JP2000332014A5 - - Google Patents

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Publication number
JP2000332014A5
JP2000332014A5 JP1999142616A JP14261699A JP2000332014A5 JP 2000332014 A5 JP2000332014 A5 JP 2000332014A5 JP 1999142616 A JP1999142616 A JP 1999142616A JP 14261699 A JP14261699 A JP 14261699A JP 2000332014 A5 JP2000332014 A5 JP 2000332014A5
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JP
Japan
Prior art keywords
substrate
nitrogen
insulating film
gas
heat treatment
Prior art date
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Pending
Application number
JP1999142616A
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Japanese (ja)
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JP2000332014A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP11142616A priority Critical patent/JP2000332014A/en
Priority claimed from JP11142616A external-priority patent/JP2000332014A/en
Publication of JP2000332014A publication Critical patent/JP2000332014A/en
Publication of JP2000332014A5 publication Critical patent/JP2000332014A5/ja
Pending legal-status Critical Current

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Description

【発明の名称】絶縁膜及び絶縁膜の生成方法 [Title of Invention] An insulating film and a method for producing the insulating film

【0001】
【発明の属する技術分野】
本発明は、フラッシュ・メモリのトンネル絶縁膜、或いは、通常の電界効果トランジスタに於けるゲート絶縁膜など薄膜の絶縁膜及び絶縁膜の生成方法の改良に関する。
[0001]
[Technical field to which the invention belongs]
The present invention relates to an improvement of a thin film insulating film such as a tunnel insulating film of a flash memory or a gate insulating film in a normal field effect transistor and a method for forming the insulating film.

【0030】
前記したところから、本発明に依る絶縁膜及び絶縁膜の生成方法に於いては、
(a)
基体(例えばシリコンからなるウエハや基板)表面上に形成されて少なくともシリコン及び酸素及び窒素を含む材料(例えばシリコン酸窒化膜を構成できる材料)からなる絶縁膜であって、光電子分光法に依る分析において、炭素1sピーク位置に依る帯電補正を行って得られる窒素1sピークが同じく帯電補正したSi3 4 結晶の窒素1sピーク位置と同じ位置になるように窒素が存在することを特徴とするか、或いは、
(b)
前記(a)に於いて、前記窒素は、前記基体との界面及びその近傍(例えば界面から約5〔Å〕程度)に存在することを特徴とするか、或いは、
(c)
前記(a)又は(b)に於いて、前記基体との界面及びその近傍を電子分光法で分析した場合に得られる窒素1sピーク位置が、光電子取り出し角を変化させても変化しない範囲の厚さであることを特徴とするか、或いは、
(d)
熱処理装置内に基体を設置し、前記熱処理装置内に酸素ガスを導入して前記基体の熱酸化処理を行ない、前記酸素ガスの導入を停止して不活性ガスを導入し、NOガスと前記不活性ガスとを所定の割合で同時に導入して前記基体の酸窒化処理を行ない、前記NOガスの導入を停止して前記熱処理装置内の温度を降温することを特徴とするか、或いは、
(e)
前記(d)に於いて、前記基体の酸窒化処理を行う際に、前記熱処理装置内の温度を所定温度に昇温することを特徴とする。
[0030]
From the above, in the insulating film and the method for producing the insulating film according to the present invention,
(A)
And at least silicon and oxygen and nitrogen (which can comprise, for example, a silicon oxynitride film material) material containing Tona Ru insulating film formed on a substrate (e.g. a wafer or substrate made of silicon) on the surface, due to photoelectron spectroscopy in the analysis, and wherein the nitrogen 1s peak obtained by performing electrostatic correction due to the carbon 1s peak positions, similarly charged corrected Si 3 N 4 nitrogen to be the same position as the nitrogen 1s peak position of the crystal is present Or
(B)
In the above (a), the nitrogen is characterized by being present at the interface with the substrate and its vicinity (for example, about 5 [Å] from the interface), or.
(C)
In (a) or (b), the thickness of the nitrogen 1s peak position obtained when the interface with the substrate and its vicinity are analyzed by electron spectroscopy does not change even if the photoelectron extraction angle is changed. Characterized by the fact that it is
(D)
A substrate is installed in the heat treatment apparatus, oxygen gas is introduced into the heat treatment apparatus to perform thermal oxidation treatment of the substrate, the introduction of the oxygen gas is stopped and an inert gas is introduced, and NO gas and the non-existent gas are introduced. It is characterized in that the active gas is simultaneously introduced at a predetermined ratio to perform the oxynitride treatment of the substrate, the introduction of the NO gas is stopped, and the temperature in the heat treatment apparatus is lowered.
(E)
The feature of the above (d) is that the temperature inside the heat treatment apparatus is raised to a predetermined temperature when the oxynitriding treatment of the substrate is performed.

【0063】
【発明の効果】
本発明に依る絶縁膜及び絶縁膜の生成方法に於いては、少なくともシリコン及び酸素及び窒素を含む材料からなる絶縁膜であって、光電子分光法に依る分析において、炭素1sピーク位置に依る帯電補正を行って得られる窒素1sピークが同じく帯電補正したSi3 4 結晶の窒素1sピーク位置と同じ位置になるように窒素が存在することを特徴とする絶縁膜を実現する。
[0063]
【Effect of the invention】
Is In the generation method of the insulating film and the insulating film according to the present invention, at least silicon and oxygen and a Ru insulating film name of a material containing nitrogen, in the analysis due to photoelectron spectroscopy, it depends on the carbon 1s peak positions charged nitrogen 1s peak obtained by performing correction, similarly charged corrected Si 3 N 4 nitrogen to be the same position as the nitrogen 1s peak position of the crystal realizes the insulating film, which exist.

Claims (5)

基体表面上に形成されて少なくともシリコン及び酸素及び窒素を含む材料からなる絶縁膜であって、
光電子分光法に依る分析において、炭素1sピーク位置に依る帯電補正を行って得られる窒素1sピークが同じく帯電補正したSi3 4 結晶の窒素1sピーク位置と同じ位置になるように窒素が存在すること
を特徴とする絶縁膜。
A Ru insulating film name of a material containing at least silicon and oxygen and nitrogen are formed on the substrate surface,
In the analysis according to the photoelectron spectroscopy, there is nitrogen as nitrogen 1s peak obtained by performing electrostatic correction due to the carbon 1s peak position, the same position as the same charge corrected Si 3 N 4 nitrogen 1s peak position of the crystal An insulating film characterized by:
前記窒素は、前記基体との界面及びその近傍に存在すること
を特徴とする請求項1に記載の絶縁膜。
The insulating film according to claim 1, wherein the nitrogen is present at an interface with the substrate and in the vicinity thereof.
前記基体との界面及びその近傍を電子分光法で分析した場合に得られる窒素1sピーク位置が光電子取り出し角を変化させても変化しない範囲の厚さであること
を特徴とする請求項1或いは請求項2記載の絶縁膜。
Claim 1 nitrogen 1s peak positions obtained when analyzed by the interface and near the electron spectroscopy thereof with the substrate, and wherein the varying the photoelectron take-off angle ranges in thickness that does not change Alternatively, the insulating film according to claim 2.
熱処理装置内に基体を設置し、Place the substrate in the heat treatment equipment,
前記熱処理装置内に酸素ガスを導入して前記基体の熱酸化処理を行ない、Oxygen gas is introduced into the heat treatment apparatus to thermally oxidize the substrate;
前記酸素ガスの導入を停止して不活性ガスを導入し、Stopping the introduction of the oxygen gas and introducing an inert gas;
NOガスと前記不活性ガスとを所定の割合で同時に導入して前記基体の酸窒化処理を行ない、Performing oxynitridation treatment on the substrate by simultaneously introducing NO gas and the inert gas at a predetermined ratio;
前記NOガスの導入を停止して前記熱処理装置内の温度を降温することStopping the introduction of the NO gas to lower the temperature in the heat treatment apparatus
を特徴とする絶縁膜の生成方法。A method of forming an insulating film characterized by
前記基体の酸窒化処理を行う際に、前記熱処理装置内の温度を所定温度に昇温することを特徴とする請求項4に記載の絶縁膜の生成方法。5. The method according to claim 4, wherein the temperature in the heat treatment apparatus is raised to a predetermined temperature when performing the oxynitriding treatment of the substrate.
JP11142616A 1999-05-24 1999-05-24 Insulating film Pending JP2000332014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11142616A JP2000332014A (en) 1999-05-24 1999-05-24 Insulating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11142616A JP2000332014A (en) 1999-05-24 1999-05-24 Insulating film

Publications (2)

Publication Number Publication Date
JP2000332014A JP2000332014A (en) 2000-11-30
JP2000332014A5 true JP2000332014A5 (en) 2004-12-09

Family

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Application Number Title Priority Date Filing Date
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004111538A (en) * 2002-09-17 2004-04-08 Fujitsu Ltd Semiconductor device, semiconductor device manufacturing method and evaluation method, and process condition evaluation method
KR100567530B1 (en) * 2003-12-30 2006-04-03 주식회사 하이닉스반도체 Oxide film formation method of semiconductor device

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