JP7262912B2 - 金属膜形成用前駆体組成物、これを用いた金属膜形成方法、及び前記金属膜を含む半導体素子 - Google Patents
金属膜形成用前駆体組成物、これを用いた金属膜形成方法、及び前記金属膜を含む半導体素子 Download PDFInfo
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- JP7262912B2 JP7262912B2 JP2021531889A JP2021531889A JP7262912B2 JP 7262912 B2 JP7262912 B2 JP 7262912B2 JP 2021531889 A JP2021531889 A JP 2021531889A JP 2021531889 A JP2021531889 A JP 2021531889A JP 7262912 B2 JP7262912 B2 JP 7262912B2
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- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 5
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- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 3
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- 239000010937 tungsten Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Images
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
- 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
- C23C16/06—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 metallic material
- C23C16/18—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 metallic material from metallo-organic compounds
-
- 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
- C23C16/44—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 method of coating
- C23C16/448—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 method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
-
- 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
- C23C16/44—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 method of coating
- C23C16/455—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 method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
-
- 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
- C23C16/44—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 method of coating
- C23C16/48—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 method of coating by irradiation, e.g. photolysis, radiolysis, particle radiation
-
- 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
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Description
[化学式7]
(M1-aM”a)Ob
それぞれの化合物間の反応性を確認するために化合物を直接混合し、肉眼上の変化、核磁気共鳴(NMR)測定上の変化及び反応性等を確認した。必要に応じて熱重量分析、粘度及び熱安定性の物性を確認した。
原子層蒸着(Atomic Layer Deposition、ALD)装置を用いて、化合物1及び化合物4からなる組成物を適用した酸化物薄膜蒸着工程を行った。実験に使用した基板は、ベアSiウェハである。化合物1を前駆体として使用した工程(比較例1)によってZr酸化物薄膜を製造し、化合物2を前駆体として使用した工程(比較例2)によってHf酸化物薄膜を製造した。
Claims (14)
- 下記化学式1又は下記化学式3で表示されるジルコニウム化合物、及び下記化学式4又は化学式6で表示されるハフニウム化合物を含み、
前記ジルコニウム化合物及び前記ハフニウム化合物は0.1:99.9~65:35の重量比で混合されていることを特徴とする金属膜形成用前駆体組成物。
- 溶媒をさらに含むことを特徴とする、請求項1に記載の金属膜形成用前駆体組成物。
- 前記溶媒はC1~C16の飽和又は不飽和炭化水素、ケトン、エーテル、グライム、エステル、テトラヒドロフラン、及び第3級アミンのいずれか一つ又はそれ以上であることを特徴とする、請求項2に記載の金属膜形成用前駆体組成物。
- 前記溶媒は前記金属膜形成用前駆体組成物の全重量に対して0.1重量%~99重量%含むことを特徴とする、請求項2に記載の金属膜形成用前駆体組成物。
- 請求項1に記載の金属膜形成用前駆体組成物を用いて基板上に金属膜を蒸着するステップを含むことを特徴とする金属膜形成方法。
- 前記金属膜形成用前駆体組成物は溶媒をさらに含むことを特徴とする、請求項5に記載の金属膜形成方法。
- 前記溶媒は前記金属膜形成用前駆体組成物の全重量に対して0.1重量%~99重量%含むことを特徴とする、請求項6に記載の金属膜形成方法。
- 前記金属膜を原子層蒸着法(Atomic Layer Deposition)、化学気相蒸着法(Chemical Vapor Deposition)、及び蒸発法(Evaporation)のうちのいずれか一つの方法によって蒸着することを特徴とする、請求項5又は6に記載の金属膜形成方法。
- 前記金属膜形成用前駆体組成物を前記基板に供給する前駆体組成物伝達ステップをさらに含み、
前記前駆体組成物伝達ステップは、蒸気圧を利用して揮発移送方法、直接液体注入方法(Direct Liquid Injection)、及び液体移送方法(Liquid Delivery System)のうちのいずれか一つで行われていることを特徴とする、請求項5又は6に記載の金属膜形成方法。 - 前記蒸着は、
チャンバ内に基板を位置するステップと、
前記金属膜形成用前駆体組成物を前記チャンバ内に供給するステップと、
前記チャンバ内に反応性ガス又は反応性ガスのプラズマを供給するステップと、
前記チャンバ内で熱処理、プラズマ処理及び光照射のうちのいずれか一つ又はそれ以上の手段によって処理するステップと、を含むことを特徴とする、請求項5又は6に記載の金属膜形成方法。 - 前記反応性ガスは、水蒸気(H2O)、酸素(O2)、オゾン(O3)、過酸化水素(H2O2)、水素(H2)、アンモニア(NH3)、一酸化窒素(NO)、亜酸化窒素(N2O)、二酸化窒素(NO2)、ヒドラジン(N2H4)、及びシラン(SiH4)のうちのいずれか一つ又はそれ以上であり、前記反応性ガスのプラズマは、RFプラズマ、DCプラズマ、及びリモート(Remote)プラズマのうちのいずれか一つであることを特徴とする、請求項10に記載の金属膜形成方法。
- 前記チャンバ内の蒸着温度は250℃~400℃であることを特徴とする、請求項10に記載の金属膜形成方法。
- 請求項5又は6に記載の金属膜形成方法によって製造された金属膜を含むことを特徴とする半導体素子。
- 請求項5又は6に記載の金属膜形成方法によって製造された金属膜を含むトランジスタであって、
前記金属膜は前記トランジスタのゲート絶縁層を構成することを特徴とするトランジスタ。
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KR1020190160118A KR20200072407A (ko) | 2018-12-12 | 2019-12-04 | 금속막 형성용 전구체 조성물, 이를 이용한 금속막 형성 방법 및 상기 금속막을 포함하는 반도체 소자. |
PCT/KR2019/017151 WO2020122506A2 (ko) | 2018-12-12 | 2019-12-06 | 금속막 형성용 전구체 조성물, 이를 이용한 금속막 형성 방법 및 상기 금속막을 포함하는 반도체 소자. |
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