KR101123442B1 - 반도체 장치의 제조 방법, 반도체 장치, 플라즈마 질화처리 방법, 제어 프로그램 및 컴퓨터 기억 매체 - Google Patents
반도체 장치의 제조 방법, 반도체 장치, 플라즈마 질화처리 방법, 제어 프로그램 및 컴퓨터 기억 매체 Download PDFInfo
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- KR101123442B1 KR101123442B1 KR1020077023295A KR20077023295A KR101123442B1 KR 101123442 B1 KR101123442 B1 KR 101123442B1 KR 1020077023295 A KR1020077023295 A KR 1020077023295A KR 20077023295 A KR20077023295 A KR 20077023295A KR 101123442 B1 KR101123442 B1 KR 101123442B1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/0223—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate
- H01L21/02233—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer
- H01L21/02236—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor
- H01L21/02238—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor silicon in uncombined form, i.e. pure silicon
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- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
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- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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Abstract
Description
Claims (34)
- 반도체 장치의 제조 방법으로서,피처리 기판이 적어도 실리콘층을 포함하고,챔버 내에서 상기 실리콘층의 표면에 대하여, 복수의 슬롯을 갖는 평면 안테나에 의해 상기 챔버 내에 마이크로파를 도입하여 Ar 가스와 N2 가스의 플라즈마를 발생시키고, 이 플라즈마에 의해, 상기 실리콘층의 표면을 플라즈마 질화 처리하여 산화 배리어층으로서의 질화 영역을 형성하는 질화 영역 형성 공정과,상기 질화 영역 상에 절연막을 형성하는 공정을 구비한 것을 특징으로 하는 반도체 장치의 제조 방법.
- 삭제
- 제 1 항에 있어서,상기 실리콘층이 폴리실리콘으로 이루어지고, 상기 질화 영역 형성 공정을 10초 이상 실행하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제 3 항에 있어서,상기 질화 영역 형성 공정을 30초 이상 실행하는 것을 특징으로 하는반도체 장치의 제조 방법.
- 삭제
- 제 1 항에 있어서,상기 절연막에 질화막과 산화막을 순차적으로 형성하는 공정을 더 포함하는 반도체 장치의 제조 방법.
- 제 6 항에 있어서,상기 산화막의 표면은 평면 안테나를 사용하여 N2를 포함하는 가스의 플라즈마에 의해서 질화하는 공정을 더 포함하는 반도체 장치의 제조 방법.
- 삭제
- 삭제
- 청구항 1, 3, 4, 6, 7 중 어느 한 청구항에 기재된 반도체 장치 제조 방법에 의해 제조된 반도체 장치.
- 삭제
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- 삭제
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- 제 1 항에 있어서,상기 질화 영역의 두께는 0.1nm 이상인 것을 특징으로 하는반도체 장치의 제조 방법.
- 제 1 항에 있어서,상기 질화 영역과 상기 절연막의 계면에 있어서의 증가막의 두께는 0.3nm 이하인 것을 특징으로 하는 반도체 장치의 제조 방법.
- 삭제
- 반도체 장치의 제조 방법으로서,피처리 기판 상에 터널 산화막을 형성하는 공정과,상기 터널 산화막 상에 제 1 폴리실리콘층을 형성하는 공정과,상기 폴리실리콘층 상에 CVD 산화막을 형성하는 공정과,상기 CVD 산화막에 질화막을 형성하는 공정과,상기 질화막 상에 산화막을 형성하는 공정과,상기 산화막 상에 제 2 폴리실리콘층을 형성하는 공정과,상기 제 2 폴리실리콘층 상에 절연막을 형성하는 공정을 구비하고,챔버 내에서 상기 피처리 기판 상의 상기 제 1 폴리실리콘층의 표면에 대하여, Ar 가스와 N2 가스의 플라즈마를 발생시키고, 이 플라즈마에 의해, 상기 제 1 폴리실리콘층의 표면을 플라즈마 질화 처리하여 산화 배리어층으로서의 제 1 질화 영역을 형성하는 공정을 더 포함하고,상기 제 1 질화 영역 상에 상기 CVD 산화막이 형성되는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 청구항 24에 기재된 방법에 의해 제조된 비휘발성 메모리 소자.
- 반도체 장치의 제조 방법으로서,피처리 기판이 적어도 실리콘층을 포함하고,챔버 내에서 상기 실리콘층의 표면에 대하여, Ar 가스와 N2 가스의 플라즈마를 발생시키고, 이 플라즈마에 의해, 상기 실리콘층의 표면을 플라즈마 질화 처리하여 질화 영역을 형성하는 질화 영역 형성 공정과,상기 질화 영역 상에 절연막을 형성하는 공정을 구비한 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제 1, 24, 26 항 중 어느 한 항에 있어서,상기 질화 영역 형성 공정은, 상기 플라즈마 질화 처리의 압력을 1.33Pa~399Pa로, 처리 온도를 100℃~600℃로, Ar 가스와 N2 가스의 유량비를 Ar/N2=1.0~300으로 설정하여 행해지는 반도체 장치의 제조 방법.
- 제 1 항 또는 제 24 항에 있어서,상기 질화 영역 형성 공정은,상기 챔버 내에 상기 Ar 가스를 도입하여, 상기 챔버 내의 압력을 상기 플라즈마 질화 처리시의 압력보다 높게 하여 상기 플라즈마를 착화하는 공정과,상기 플라즈마 착화한 후, 상기 챔버 내에 N2 가스를 도입하여, N2 가스를 플라즈마화하는 공정을 갖는 반도체 장치의 제조 방법.
- 제 1 항 또는 제 24 항에 있어서,상기 플라즈마는, 복수의 슬롯을 갖는 평면 안테나에 의해 상기 챔버 내에 마이크로파를 도입하여 생성되는 반도체 장치의 제조 방법.
- 제 24 항에 있어서,상기 산화막 표면을 Ar 가스와 N2 가스의 플라즈마에 의해 질화 처리하여 제 2 질화 영역을 형성하는 공정을 더 갖는 반도체 장치의 제조 방법.
- 제 30 항에 있어서,상기 제 2 질화 영역 형성 공정은,상기 챔버 내에 상기 Ar 가스를 도입하여, 상기 피처리 기판을 예비 가열하는 공정과,상기 챔버 내에 N2 가스를 공급함과 아울러, 상기 Ar 가스의 유량을 서서히 소정의 유량으로 감소시키고, 또한, 상기 챔버 내의 압력을 상기 플라즈마 질화 처리보다 높은 압력으로 하는 가스 및 압력 안정화 공정과,상기 플라즈마 질화 처리보다 높은 파워로 상기 플라즈마를 점화하는 공정과,상기 플라즈마 점화시보다 낮은 소정 압력 및 파워로 하여, 상기 플라즈마 질화 처리하는 공정을 갖는 반도체 장치의 제조 방법.
- 제 30 항 또는 제 31 항에 있어서,상기 제 2 질화 영역 형성 공정의 상기 플라즈마는, 상기 질화 처리시의 압력을 133Pa 이하로, 처리 온도를 200℃~600℃로, Ar 가스와 N2 가스의 유량비를 Ar/N2=1~50으로 설정하여 생성되는 반도체 장치의 제조 방법.
- 제 30 항에 있어서,상기 질화 처리 시간은 60초 이상인 반도체 장치의 제조 방법.
- 제 24 항 또는 제 30 항에 있어서,에칭 공정에 의해 상기 제 1 및 제 2 폴리실리콘층의 측벽부를 노출시키는 공정과,상기 측벽부를 열처리에 의해서 산화막을 형성하는 열산화막 형성 공정을 더 갖는 반도체 장치의 제조 방법.
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