JP2002531692A - 第iv副族の元素の錯体化合物 - Google Patents
第iv副族の元素の錯体化合物Info
- Publication number
- JP2002531692A JP2002531692A JP2000585249A JP2000585249A JP2002531692A JP 2002531692 A JP2002531692 A JP 2002531692A JP 2000585249 A JP2000585249 A JP 2000585249A JP 2000585249 A JP2000585249 A JP 2000585249A JP 2002531692 A JP2002531692 A JP 2002531692A
- Authority
- JP
- Japan
- Prior art keywords
- thd
- group
- complex
- precursor
- ligand
- 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
- 150000001875 compounds Chemical class 0.000 title claims description 8
- 239000002243 precursor Substances 0.000 claims abstract description 16
- 238000000151 deposition Methods 0.000 claims description 7
- 125000004213 tert-butoxy group Chemical group [H]C([H])([H])C(O*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 5
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003446 ligand Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
- 238000005229 chemical vapour deposition Methods 0.000 abstract description 8
- 150000004703 alkoxides Chemical class 0.000 abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 abstract description 5
- 229910021480 group 4 element Inorganic materials 0.000 abstract description 2
- 229910021478 group 5 element Inorganic materials 0.000 abstract description 2
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 8
- 125000004429 atom Chemical group 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical group [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003608 radiolysis reaction Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- MSXVEPNJUHWQHW-UHFFFAOYSA-N tertiary amyl alcohol Natural products CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/005—Compounds of elements of Group 5 of the Periodic Table without metal-carbon linkages
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Abstract
Description
および/または前駆体組合せ物を形成させる、第IV副族または第V副族の元素
の新規錯体に関する。CVD反応の開始時に蒸発される物質混合物(例えば、金
属錯体または前駆体および溶剤)は、前駆体組合せ物と呼称される。
る。例えば、SrBi2Ta2O9(SBT)のSVD析出のためには、[Ta
(OiPr)4thd]を有する前駆体組合せ物(第6欄;第42行参照)が使
用され、この前駆体組合せ物は、α位プロトンを有するアルコキシド配位子を有
するTa錯体、ひいては潜在的還元剤を(相応するケトンの形成下に)含有する
。
hd)3によって置換される(F. Hintermaier他, Vortrag auf dem Internatio
nal Symposium on Integrated Ferroelectrics, Monterey, CA, USA, 1998)。
しかし、Bi(thd)3は、還元剤の存在下で簡単に金属に還元される。その
ために、前駆体[Ta(OiPr)4thd]から、例えば加水分解によってH
OiPrが遊離され、これは還元剤として作用するかまたは配位子交換反応にお
いて [Ta(OiPr)4thd]+Bi(thd)3→Ta(thd)2(OiPr)3+Bi(thd)2(OiPr) によりBi(thd)2(OiPr)が形成され、これは、内部酸化還元反応に
おいてBi3+金属イオンの還元下に元素状蒼鉛を遊離する。
出の際に前駆体を安定性のままにしおよび/または配位子交換反応の場合に蒼鉛
をさらに酸化された形で含有する、CVD技術の反応条件下で熱安定の副生成物
の形成を促進させる新規の錯体化合物を提供することである。
めて要求の多い配位子なしのアルコキシドだけを有する請求項1記載の錯体化合
物によって解決される。
であり、 (R3C−O−)は、Rが同一でも異なっていてもよく、1〜24個のC原子を
有するアルキル基を示すようなアルコキシド配位子であり、分枝鎖状または直鎖
状であり、置換されていてもよいしおよび/または錯化されていてもよく、 xは、零ではなく、1〜4の整数であり、 yは、零ではなく、中心原子の酸化段階に応じて、2、3、4または5である〕
で示される錯体である。
記錯体の使用である。
である。
/または第三ペンチル基が使用される。
,6,6−テトラメチル−3,5−ヘプタンジオネートが使用される。
(thd)配位子と結合されている。
の最も頻繁な同位元素は、放射能分解を生じない。好ましくは、Ti、Zr、H
f、V、NbおよびTaからなる群からの金属である。特に好ましくは、Taが
使用される。
シド配位子と呼称され、これは、一般式 −O−CR3 〔式中、Rは、同一でも異なっていてもよく、1〜24個のC原子を有するアル
キル基を表わす〕を有し、分枝鎖状または直鎖状で置換されていてもよいしおよ
び/または錯化されていてもよい。この場合、例えばアルコラート配位子がなお
エーテル基、アミン基および/またはスルフィド基を有することは、好ましく、
これらの基は、中心原子に対して付加的な供与体機能を引き継ぐことができる。
れる。
の誘導体が使用される。
用される。別の好ましい配位子は、例えばアセチルアセトネート(acac);
ヘキサフルオロペンタンジオネート(hfac);1,1,1−トリフルオロ−
2,4−ペンタンジオネート(tfac);6,6,7,7,8,8,8−ヘプ
タフルオロ−2,2−ジメチル−3,5−オクタンジオネート;2,2,7−ト
リメチル−3,5−オクタンジオネート;1,1,1,5,5,6,6,7,7
,7−デカフルオロ−2,4−ヘプタンジオネート;および最後に1,1,1−
トリフルオロ−6−メチル−2,4−ジオネートである。
但し、pは1〜4の値をとることができる)から出発する。このタンタル−アル
コキシドは、製出のために、アルコール中、例えば第三ブチルアルコールまたは
ペンチルアルコール中でベンゾールの添加下に溶解され、還流下および同時に遊
離するアルコール(新規の錯体の形成を有利にするための平衡の移動)、この場
合にはメタノールの留去下で煮沸される。
aおよびbは、それぞれ1または2の値をとることができる)の形成下に反応す
るという利点を有する。更に、場合によっては発生する加水分解の際にアルコー
ルとしてtBuOHが遊離され、このtBuOHは、α位のプロトンを有さず、
したがって還元剤として作用しない。
発特性を有する。それというのも、双方の化合物は、同様の分子量を有するから
である。
合せ物 − Sr(thd)2(pmdeta)またはSr(thd)2(テトラグリメ
)、 − Bi(thd)3および − Ta(thd)(OtBu)4またはTa(thd)(OtPe)4が提案
されている。
役立つわけではない。むしろ、この錯体は、一般に金属酸化物を基礎とする薄膜
のCVD析出のために使用されることができる。
アクセスメモリーズ(DRAMs)および強誘電性ランダムアクセスメモリーズ
(FeRAMs)に使用される。
とができ、この五酸化タンタルは、将来のDRAMs世代において誘電体として
使用される。
しての請求項1から5までのいずれか1項に記載の錯体の使用。
)、 − Bi(thd)3および − Ta(thd)(OtBu)4またはTa(thd)(OtPe)4を含む
、SBTを析出するための前駆体組合せ物。
Claims (1)
- 【請求項1】 化合物 − Sr(thd)2(pmdeta)またはSr(thd)2(テトラグリメ
)、 − Bi(thd)3および − Ta(thd)(OtBu)4またはTa(thd)(OtPe)4を含む
、SBTを析出するための前駆体組合せ物。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19854640 | 1998-11-26 | ||
DE19854640.8 | 1998-11-26 | ||
PCT/DE1999/003495 WO2000032608A1 (de) | 1998-11-26 | 1999-11-02 | Komplexverbindung eines elements der iv nebengruppe |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002531692A true JP2002531692A (ja) | 2002-09-24 |
JP3566211B2 JP3566211B2 (ja) | 2004-09-15 |
Family
ID=7889143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000585249A Expired - Fee Related JP3566211B2 (ja) | 1998-11-26 | 1999-11-02 | Sbtを析出するための前駆体組合せ物 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6527848B2 (ja) |
EP (1) | EP1133499B1 (ja) |
JP (1) | JP3566211B2 (ja) |
KR (1) | KR100439444B1 (ja) |
CN (1) | CN1145632C (ja) |
DE (1) | DE59904296D1 (ja) |
WO (1) | WO2000032608A1 (ja) |
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US5820664A (en) | 1990-07-06 | 1998-10-13 | Advanced Technology Materials, Inc. | Precursor compositions for chemical vapor deposition, and ligand exchange resistant metal-organic precursor solutions comprising same |
AU1955395A (en) * | 1994-03-26 | 1995-10-17 | Drake, Simone Robert | Tantalum compounds |
US6214105B1 (en) * | 1995-03-31 | 2001-04-10 | Advanced Technology Materials, Inc. | Alkane and polyamine solvent compositions for liquid delivery chemical vapor deposition |
US5916359A (en) * | 1995-03-31 | 1999-06-29 | Advanced Technology Materials, Inc. | Alkane and polyamine solvent compositions for liquid delivery chemical vapor deposition |
JP3223800B2 (ja) * | 1996-07-25 | 2001-10-29 | 三菱マテリアル株式会社 | タンタル化合物 |
US6303391B1 (en) * | 1997-06-26 | 2001-10-16 | Advanced Technology Materials, Inc. | Low temperature chemical vapor deposition process for forming bismuth-containing ceramic films useful in ferroelectric memory devices |
US6133051A (en) * | 1998-06-30 | 2000-10-17 | Advanced Technology Materials, Inc. | Amorphously deposited metal oxide ceramic films |
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1999
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- 1999-11-02 EP EP99960855A patent/EP1133499B1/de not_active Expired - Lifetime
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JP3566211B2 (ja) | 2004-09-15 |
KR100439444B1 (ko) | 2004-07-09 |
US20020000175A1 (en) | 2002-01-03 |
EP1133499B1 (de) | 2003-02-12 |
DE59904296D1 (de) | 2003-03-20 |
KR20010080559A (ko) | 2001-08-22 |
WO2000032608A1 (de) | 2000-06-08 |
EP1133499A1 (de) | 2001-09-19 |
CN1145632C (zh) | 2004-04-14 |
US6527848B2 (en) | 2003-03-04 |
CN1328562A (zh) | 2001-12-26 |
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