JP2005340721A - 高誘電率誘電体膜を堆積する方法 - Google Patents
高誘電率誘電体膜を堆積する方法 Download PDFInfo
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- JP2005340721A JP2005340721A JP2004160928A JP2004160928A JP2005340721A JP 2005340721 A JP2005340721 A JP 2005340721A JP 2004160928 A JP2004160928 A JP 2004160928A JP 2004160928 A JP2004160928 A JP 2004160928A JP 2005340721 A JP2005340721 A JP 2005340721A
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- H10P14/6329—
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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
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
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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
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
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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
- C23C14/225—Oblique incidence of vaporised material on substrate
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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
- C23C14/58—After-treatment
- C23C14/5846—Reactive treatment
- C23C14/5853—Oxidation
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- H10D64/0134—
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0181—Manufacturing their gate insulating layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
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- H10P14/69392—
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Physical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Abstract
【選択図】 図2
Description
第1の技術において、化学的プリカーサー、好ましくは金属有機複合物がプラズマまたは熱的エネルギによって分解され、そして適当なガスと反応して、望ましいより高い誘電率を有する誘電体物質を作る。この技術は通常MO−CVD技術と呼ばれている。
第2の方法において、2つの化学的媒介物が基板に対して導入され、それは各ガス導入の間でタイムブレークを交互に作りながら導入される。当該タイムブレークの間、第1に導入されたガスは基板の表面に吸収された分子を除いて排気される。第2の媒介物が導入されるとき、それは当該表面に吸収された第1ガスの分子と反応し、誘電体膜を形成する。それから、残存する過剰なガスは、次のガス投入に至るまでのタイムブレークの間に排気される。この技術は、原子層堆積(ALD)技術と呼ばれている。
[実施形態1]
(2): 当該ウェハーを乾燥する(ステップS1)。
(3): 反応性スパッタリング技術によってウェハー上にHfN膜を堆積する(ステップS2)。
(4): 約1%の含有率で酸素を含むほとんどが不活性ガスまたはN2である環境で400℃を越える高い温度でウェハーをアニールする(ステップS3)。
Arガス流速 20sccm
N2ガス流速 6sccm
DC電力 300W
成膜速度 2.4nm/分
成膜時間 12.5秒
HfN膜厚み 0.5nm
HfN膜抵抗値 516μ/Ωcm
HfN膜均一性 0.95%(1σ)
[実施形態2]
(2): ウェハーを乾燥する。
(3): NH3のガス雰囲気で500℃を越えて熱アニ−ルする。
(4): 反応性スパッタリング技術においてHfNを堆積する。
(5): 約1%の含有率の酸素を含むほとんどが不活性ガスまたはN2の雰囲気において400℃を越えるより高い温度でウェハーをアニールする。
[実施形態3]
(2): ウェハーを乾燥する。
(3): CVDまたはRTPプロセスによって下地層と呼ばれるSiO2またはSiONまたはSi3N4の非常に薄い層を堆積する。
(4): 反応性スパッタリング技術によってHfNを堆積する。
(5): 約1%の含有率の酸素を含むほとんどが不活性ガスまたはN2の雰囲気において400℃を越えるより高い温度でウェハーをアニールする。
11 ウェハーホルダ
12 ターゲット
19 マグネット配列
22 ウェハー
Claims (9)
- 基板のドープシリコン層またはドープシリコン化合物層に高誘電率誘電体膜を堆積する方法であり、
特定元素(A)を窒化して前記シリコン層上に窒化膜(AxNy)を形成する第1ステップであって、前記窒化膜(AxNy)で前記特定元素(A)と前記窒素(N)との間でxとyは所定割合の関係を有する前記第1ステップと、
前記窒化膜を酸素雰囲気で酸化し、酸化かつ窒化された前記誘電体膜(AON)を形成する第2ステップ、
を含む高誘電率誘電体膜を堆積する方法。 - 前記特定元素は、元素周期表の3族、4族、または5族に属するいずれかの元素である請求項1記載の高誘電率誘電体膜を堆積する方法。
- 前記窒化膜(AxNy)における前記特定元素(A)と前記窒素(N)は、yがそのストチオメトリック値(stochiometric value)よりも小さいという関係を有する請求項1記載の高誘電率誘電体膜を堆積する方法。
- 前記特定元素(A)はハフニウム(Hf)である請求項2記載の高誘電率誘電体膜を堆積する方法。
- 前記窒化膜(HfxNy)で前記ハフニウム(Hf)と前記窒素(N)はx=1に対して0<y<1.5の関係を有する請求項4記載の高誘電率誘電体膜を堆積する方法。
- 前記第2ステップでの酸化プロセスは400〜1000℃の温度範囲に含まれる特定温度で熱的アニールプロセスによって実行される請求項1〜5のいずれか1項に記載の高誘電率誘電体膜を堆積する方法。
- 膜堆積のために反応性スパッタリング法が用いられる請求項1〜6のいずれか1項に記載の高誘電率誘電体膜を堆積する方法。
- 前記シリコン層上にSiO2層、SiN層、およびSiON層のいずれかが設けられ、前記第2ステップで他の高誘電率誘電体膜(AON)が堆積する請求項1記載の高誘電率誘電体膜を堆積する方法。
- 前記第1ステップでの窒化プロセスのために供給される窒素ガス(N2)の流速は1〜15sccmの範囲に含まれるいずれかの値である請求項1記載の高誘電率誘電体膜を堆積する方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004160928A JP2005340721A (ja) | 2004-05-31 | 2004-05-31 | 高誘電率誘電体膜を堆積する方法 |
| US11/141,044 US7816283B2 (en) | 2004-05-31 | 2005-06-01 | Method of depositing a higher permittivity dielectric film |
| US12/419,320 US20090218217A1 (en) | 2004-05-31 | 2009-04-07 | Sputtering apparatus for depositing a higher permittivity dielectric film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004160928A JP2005340721A (ja) | 2004-05-31 | 2004-05-31 | 高誘電率誘電体膜を堆積する方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008284968A Division JP2009079301A (ja) | 2008-11-06 | 2008-11-06 | 反応性スパッタリング装置 |
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| Publication Number | Publication Date |
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| JP2005340721A true JP2005340721A (ja) | 2005-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004160928A Pending JP2005340721A (ja) | 2004-05-31 | 2004-05-31 | 高誘電率誘電体膜を堆積する方法 |
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| US (2) | US7816283B2 (ja) |
| JP (1) | JP2005340721A (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011029478A (ja) * | 2009-07-28 | 2011-02-10 | Canon Anelva Corp | 誘電体膜、誘電体膜を用いた半導体装置の製造方法及び半導体製造装置 |
| US10378100B2 (en) | 2008-06-25 | 2019-08-13 | Canon Anelva Corporation | Sputtering apparatus and recording medium for recording control program thereof |
| JP2021107916A (ja) * | 2019-12-23 | 2021-07-29 | アイメック・ヴェーゼットウェーImec Vzw | Euvlペリクルを形成する方法 |
| JPWO2022190817A1 (ja) * | 2021-03-11 | 2022-09-15 |
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| US8012442B2 (en) * | 2006-03-31 | 2011-09-06 | Tokyo Electron Limited | Method of forming mixed rare earth nitride and aluminum nitride films by atomic layer deposition |
| US20070237697A1 (en) * | 2006-03-31 | 2007-10-11 | Tokyo Electron Limited | Method of forming mixed rare earth oxide and aluminate films by atomic layer deposition |
| US7759746B2 (en) * | 2006-03-31 | 2010-07-20 | Tokyo Electron Limited | Semiconductor device with gate dielectric containing aluminum and mixed rare earth elements |
| US7816737B2 (en) * | 2006-03-31 | 2010-10-19 | Tokyo Electron Limited | Semiconductor device with gate dielectric containing mixed rare earth elements |
| US8097300B2 (en) * | 2006-03-31 | 2012-01-17 | Tokyo Electron Limited | Method of forming mixed rare earth oxynitride and aluminum oxynitride films by atomic layer deposition |
| US7767262B2 (en) * | 2006-09-29 | 2010-08-03 | Tokyo Electron Limited | Nitrogen profile engineering in nitrided high dielectric constant films |
| WO2008042695A2 (en) * | 2006-09-29 | 2008-04-10 | Tokyo Electron Limited | Semiconductor devices containing nitrided high dielectric constant films and method of forming |
| US20080079111A1 (en) * | 2006-09-29 | 2008-04-03 | Tokyo Electron Limited | Semiconductor devices containing nitrided high dielectric constant films |
| WO2009031232A1 (ja) * | 2007-09-07 | 2009-03-12 | Canon Anelva Corporation | スパッタリング方法および装置 |
| US8076241B2 (en) * | 2009-09-30 | 2011-12-13 | Tokyo Electron Limited | Methods for multi-step copper plating on a continuous ruthenium film in recessed features |
| US20120313186A1 (en) * | 2011-06-08 | 2012-12-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Polysilicon gate with nitrogen doped high-k dielectric and silicon dioxide |
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2005
- 2005-06-01 US US11/141,044 patent/US7816283B2/en not_active Expired - Fee Related
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2009
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10378100B2 (en) | 2008-06-25 | 2019-08-13 | Canon Anelva Corporation | Sputtering apparatus and recording medium for recording control program thereof |
| JP2011029478A (ja) * | 2009-07-28 | 2011-02-10 | Canon Anelva Corp | 誘電体膜、誘電体膜を用いた半導体装置の製造方法及び半導体製造装置 |
| JP2021107916A (ja) * | 2019-12-23 | 2021-07-29 | アイメック・ヴェーゼットウェーImec Vzw | Euvlペリクルを形成する方法 |
| JPWO2022190817A1 (ja) * | 2021-03-11 | 2022-09-15 | ||
| WO2022190817A1 (ja) * | 2021-03-11 | 2022-09-15 | 国立大学法人東京工業大学 | 強誘電性薄膜の形成方法、それを備える半導体装置 |
| JP7759126B2 (ja) | 2021-03-11 | 2025-10-23 | 国立大学法人東京科学大学 | 強誘電性薄膜の形成方法、それを備える半導体装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090218217A1 (en) | 2009-09-03 |
| US7816283B2 (en) | 2010-10-19 |
| US20050272196A1 (en) | 2005-12-08 |
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