JP2002053960A - Cvd raw material composition for depositing zirconium and hafnium silicate film, its production method and method for depositing silicate film using the same - Google Patents

Cvd raw material composition for depositing zirconium and hafnium silicate film, its production method and method for depositing silicate film using the same

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Publication number
JP2002053960A
JP2002053960A JP2000272283A JP2000272283A JP2002053960A JP 2002053960 A JP2002053960 A JP 2002053960A JP 2000272283 A JP2000272283 A JP 2000272283A JP 2000272283 A JP2000272283 A JP 2000272283A JP 2002053960 A JP2002053960 A JP 2002053960A
Authority
JP
Japan
Prior art keywords
otbu
composition
silicate film
raw material
depositing
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.)
Pending
Application number
JP2000272283A
Other languages
Japanese (ja)
Inventor
Hidekimi Kadokura
秀公 門倉
Katsunori Takeshita
克紀 竹下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kojundo Kagaku Kenkyusho KK
Original Assignee
Kojundo Kagaku Kenkyusho KK
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Filing date
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Application filed by Kojundo Kagaku Kenkyusho KK filed Critical Kojundo Kagaku Kenkyusho KK
Priority to JP2000272283A priority Critical patent/JP2002053960A/en
Publication of JP2002053960A publication Critical patent/JP2002053960A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a metallic alkoxide raw material composition for depositing a zirconium silicate or hafnium silicate film useful as a gate insulating film by a CVD method, further to provide its production method and to provide a film deposition method using the same composition. SOLUTION: Zr(OtBu)4+Si(OtBu)4 or Hf(OtBu)4+Si(OtBu)4 is suitable as a CVD raw material composition since the same is present as one liquid in the vicinity of room temperature, and the vaporizing characteristics and thermal decompositing characteristics of the components are close. Each component is mixed and dissolved and is thereafter distillated, by which a composition free from particles is produced. The one liquid composition of Zr(OtBu)4+Si(OtBu)4 is fed by liquid mass-flow, is vaporized and is subjected to CVD at 600 deg.C in an atmosphere containing oxygen, thereby, an amorphous zirconium silicate film can be deposited.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ゲート絶縁膜等と
して有用なジルコニウムシリケートあるいはハフニウム
シリケート膜を、化学気相成長法(CVD法)にて形成
するための原料として好適な金属アルコキシド組成物と
その製法およびそれを用いたシリケート膜の製法に関す
る。
The present invention relates to a metal alkoxide composition suitable as a raw material for forming a zirconium silicate or hafnium silicate film useful as a gate insulating film or the like by a chemical vapor deposition method (CVD method). The present invention relates to a method for producing the same and a method for producing a silicate film using the same.

【0002】[0002]

【従来の技術】LSIの高集積化に伴い、ゲート絶縁膜
として、ZrO、HfO、ZrSi、HfS
などの誘電率が10〜40程度の酸化物膜が検
討されている。G.D.Wilk et al.J.A
ppl.Phys.Vol.87,484(2000)
は、スパッタリングで作成したZrSi、HfS
膜が良好な電気特性と膜モフォロジーを有して
いることを開示している。ZrSi、HfSi
膜をCVD法で形成するための原料としては、金属
塩化物や金属アルコキシドがある。この金属アルコキシ
ドとしては、SiO源としてテトラエトキシシランS
i(OEt)、ZrO源としてZr(OtB
u)、Zr(OiPr)、Zr(OEt)、Zr
(dpm)などが検討されている。ZrとSiの化合
物を1液で供給し、気化させ、CVDできることが好ま
しいが、まだそのような技術は開発されていない。異な
ったアルコキシ基の金属アルコキシドを混合すると、ア
ルコキシ基の交換反応がおき、複雑な化合物の混合体に
なり、融点、蒸気圧、蒸発特性などが一定にならず、C
VDの原料としては問題があるからである。またアルコ
キシシランの熱分解堆積温度は一般にZrアルコキシド
のそれより、200℃位高いので、膜組成と原料組成で
大きく異なってしまうという問題がある。
Along with high integration of the Related Art LSI, as a gate insulating film, ZrO 2, HfO 2, ZrSi x O y, HfS
i x O y oxide film dielectric constant of about 10 to 40, such as has been studied. G. FIG. D. See Wilk et al. J. A
ppl. Phys. Vol. 87,484 (2000)
Is, ZrSi x O y created by sputtering, HfS
i x O y film is disclosed to have good electrical properties and film morphology. ZrSi x O y, HfSi x
The O y film as a raw material for forming a CVD method, there is a metal chloride or a metal alkoxide. As this metal alkoxide, tetraethoxysilane S is used as a SiO 2 source.
i (OEt) 4, as ZrO 2 source Zr (OTB
u) 4 , Zr (OiPr) 4 , Zr (OEt) 4 , Zr
(Dpm) 4 and the like are being studied. It is preferable that the compound of Zr and Si can be supplied in one liquid, vaporized, and subjected to CVD, but such a technique has not been developed yet. When metal alkoxides of different alkoxy groups are mixed, an exchange reaction of the alkoxy groups occurs, resulting in a complex mixture of compounds, and the melting point, vapor pressure, evaporation characteristics, etc. are not constant, and C
This is because there is a problem as a raw material for VD. Further, since the thermal decomposition deposition temperature of alkoxysilane is generally about 200 ° C. higher than that of Zr alkoxide, there is a problem that the film composition and the raw material composition are greatly different.

【0003】[0003]

【発明が解決しようとする課題】ジルコニウムシリケー
トあるいはハフニウムシリケート膜を、CVD法にて形
成するための原料として好適な金属アルコキシド組成物
を提供することである。より詳しくは、その組成物が、
ZrあるいはHfアルコキシドと、アルコキシシランと
のアルコキシ基の交換反応を起こすことなく、ほぼ同じ
気化性質や熱分解堆積温度を持ち、室温付近で液体であ
るものを提供することである。さらにその組成物の製法
およびそれを用いたジルコニウムシリケートあるいはハ
フニウムシリケート膜の製法を提供することである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a metal alkoxide composition suitable as a raw material for forming a zirconium silicate or hafnium silicate film by a CVD method. More specifically, the composition comprises
An object of the present invention is to provide a liquid which has almost the same vaporization property and thermal decomposition deposition temperature without causing an exchange reaction of an alkoxy group between a Zr or Hf alkoxide and an alkoxysilane, and is liquid at around room temperature. Another object of the present invention is to provide a method for producing the composition and a method for producing a zirconium silicate or hafnium silicate film using the composition.

【0004】[0004]

【課題を解決するための手段】本発明は、ジルコニウム
テトラターシャリブトキシドまたはハフニウムテトラタ
ーシャリブトキシドと、テトラターシャリブトキシシラ
ンとからなるジルコニウムまたはハフニウムシリケート
膜形成用CVD原料組成物である。本発明は、ジルコニ
ウムテトラターシャリブトキシドまたはハフニウムテト
ラターシャリブトキシドの割合が25モル%以上である
ジルコニウムテトラターシャリブトキシドまたはハフニ
ウムテトラターシャリブトキシドと、テトラターシャリ
ブトキシシランとからなるジルコニウムまたはハフニウ
ムシリケート膜形成用CVD原料組成物である。この組
成物は25〜30℃で液体である。本発明は、ジルコニ
ウムテトラターシャリブトキシドまたはハフニウムテト
ラターシャリブトキシドと、テトラターシャリブトキシ
シランとを混合溶解し、次いで蒸留することを特徴とす
る原料組成物の製法である。本発明は、ジルコニウムテ
トラターシャリブトキシドまたはハフニウムテトラター
シャリブトキシドと、テトラターシャリブトキシシラン
とからなる組成物を用いることを特徴とするCVD法に
よるジルコニウムおよびハフニウムシリケート膜の製法
である。
SUMMARY OF THE INVENTION The present invention is a CVD raw material composition for forming a zirconium or hafnium silicate film comprising zirconium tetratertiary butoxide and hafnium tetratertiary butoxide and tetratertiary butoxysilane. The present invention provides a zirconium or hafnium silicate film composed of zirconium tetratertiary butoxide or zirconium tetratertiary butoxide having a proportion of 25 mol% or more of zirconium tetratertiary butoxide and tetratertiary butoxy silane. It is a CVD raw material composition. This composition is liquid at 25-30 ° C. The present invention is a method for producing a raw material composition, which comprises mixing and dissolving zirconium tetra-tertiary-butoxide or hafnium tetra-tertiary-butoxide with tetra-tertiary-butoxy-silane, followed by distillation. The present invention is a method for producing a zirconium and hafnium silicate film by a CVD method, characterized by using a composition comprising zirconium tetra-tertiary-butoxide or hafnium tetra-tertiary-butoxide and tetra-tertiary-butoxy-silane.

【0005】アルコキシ基の交換を防ぐにはZrまたは
Hfと、Siが同一のアルコキシ基を持つことが必要で
ある。それらの組み合わせのアルコキシドの融点、蒸気
圧、液、固体、気体の会合度を表1に示した。表中
本発明者らの実測値である。
In order to prevent the exchange of the alkoxy group, it is necessary that Zr or Hf and Si have the same alkoxy group. Table 1 shows the melting points, vapor pressures, liquid, solid, and gas association degrees of the alkoxides of those combinations. In the table, * is the measured value of the present inventors.

【0006】[0006]

【表1】 [Table 1]

【0007】表1よりOEtの組み合わせやOiPrの
組み合わせはZrアルコキシドまたはHfアルコキシド
の融点が室温よりかなり高く、かつその蒸気圧がアルコ
キシシランよりかなり低く、混合体は好ましい物性を示
さないことがわかる。これに対して、OtBuの組み合
わせは、融点が室温に近く、蒸気圧がほぼ同一であり、
混合体は好ましい物性を持つ可能性があることがわか
る。この推測に基づき、以下の実験を行った。
From Table 1, it can be seen that the combination of OEt and the combination of OiPr have a melting point of Zr alkoxide or Hf alkoxide which is considerably higher than room temperature and a vapor pressure which is much lower than that of alkoxysilane, and the mixture does not show preferable physical properties. On the other hand, the combination of OtBu has a melting point close to room temperature and almost the same vapor pressure,
It can be seen that the mixture may have favorable physical properties. Based on this assumption, the following experiment was performed.

【0008】(1)融点測定:Zr−Si系 純品およびZr(OtBu)とSi(OtBu)
所定のモル比で混合した系をそれぞれ約10g作り、そ
の融点を目視で測定した。その結果を表2に示した。Z
r(OtBu)が含まれた系は過冷却しやすかった。
この実験の結果Zr(OtBu)が0.25以上で
は、25℃で液体であることを見出した。
(1) Melting point measurement: Zr-Si system A pure product and a system in which Zr (OtBu) 4 and Si (OtBu) 4 were mixed at a predetermined molar ratio were prepared in an amount of about 10 g each, and the melting points thereof were visually measured. The results are shown in Table 2. Z
The system containing r (OtBu) 4 was easily supercooled.
As a result of this experiment, it was found that when Zr (OtBu) 4 was 0.25 or more, it was a liquid at 25 ° C.

【0009】[0009]

【表2】 [Table 2]

【0010】(2)融点測定:Hf−Si系 純品およびHf(OtBu)とSi(OtBu)
所定のモル比で混合した系をそれぞれ約10g作り、そ
の融点を目視で測定した。その結果を表3に示した。H
f(OtBu)が含まれた系は過冷却しやすかった。
この実験の結果Hf(OtBu)が0.25以上で
は、30℃で液体であることを見出した。
(2) Melting point measurement: Hf-Si system A pure product and a system in which Hf (OtBu) 4 and Si (OtBu) 4 were mixed at a predetermined molar ratio were prepared in an amount of about 10 g each, and the melting points were visually measured. Table 3 shows the results. H
The system containing f (OtBu) 4 was easily supercooled.
As a result of this experiment, it was found that when Hf (OtBu) 4 was 0.25 or more, it was a liquid at 30 ° C.

【0011】[0011]

【表3】 [Table 3]

【0012】(3)組成物の単蒸留 0.49Zr(OtBu)+0.51Si(OtB
u)の液8.6gを蒸留釜に仕込み0.5Torrで
単蒸留した。留出温度53〜56℃で、3留分に分けて
回収した。全量が留出した。留分のZrを分析した。そ
の結果を表4に示した。表中はZrの分析値から計算
した。この実験の結果、どの留分もZrとSiの比率が
ほぼ同じであることを見出した。このことはZrとSi
のアルコキシドがほぼ同じように気化するということを
示している。
(3) Simple distillation of the composition 0.49 Zr (OtBu) 4 +0.51 Si (OtB)
u) 8.6 g of the liquid No. 4 was charged into a distillation still and subjected to simple distillation at 0.5 Torr. At a distillation temperature of 53 to 56 ° C., the fraction was collected in three fractions. All distilled. The fraction was analyzed for Zr. Table 4 shows the results. * In the table was calculated from the analysis value of Zr. As a result of this experiment, it was found that the ratio of Zr and Si was almost the same for all the fractions. This means that Zr and Si
Alkoxides vaporize in much the same way.

【0013】[0013]

【表4】 [Table 4]

【0014】(4)組成物のTG−DTA 実施例1で得られた0.49Zr(OtBu)+0.
51Si(OtBu)の組成物をTG−DTA測定し
た。 測定条件 試料重量:18.9mg 雰囲気:Ar 1気圧 昇温速度:10.0deg/min 結果を図1に示した。ほぼ1成分として気化しているこ
とがわかる。これらの実験の結果Zr(OtBu)
Si(OtBu)の組成物はCVD用原料として優れ
た気化特性を有していることがわかる。
(4) TG-DTA of composition 0.49Zr (OtBu) 4 +0.09 obtained in Example 1.
The composition of 51Si (OtBu) 4 was measured by TG-DTA. Measurement conditions Sample weight: 18.9 mg Atmosphere: Ar 1 atm Heating rate: 10.0 deg / min The results are shown in FIG. It can be seen that it is vaporized as almost one component. As a result of these experiments, Zr (OtBu) 4 +
It can be seen that the composition of Si (OtBu) 4 has excellent vaporization characteristics as a raw material for CVD.

【0015】(5)熱分解温度の測定 Zr(OtBu)は酸素を含んだ雰囲気、350〜5
00℃でZrOを生成することは公知である。Si
(OtBu)の熱分解温度を熱分解ガスクロマトグラ
フィーで調べた結果、400〜500℃で起こることが
わかった。これに対して、Si(OEt)のそれは6
00〜700℃と高温であった。Si(OtBu)
Zr(OtBu)に近い温度で分解するので、好まし
いと推定される。
(5) Measurement of thermal decomposition temperature Zr (OtBu) 4 is an atmosphere containing oxygen, 350 to 5
It is known to produce ZrO 2 at 00 ° C. Si
As a result of examining the thermal decomposition temperature of (OtBu) 4 by pyrolysis gas chromatography, it was found to occur at 400 to 500 ° C. On the other hand, that of Si (OEt) 4 is 6
The temperature was as high as 00 to 700 ° C. Since Si (OtBu) 4 decomposes at a temperature close to Zr (OtBu) 4 , it is estimated to be preferable.

【0016】[0016]

【発明の実施の形態】本発明の組成物の一成分であるS
i(OtBu)の製造は、Si(OEt)に比べて
手間がかかるが、M.G.Voronkovら(CA
Vol.51,8643)、J.Franklin H
ydeら(CA Vol.50,3216)、H.Br
eederveldら(CA Vol.49,879
2)の方法などによって行う。融点は56℃であり室温
で固体であるが、通常の蒸留が可能であり、高純度化が
できる。
BEST MODE FOR CARRYING OUT THE INVENTION S which is one component of the composition of the present invention
The production of i (OtBu) 4 is more laborious than Si (OEt) 4 , but M.I. G. FIG. Voronkov et al. (CA
Vol. 51,8643); Franklin H
yde et al. (CA Vol. 50, 3216); Br
eedeveld et al. (CA Vol. 49, 879).
This is performed by the method 2) or the like. Although the melting point is 56 ° C. and it is solid at room temperature, ordinary distillation is possible and high purity can be achieved.

【0017】本発明の組成物の製法は、Zr(OtB
u)またはHf(OtBu)と、Si(OtBu)
とを混合溶解した後、蒸留することである。混合溶解
しただけの液には、多数の微粒子(パーティクル)があ
る。これはSi(OtBu)を固体で取り扱う場合、
液体に比べ、微量の大気が混入しやすいので、その湿気
によりわずかにZr(OtBu)またはHf(OtB
u)が加水分解して水酸化物が生成するためである。
もちろん56℃以上で液体として扱えばその問題は軽減
されるが、Zr(OtBu)やHf(OtBu)
身が非常に加水分解しやすいので、調合の際多少の微粒
子が生成するのは避けがたい。そこで調合後に蒸留する
ことにより、組成物の微粒子(パーティクル)をなくせ
る。蒸留前の組成物液体に赤色レーザーポインターで光
線をあてると、多くの微粒子が認められるが、蒸留後の
組成物には、全く微粒子は認められなかった。
The composition of the present invention is prepared by the method of Zr (OtB
u) 4 or Hf (OtBu) 4 and Si (OtBu)
4 and was mixed and dissolved, and to distillation. There are many fine particles (particles) in the liquid that has just been mixed and dissolved. This is because when Si (OtBu) 4 is handled as a solid,
Since a small amount of air is easily mixed in compared with liquid, Zr (OtBu) 4 or Hf (OtB)
u) 4 is hydrolyzed to form a hydroxide.
Of course, if the liquid is treated at 56 ° C. or higher, the problem is reduced, but Zr (OtBu) 4 and Hf (OtBu) 4 themselves are very easily hydrolyzed. It is hard. Therefore, fine particles (particles) of the composition can be eliminated by distillation after the preparation. When light was applied to the composition liquid before distillation with a red laser pointer, many fine particles were recognized, but no fine particles were recognized in the composition after distillation.

【0018】[0018]

【実施例1】0.49Zr(OtBu)+0.51S
i(OtBu)の組成物の製造 室温でZr(OtBu)18.8g(49mmol)
に固体のSi(OtBu)16.4g(51mmo
l)を攪拌しがら添加すると、完全に溶けた微淡黄色の
液体となった。この液を0.5Torr、留出温度55
℃で減圧単蒸留し、無色透明液34.5gを得た。蒸留
釜の内壁に痕跡量の膜が付着していた他は、全量回収さ
れた。収率98%であった。この液に赤色レーザーポイ
ンターをあてた目視観察では、パーティクルはなかっ
た。この液の融点は8℃であった。純度分析の結果、C
a2ppm、Fe1ppm、Na1ppmだけが検出さ
れた。この液は3ケ月後経過後も全く変化はなかった。
Example 1 0.49Zr (OtBu) 4 + 0.51S
i (OtBu) in the production room temperature 4 composition Zr (OtBu) 4 18.8g (49mmol )
16.4 g of solid Si (OtBu) 4 (51 mmo)
l) was added with stirring to give a completely dissolved slightly pale yellow liquid. 0.5 Torr of this solution and a distillation temperature of 55
Distillation under reduced pressure at ℃ gave 34.5 g of a colorless and transparent liquid. The entire amount was recovered, except that a trace amount of the film adhered to the inner wall of the still. The yield was 98%. Visual observation with a red laser pointer applied to this liquid revealed no particles. The melting point of this liquid was 8 ° C. As a result of the purity analysis, C
Only a2 ppm, Fe1 ppm, and Na1 ppm were detected. This solution did not change at all after 3 months.

【0019】[0019]

【実施例2】CVDによるジルコニウムシリケート膜の
成膜 実施例1と同様にして製造した0.25Zr(OtB
u)+0.75Si(OtBu)液体組成物を液体
マスフローを通して、0.1g/minで120℃の気
化器に送り気化させ、キャリヤーガスAr50sccm
と共にCVD室に導入した。一方これに、予熱したO
ガス20sccmをCVD室の入口で混合し、反応圧力
10Torr、600℃の加熱されたpt基板上に導
き、熱分解堆積させ、膜厚120nmの膜を作った。X
RD分析の結果、この膜は非常に弱い正方晶ZrO
含んだアモルファス状であった。この膜を溶解しICP
発光分光分析した結果、原子比Zr/Si=36/64
であった。
Example 2 Film formation of zirconium silicate film by CVD 0.25Zr (OtB) manufactured in the same manner as in Example 1.
u) 4 + 0.75Si (OtBu) 4 liquid composition is sent through a liquid mass flow to a vaporizer at 120 ° C. at 0.1 g / min to be vaporized, and a carrier gas Ar of 50 sccm is used.
At the same time. Meanwhile, the preheated O 2
A gas of 20 sccm was mixed at the entrance of the CVD chamber, introduced onto a heated pt substrate at a reaction pressure of 10 Torr and at 600 ° C., and thermally deposited to form a film having a thickness of 120 nm. X
As a result of RD analysis, this film was in an amorphous state containing very weak tetragonal ZrO 2 . Dissolve this film and ICP
As a result of emission spectral analysis, the atomic ratio Zr / Si = 36/64.
Met.

【0020】[0020]

【発明の効果】Zr(OtBu)+Si(OtBu)
の組成物は30℃以下で液体であり、ほぼ一成分とし
て蒸発し、これを用いてCVDを行うと、ジルコニウム
シリケート膜が容易に形成できる。一液のため量産に好
適である。
According to the present invention, Zr (OtBu) 4 + Si (OtBu)
The composition No. 4 is a liquid at 30 ° C. or lower and evaporates as almost one component, and when this is used for CVD, a zirconium silicate film can be easily formed. Suitable for mass production because of one liquid.

【図面の簡単な説明】[Brief description of the drawings]

【図1】0.49Zr(OtBu)+0.51Si
(OtBu)の組成物のTG−DTAによる測定結果
を示す図である。
FIG. 1 shows 0.49Zr (OtBu) 4 + 0.51Si
It is a figure which shows the measurement result by TG-DTA of the composition of (OtBu) 4 .

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】M(MはZrあるいはHfを表す)テトラ
ターシャリブトキシドとテトラターシャリブトキシシラ
ンとからなるMシリケート膜形成用CVD原料組成物。
1. A CVD raw material composition for forming an M silicate film, comprising M (M represents Zr or Hf) tetratertiary butoxide and tetratertiary butoxysilane.
【請求項2】Mテトラターシャリブトキシドの割合が2
5モル%以上である請求項1記載の組成物。
2. The method according to claim 1, wherein the proportion of M tetratertiary butoxide is 2
The composition according to claim 1, which is at least 5 mol%.
【請求項3】Mテトラターシャリブトキシドとテトラタ
ーシャリブトキシシランとを混合溶解し、次いで蒸留す
ることを特徴とする請求項1および請求項2記載の組成
物の製法。
3. The method according to claim 1, wherein M tetra-tertiary-butoxide and tetra-tertiary-butoxy-silane are mixed and dissolved, followed by distillation.
【請求項4】請求項1および請求項2記載の組成物を用
いることを特徴とするCVD法によるMシリケート膜の
製法。
4. A method for producing an M silicate film by a CVD method, wherein the composition according to claim 1 is used.
JP2000272283A 2000-08-04 2000-08-04 Cvd raw material composition for depositing zirconium and hafnium silicate film, its production method and method for depositing silicate film using the same Pending JP2002053960A (en)

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WO2004009867A2 (en) * 2002-07-22 2004-01-29 Saes Getters S.P.A. Zirconium complex used for the cvd method and preparation method of a thin film using thereof
JP2005203730A (en) * 2003-12-18 2005-07-28 Seiko Epson Corp Insulating film, semiconductor element, electron device, and electronic apparatus
WO2005093126A1 (en) * 2004-03-05 2005-10-06 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for forming dielectric or metallic films
WO2006025515A1 (en) * 2004-09-02 2006-03-09 Mitsubishi Materials Corporation RAW MATERIAL LIQUID FOR METAL ORGANIC CHEMICAL VAPOR DEPOSITION AND METHOD FOR PRODUCING Hf-Si CONTAINING COMPLEX OXIDE FILM USING SUCH RAW MATERIAL LIQUID
US9184061B2 (en) 2002-08-28 2015-11-10 Micron Technology, Inc. Systems and methods for forming zirconium and/or hafnium-containing layers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004009867A2 (en) * 2002-07-22 2004-01-29 Saes Getters S.P.A. Zirconium complex used for the cvd method and preparation method of a thin film using thereof
WO2004009867A3 (en) * 2002-07-22 2004-03-18 Getters Spa Zirconium complex used for the cvd method and preparation method of a thin film using thereof
US9184061B2 (en) 2002-08-28 2015-11-10 Micron Technology, Inc. Systems and methods for forming zirconium and/or hafnium-containing layers
JP2005203730A (en) * 2003-12-18 2005-07-28 Seiko Epson Corp Insulating film, semiconductor element, electron device, and electronic apparatus
US7696047B2 (en) 2003-12-18 2010-04-13 Seiko Epson Corporation Method for evaluating a gate insulation film characteristic for use in a semiconductor device
WO2005093126A1 (en) * 2004-03-05 2005-10-06 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for forming dielectric or metallic films
US7482286B2 (en) 2004-03-05 2009-01-27 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for forming dielectric or metallic films
WO2006025515A1 (en) * 2004-09-02 2006-03-09 Mitsubishi Materials Corporation RAW MATERIAL LIQUID FOR METAL ORGANIC CHEMICAL VAPOR DEPOSITION AND METHOD FOR PRODUCING Hf-Si CONTAINING COMPLEX OXIDE FILM USING SUCH RAW MATERIAL LIQUID

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