JP4542807B2 - 成膜方法および成膜装置、ならびにゲート絶縁膜の形成方法 - Google Patents
成膜方法および成膜装置、ならびにゲート絶縁膜の形成方法 Download PDFInfo
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Description
図1は本発明に係る成膜方法の一実施形態を実施するための成膜装置を示す断面図である。この成膜装置100は、気密に構成された略円筒状のチャンバー1を有しており、その中には被処理体であるSi基板(ウエハ)Wを水平に支持するためのサセプタ2がその中央下部に設けられた円筒状の支持部材3により支持された状態で配置されている。このサセプタ2はAlN等のセラミックスからなっている。また、サセプタ2にはヒーター5が埋め込まれており、このヒーター5にはヒーター電源6が接続されている。一方、サセプタ2の上面近傍には熱電対7が設けられており、熱電対7の信号はコントローラ8に伝送されるようになっている。そして、コントローラ8は熱電対7の信号に応じてヒーター電源6に指令を送信し、ヒーター5の加熱を制御してSiウエハWを所定の温度に制御するようになっている。
図2はHTBの熱分解特性を示す赤外吸収スペクトル図である。この図に示すように、成膜温度が低い場合には、ターシャリブチル基(t−C4H9)が多く発生する。t−C4H9は炭素分が多く、揮発しにくいため、これが多いと膜中の炭素不純物となって特性に悪影響を与えるものと考えられる。これに対し、成膜温度が上昇するに従って、t−C4H9が徐々に低下し、イソブチレンが増加する。これは、以下の(2)式に示す反応により、HTBが水酸化ハフニウムとイソブチレンに分解したためと考えられる。
図7の(a)〜(c)は、基板温度を360℃、495℃、542℃とし、Si2H6ガスの流量を40mL/minとしてハフニウムシリケート膜を成膜した場合のXPSスペクトル(検出角度15度)を示す図である。なお、膜厚は上記それぞれの温度条件で、10.1nm、8.3nm、8.4nmである。この図に示すように、495℃では100eV付近にSi−Si結合に対応するピークが認められ、542℃ではそのピークが顕著なものとなっているが、360℃ではこのようなピークは見られない。このことから、495℃以上で膜中にSi−Si結合が生じていることが確認された。
2…サセプタ
5…ヒーター
6…ヒーター電源
7…熱電対
8…コントローラ
10…シャワーヘッド
30…ガス供給系
31…HTBタンク
35…気化ユニット
43…Si2H6ガス供給源
100…成膜装置
W…Siウエハ
Claims (16)
- 金属アルコキシド原料とシリコン水素化物原料とを用いて、CVDにより基板上に金属シリケート膜を成膜する成膜方法であって、
前記金属アルコキシド原料がターシャリブトキシル基を配位子とするものであり、
成膜の際の基板温度を、前記ターシャリブトキシル基を配位子とする金属アルコキシド原料が金属水酸化物とイソブチレンに分解する温度以上で、かつ前記シリコン水素化物の自己分解温度以下に設定して金属シリケート膜を成膜することを特徴とする成膜方法。 - 前記金属アルコキシドはハフニウムテトラターシャリブトキサイド(HTB)であることを特徴とする請求項1に記載の成膜方法。
- 前記成膜の際の基板温度は350℃以上であることを特徴とする請求項2に記載の成膜方法。
- 前記シリコン水素化物がジシラン(Si2H6)であることを特徴とする請求項1から請求項3のいずれか1項に記載の成膜方法。
- 前記成膜の際の基板温度は450℃以下であることを特徴とする請求項4に記載の成膜方法。
- 成膜の際に、枚様式成膜装置を用いることを特徴とする請求項1から請求項5のいずれか1項に記載の成膜方法。
- 金属アルコキシド原料とシリコン水素化物原料とを用いて、CVDにより基板上に金属シリケート膜を成膜する成膜装置であって、
基板が収容される処理容器と、
金属アルコキシド原料を気化する手段を有し、気化された金属アルコキシド原料とシリコン水素化物原料を前記処理容器まで独立に供給する原料供給系と、
前記気化された金属アルコキシド原料と前記シリコン水素化物原料を前記処理容器内に導入するシャワーヘッドと、
前記金属アルコキシド原料がターシャリブトキシル基を配位子とするものであり、前記基板の温度を、前記ターシャリブトキシル基を配位子とする金属アルコキシド原料が金属水酸化物とイソブチレンに分解する温度以上で、かつ前記シリコン水素化物の自己分解温度以下に制御する温度制御手段と
を具備することを特徴とする成膜装置。 - 前記金属アルコキシドはハフニウムテトラターシャリブトキサイド(HTB)であることを特徴とする請求項7に記載の成膜装置。
- 前記温度制御手段は、成膜の際の基板温度を350℃以上に制御することを特徴とする請求項8に記載の成膜装置。
- 前記シリコン水素化物がジシラン(Si2H6)であることを特徴とする請求項7から請求項9のいずれか1項に記載の成膜装置。
- 前記温度制御手段は、成膜の際の基板温度を450℃以下に制御することを特徴とする請求項10に記載の成膜装置。
- 前記シャワーヘッドは、前記金属アルコキシド原料と前記シリコン水素化物とをそれぞれ独立に前記処理容器内に導入することを特徴とする請求項7から請求項11のいずれか1項に記載の成膜装置。
- 前記シャワーヘッドの温度を制御するシャワーヘッド温度制御手段をさらに具備することを特徴とする請求項7から請求項12のいずれか1項に記載の成膜装置。
- 前記シャワーヘッド温度制御手段は、前記シャワーヘッドを前記金属アルコキシド原料および前記シリコン水素化物の自己分解温度以下に制御することを特徴とする請求項13に記載の成膜装置。
- シリコン基板上にゲート絶縁膜を形成しその上にゲート電極を形成してなる半導体装置のゲート絶縁膜の形成方法であって、
シリコン基板上に、シリコン酸化膜または窒素を含有するシリコン酸化膜をベース絶縁膜として形成する第1工程と、
前記ベース絶縁膜上に金属シリケートからなる高誘電体膜を形成する第2工程とを含み、
前記第2工程を、請求項1から請求項6のいずれか1項に記載の成膜方法を用いて実行することを特徴とするゲート絶縁膜の形成方法。 - 前記ベース絶縁膜は、紫外線で励起された酸素ラジカルによってシリコン基板を酸化することにより形成することを特徴とする請求項15に記載のゲート絶縁膜の形成方法。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004105300A JP4542807B2 (ja) | 2004-03-31 | 2004-03-31 | 成膜方法および成膜装置、ならびにゲート絶縁膜の形成方法 |
| US10/593,254 US20070141257A1 (en) | 2004-03-31 | 2005-03-30 | Method and apparatus for forming metal silicate film, and method for manufacturing semiconductor device |
| KR1020067018780A KR100832929B1 (ko) | 2004-03-31 | 2005-03-30 | 금속 실리케이트막의 성막 방법 및 장치, 그리고 반도체장치의 제조 방법 |
| PCT/JP2005/006158 WO2005096362A1 (ja) | 2004-03-31 | 2005-03-30 | 金属シリケート膜の成膜方法および装置、並びに半導体装置の製造方法 |
| CNB2005800099355A CN100437937C (zh) | 2004-03-31 | 2005-03-30 | 金属硅酸盐膜的成膜方法及其装置、半导体装置的制造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004105300A JP4542807B2 (ja) | 2004-03-31 | 2004-03-31 | 成膜方法および成膜装置、ならびにゲート絶縁膜の形成方法 |
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| Publication Number | Publication Date |
|---|---|
| JP2005294421A JP2005294421A (ja) | 2005-10-20 |
| JP4542807B2 true JP4542807B2 (ja) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2004105300A Expired - Fee Related JP4542807B2 (ja) | 2004-03-31 | 2004-03-31 | 成膜方法および成膜装置、ならびにゲート絶縁膜の形成方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070141257A1 (ja) |
| JP (1) | JP4542807B2 (ja) |
| KR (1) | KR100832929B1 (ja) |
| CN (1) | CN100437937C (ja) |
| WO (1) | WO2005096362A1 (ja) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100731164B1 (ko) * | 2005-05-19 | 2007-06-20 | 주식회사 피에조닉스 | 샤워헤드를 구비한 화학기상 증착 방법 및 장치 |
| JPWO2007043709A1 (ja) * | 2005-10-14 | 2009-04-23 | 日本電気株式会社 | 半導体装置の製造方法およびその製造装置 |
| JP5106769B2 (ja) * | 2005-10-24 | 2012-12-26 | 東京エレクトロン株式会社 | 金属シリケート膜形成方法および半導体装置の製造方法、コンピュータ可読記録媒体 |
| US20070264427A1 (en) * | 2005-12-21 | 2007-11-15 | Asm Japan K.K. | Thin film formation by atomic layer growth and chemical vapor deposition |
| KR100744423B1 (ko) * | 2006-08-28 | 2007-07-30 | 동부일렉트로닉스 주식회사 | 하프늄 실리케이트 산화막 형성 방법 및 이를 이용한반도체 소자의 제조 방법 |
| US8152923B2 (en) | 2007-01-12 | 2012-04-10 | Veeco Instruments Inc. | Gas treatment systems |
| JP4968028B2 (ja) * | 2007-12-04 | 2012-07-04 | 株式会社明電舎 | レジスト除去装置 |
| US8017469B2 (en) * | 2009-01-21 | 2011-09-13 | Freescale Semiconductor, Inc. | Dual high-k oxides with sige channel |
| US9354508B2 (en) | 2013-03-12 | 2016-05-31 | Applied Materials, Inc. | Planarized extreme ultraviolet lithography blank, and manufacturing and lithography systems therefor |
| US9612521B2 (en) | 2013-03-12 | 2017-04-04 | Applied Materials, Inc. | Amorphous layer extreme ultraviolet lithography blank, and manufacturing and lithography systems therefor |
| US9632411B2 (en) * | 2013-03-14 | 2017-04-25 | Applied Materials, Inc. | Vapor deposition deposited photoresist, and manufacturing and lithography systems therefor |
| US9417515B2 (en) | 2013-03-14 | 2016-08-16 | Applied Materials, Inc. | Ultra-smooth layer ultraviolet lithography mirrors and blanks, and manufacturing and lithography systems therefor |
| US20140272684A1 (en) | 2013-03-12 | 2014-09-18 | Applied Materials, Inc. | Extreme ultraviolet lithography mask blank manufacturing system and method of operation therefor |
| KR101550775B1 (ko) * | 2013-05-31 | 2015-09-08 | 백용구 | 다층복합막 형성장치 및 이를 이용한 다층복합막 형성방법 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3624476B2 (ja) * | 1995-07-17 | 2005-03-02 | セイコーエプソン株式会社 | 半導体レーザ装置の製造方法 |
| US6161500A (en) * | 1997-09-30 | 2000-12-19 | Tokyo Electron Limited | Apparatus and method for preventing the premature mixture of reactant gases in CVD and PECVD reactions |
| US6984591B1 (en) * | 2000-04-20 | 2006-01-10 | International Business Machines Corporation | Precursor source mixtures |
| JP4731694B2 (ja) * | 2000-07-21 | 2011-07-27 | 東京エレクトロン株式会社 | 半導体装置の製造方法および基板処理装置 |
| JP4102072B2 (ja) * | 2002-01-08 | 2008-06-18 | 株式会社東芝 | 半導体装置 |
| JP4001498B2 (ja) * | 2002-03-29 | 2007-10-31 | 東京エレクトロン株式会社 | 絶縁膜の形成方法及び絶縁膜の形成システム |
| JP2004079687A (ja) * | 2002-08-13 | 2004-03-11 | Tokyo Electron Ltd | キャパシタ構造、成膜方法及び成膜装置 |
| US7070833B2 (en) * | 2003-03-05 | 2006-07-04 | Restek Corporation | Method for chemical vapor deposition of silicon on to substrates for use in corrosive and vacuum environments |
| JP2004311782A (ja) * | 2003-04-08 | 2004-11-04 | Tokyo Electron Ltd | 成膜方法及び成膜装置 |
-
2004
- 2004-03-31 JP JP2004105300A patent/JP4542807B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-30 KR KR1020067018780A patent/KR100832929B1/ko not_active Expired - Fee Related
- 2005-03-30 US US10/593,254 patent/US20070141257A1/en not_active Abandoned
- 2005-03-30 CN CNB2005800099355A patent/CN100437937C/zh not_active Expired - Fee Related
- 2005-03-30 WO PCT/JP2005/006158 patent/WO2005096362A1/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005096362A1 (ja) | 2005-10-13 |
| CN1938832A (zh) | 2007-03-28 |
| KR100832929B1 (ko) | 2008-05-27 |
| CN100437937C (zh) | 2008-11-26 |
| JP2005294421A (ja) | 2005-10-20 |
| US20070141257A1 (en) | 2007-06-21 |
| KR20060120282A (ko) | 2006-11-24 |
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