KR20060091006A - 플라즈마 cvd를 이용한 성막 방법 및 장치 - Google Patents
플라즈마 cvd를 이용한 성막 방법 및 장치 Download PDFInfo
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Abstract
Description
Claims (27)
- 플라즈마 CVD에 의해 피처리 기판상에 Ti 박막을 형성하는 성막 방법에 있어서,TiCl4 가스 및 H2 가스인 처리 가스를 도입하면서 제 1 플라즈마를 생성시켜, 기판상에 Ti 박막을 형성하는 제 1 단계, 및상기 Ti 박막상에 H2 가스인 처리 가스를 도입하면서 제 2 플라즈마를 생성시키고, 이 제 2 플라즈마에 의해 상기 Ti 박막을 처리하는 제 2 단계를 교대로 복수회 반복하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 1 단계 및 상기 제 2 단계를 적어도 1회 이상 반복한 후, 상기 H2 가스 및 NH3 가스를 도입하면서 제 3 플라즈마를 생성시키고, 질화 처리를 하는 것을 특징으로 하는 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 제 1 단계 및 상기 제 2 단계 후, 퍼지 가스를 도입하는 공정을 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 1 단계 및 상기 제 2 단계를 적어도 1회 이상 반복한 후, NH3 가스와 N2 가스 및 H2 가스 중 적어도 하나를 포함하는 가스를 도입하면서 제 3 플라즈마를 생성시키고, 질화 처리를 하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 2 단계의 시간을 상기 제 1 단계의 시간보다 길게 하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 1 단계에서, 상기 처리 가스로 Ar 가스를 포함하고, 상기 TiCl4 가스의 유량을 1~30sccm, H2 가스의 유량을 500~5000sccm, 상기 Ar 가스의 유량을 300~3000sccm으로 하는 것을 특징으로 하는 방법.
- 제 1 항 또는 제 6 항에 있어서,상기 제 2 단계에서, 상기 처리 가스로 Ar 가스를 포함하고, 상기 H2 가스의 유량을 500~5000sccm, 상기 Ar 가스의 유량을 300~3000sccm으로 하는 것을 특징으로 하는 방법.
- 제 2 항에 있어서,상기 제 3 플라즈마가 Ar 가스를 포함하고, 상기 NH3 가스의 유량을 500~2000sccm, 상기 H2 가스의 유량을 500~5000sccm, 상기 Ar 가스의 유량을 300~3000sccm으로 하는 것을 특징으로 하는 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 Ti 박막의 형성 압력을 66.6~1333Pa로 수행하는 것을 특징으로 하는 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 플라즈마가 고주파 전력에 의해 생성되고, 이 고주파 전력이 200~2000W인 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 1 단계 및 상기 제 2 단계의 시간이 1~20초인 것을 특징으로 하는 방법.
- 처리 챔버내에서 피처리 기판에 CVD에 의해 Ti 또는 Ti/TiN막을 형성하는 성막 방법에 있어서,TiCl4 가스 및 H2 가스를 도입하면서 제 1 플라즈마를 생성하여, 상기 기판상에 Ti 막을 형성하는 제 1 단계, 및TiCl4 가스를 정지시키고, 상기 H2 가스, N2 가스 및 NH3 가스 중 적어도 하나를 포함하는 가스를 도입시키면서 제 2 플라즈마를 생성하는 제 2 단계를 교대로 복수회 반복하는 것을 특징으로 하는 방법.
- 제 12 항에 있어서,상기 제 1 단계 및 상기 제 2 단계 후에, 퍼지 가스를 도입하는 공정을 포함하는 것을 특징으로 하는 방법.
- 제 12 항에 있어서,상기 제 2 단계의 시간을 상기 제 1 단계의 시간 이상으로 하는 것을 특징으로 하는 방법.
- 처리 챔버내에서 피처리 기판에 CVD에 의해 Ti/TiN막을 성막하는 성막 방법에 있어서,TiCl4 가스 및 H2 가스를 도입하면서 제 1 플라즈마를 생성하는 제 1 단계, 및상기 H2 가스를 도입하면서 제 2 플라즈마를 생성하는 제 2 단계를 교대로 적어도 1회 이상 반복하는 것에 의해 Ti막을 형성하고,상기 제 2 단계 후에, NH3 가스와 N2 가스 및 H2 가스 중 적어도 하나를 포함하는 가스를 도입하면서 제 3 플라즈마를 생성시키고, 질화 처리하는 제 3 단계, 및상기 제 3 단계 후에 CVD에 의해 TiN막을 형성하는 제 4 단계를 포함하는 것을 특징으로 하는 방법.
- 제 15 항에 있어서,상기 제 1, 제 2 및 제 3 단계는 동일 챔버에서, 상기 제 4 단계는 별도의 챔버에서 진공으로 수행하는 것을 특징으로 하는 방법.
- 제 15 항에 있어서,상기 제 2 단계의 시간을 상기 제 1 단계의 시간보다 길게 하는 것을 특징으로 하는 방법.
- 제 15 항에 있어서,상기 제 1 단계와 상기 제 2 단계의 사이에 퍼지 가스를 도입하는 것을 특징으로 하는 방법.
- 제 15 항에 있어서,상기 제 4 단계 후에, N2 가스 및 NH3 가스에 의해 상기 TiN막을 질화 처리하는 공정을 포함하는 것을 특징으로 하는 방법.
- 제 1 항, 제 12 항 또는 제 15 항 중 어느 한 항에 있어서,상기 피처리 기판 상에 NiSi 또는 CoSi막을 형성하고, 상기 Ti막이 상기 NiSi막 상에 형성되는 것을 특징으로 하는 방법.
- 제 1 항, 제 12 항, 제 15 항 또는 제 20 항 중 어느 한 항에 있어서,상기 Ti막의 성막에 앞서, 베이스 표면의 자연 산화막을 제거하는 공정을 포함하는 것을 특징으로 하는 방법.
- 제 21 항에 있어서,상기 자연 산화막 제거 공정이 Ar, Ne, He 가스 중 어느 하나와 N2 가스, NF3 가스 중 어느 하나의 조합 또는 Ar 가스 단독의 플라즈마를 고주파 전력에 의해 제거하는 것을 특징으로 하는 방법.
- 성막 시스템에 있어서,기판을 수납하는 후프,적어도 하나의 Ti막을 형성하는 Ti막 성막 장치,적어도 하나의 TiN막을 형성하는 TiN막 성막 장치,상기 Ti막 성막 장치, 상기 TiN막 성막 장치를 게이트 밸브를 통해 접속시켜, 상기 성막 장치 내로 기판을 반송하는 진공 반송실, 및상기 진공 반송실에 게이트 밸브를 통해 접속시켜, 상기 후프로부터 상기 기판을 상기 성막 장치에 I/O(인/아웃)하기 위한 로드락실을 구비하고,상기 Ti막 성막 장치가 상기 Ti막 형성에 있어, TiCl4 가스 및 H2 가스인 처리 가스를 도입하면서 제 1 플라즈마를 생성하고, 상기 기판상에 상기 Ti 박막을 형성하는 제 1 단계, 및상기 Ti 박막상에 H2 가스인 처리 가스를 도입하면서 제 2 플라즈마를 생성하고, 상기 플라즈마에 의해, 상기 Ti 박막을 처리하는 제 2 단계를 적어도 1회 이상 교대로 반복하고,상기 플라즈마가 고주파 전력에 의해 생성되고, 플라즈마 임피던스와 전송로 임피던스의 정합을 전자 정합식 매칭 네트워크에 의해 제어하는 제어부를 포함하는 것을 특징으로 하는 시스템.
- 제 23 항에 있어서,상기 성막 시스템이 상기 기판상에 상기 Ti막을 성막하기에 앞서, 베이스 표면의 자연 산화막을 제거하기 위한 프리클리닝 장치를 적어도 하나 구비하는 것을 특징으로 하는 시스템.
- 성막 시스템에 있어서,기판을 수납하는 후프,적어도 하나의 Ti막을 형성하는 Ti막 성막 장치,적어도 하나의 TiN막을 형성하는 TiN막 성막 장치,상기 Ti막 성막 장치, 상기 TiN막 성막 장치를 게이트 밸브를 통해 접속시켜, 상기 성막 장치내로 기판을 반송하는 진공 반송실, 및상기 진공 반송실에 게이트 밸브를 통해 접속되고, 상기 후프로부터 상기 기판을 상기 성막 장치에 I/O(인/아웃)하기 위한 로드락실을 구비하고,상기 Ti막 성막 장치가 챔버, 이 챔버내에 배치되고 상기 기판을 탑재하는 탑재대 및 상기 탑재대에 대향하여 설치된 가스 토출부를 포함하고,상기 탑재대 및 상기 가스 토출 부재를 서로 독립적으로 가열 가능하게 하고, 상기 탑재대를 가열하여 피처리 기판의 온도를 300~700℃로 제어하고, 상기 가스 토출 부재를 가열하여 그 온도를 450℃ 이상으로 제어하고,상기 가스 토출부로부터 TiCl4 가스 및 H2 가스를 토출시킴과 동시에, 챔버내에 플라즈마를 생성시켜, 피처리 기판상에 플라즈마 CVD에 의해 Ti막을 형성하는 것을 특징으로 하는 시스템.
- 제 25 항에 있어서,상기 탑재대를 가열하여 피처리 기판의 온도를 300℃ 이상, 550℃ 미만으로 제어하는 것을 특징으로 하는 시스템.
- 제 25 항에 있어서,상기 성막 시스템이 상기 기판상에 상기 Ti막을 성막하기에 앞서, 베이스 표면의 자연 산화막을 제거하기 위한 프리클리닝 장치를 적어도 하나 구비하는 것을 특징으로 하는 시스템.
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- 2003-12-04 WO PCT/JP2003/015561 patent/WO2004050948A1/ja active Application Filing
- 2003-12-04 TW TW092134459A patent/TW200416296A/zh not_active IP Right Cessation
- 2003-12-04 KR KR1020077016175A patent/KR100788060B1/ko active IP Right Grant
- 2003-12-04 EP EP03777264A patent/EP1591559A4/en not_active Withdrawn
- 2003-12-04 KR KR1020047017827A patent/KR100674732B1/ko active IP Right Grant
- 2003-12-04 KR KR1020067014884A patent/KR100788061B1/ko active IP Right Grant
-
2005
- 2005-06-03 US US11/143,718 patent/US20050233093A1/en not_active Abandoned
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180018385A (ko) * | 2016-08-12 | 2018-02-21 | 도쿄엘렉트론가부시키가이샤 | 성막 장치, 및 그것에 이용하는 가스 토출 부재 |
US11069512B2 (en) | 2016-08-12 | 2021-07-20 | Tokyo Electron Limited | Film forming apparatus and gas injection member used therefor |
Also Published As
Publication number | Publication date |
---|---|
KR100788060B1 (ko) | 2007-12-21 |
JP3574651B2 (ja) | 2004-10-06 |
US20100240216A1 (en) | 2010-09-23 |
EP1591559A4 (en) | 2011-05-25 |
US20050233093A1 (en) | 2005-10-20 |
TWI347981B (ko) | 2011-09-01 |
KR100674732B1 (ko) | 2007-01-25 |
JP2004232080A (ja) | 2004-08-19 |
KR20070087084A (ko) | 2007-08-27 |
TW200416296A (en) | 2004-09-01 |
CN1777694A (zh) | 2006-05-24 |
EP1591559A1 (en) | 2005-11-02 |
KR20040108778A (ko) | 2004-12-24 |
KR100788061B1 (ko) | 2007-12-21 |
WO2004050948A1 (ja) | 2004-06-17 |
CN1777694B (zh) | 2010-05-12 |
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