inorganic materials 0.000 description 3
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000004506 ultrasonic cleaning Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000011246 composite particle Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 238000007664 blowing Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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- Electrodes Of Semiconductors (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Hall/Mr Elements (AREA)
- Thin Film Transistor (AREA)
- Laminated Bodies (AREA)
- Carbon And Carbon Compounds (AREA)
Description
先ず、第1の参考例について説明する。図1は、第1の参考例に係る強磁性体複合微粒子(複合材)の製造方法を示す図である。
次に、第1の実施形態について説明する。第1の実施形態では、図2に示す構成のメモリセルアレイを備えた磁気抵抗メモリを製造する。このメモリセルアレイでは、1個のメモリセルに、スイッチング素子と機能するトランジスタ25及び記憶素子として機能するTMR素子24が備えられている。トランジスタ25のソースは接地され、ゲートはワード線WLに接続されている。また、ドレインはTMR素子24の固定層21に接続されている。TMR素子24内では、磁化が固定された固定層21上に非磁性体層22が位置し、その上に、磁化の反転が可能な自由層23が位置する。そして、自由層23にビット線BLが接続されている。このような構成のメモリセルが、ワード線WLが延びる方向及びビット線BLが延びる方向において複数アレイ状に配置されている。
次に、第2の参考例について説明する。図6は、第2の参考例に係る複合材の製造方法を示す図である。
次に、第3の参考例について説明する。第3の参考例では、グラファイト層をチャネルとする電界効果トランジスタを製造する。図7は、第3の参考例に係る半導体装置の製造方法を示す断面図である。
次に、第4の参考例について説明する。第4の参考例では、第3の参考例と同様に、グラファイト層をチャネルとする電界効果トランジスタを製造する。図8は、第4の参考例に係る半導体装置の製造方法を示す断面図である。
次に、第5の参考例について説明する。第5の参考例では、強磁性体複合微粒子として、カーボンナノチューブを備えたものを形成する。図11は、第5の参考例に係る強磁性体複合微粒子(複合材)の製造方法を示す図である。
2:表面酸化微粒子
3:グラファイト被覆微粒子
4:カーボンナノチューブ
11:強磁性体金属微粒子
12:グラファイト層
21:固定層
22:非磁性体層
23:自由層
24:TMR素子
25:トランジスタ
52:表面酸化材
53:グラファイト被覆材
61:触媒金属材
62:グラファイト層
84、85:グラファイト被覆微粒子
86:非磁性体膜
109、111:グラファイト被覆微粒子
110、112:非磁性体膜
BL:ビット線
WL:ワード線
Claims (2)
- 強磁性体の第1の複合材を形成する工程と、
前記第1の複合材を含む、トンネル磁気抵抗素子の固定層を形成する工程と、
強磁性体の第2の複合材を形成する工程と、
前記第2の複合材を含む、前記トンネル磁気抵抗素子の自由層を形成する工程と、
を有し、
前記第1の複合材を形成する工程及び前記第2の複合材を形成する工程は、いずれも、
基体上に、強磁性体触媒金属材の微粒子及び前記微粒子の表面に形成された酸化膜を備えた表面酸化材を設ける工程と、
炭素を含有する雰囲気中で前記酸化膜を還元し、前記微粒子の表面に炭素材を析出させて前記微粒子を覆うグラファイト層を形成する工程と、
を有することを特徴とする半導体装置の製造方法。 - 前記固定層及び前記自由層を、前記固定層及び前記自由層の間に非磁性体膜を介在させて積層することを特徴とする請求項1に記載の半導体装置の製造方法。
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JP2008306773A JP5293126B2 (ja) | 2008-12-01 | 2008-12-01 | 半導体装置の製造方法 |
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JP2008306773A JP5293126B2 (ja) | 2008-12-01 | 2008-12-01 | 半導体装置の製造方法 |
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Publication Number | Publication Date |
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JP2010126429A JP2010126429A (ja) | 2010-06-10 |
JP5293126B2 true JP5293126B2 (ja) | 2013-09-18 |
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Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002285334A (ja) * | 2001-03-23 | 2002-10-03 | Nippon Telegr & Teleph Corp <Ntt> | カーボンナノチューブ成長方法 |
JP2004335259A (ja) * | 2003-05-07 | 2004-11-25 | Matsushita Electric Ind Co Ltd | 電気配線、電子デバイス、磁気抵抗効果素子、磁気ヘッド、磁気媒体、記録装置、及びそれらの製造方法 |
US20060210467A1 (en) * | 2005-03-17 | 2006-09-21 | Smith Steven M | Producing a stable catalyst for nanotube growth |
JP4892723B2 (ja) * | 2006-04-10 | 2012-03-07 | 国立大学法人 名古屋工業大学 | 磁性金属内包カーボンナノチューブ素子 |
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