KR20180069700A - 개선된 플라즈마 강화 원자층 성막 - Google Patents
개선된 플라즈마 강화 원자층 성막 Download PDFInfo
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- 238000000231 atomic layer deposition Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 194
- 238000000151 deposition Methods 0.000 claims abstract description 186
- 230000008569 process Effects 0.000 claims abstract description 163
- 230000008021 deposition Effects 0.000 claims abstract description 158
- 238000005137 deposition process Methods 0.000 claims abstract description 54
- 238000009832 plasma treatment Methods 0.000 claims abstract description 53
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000010926 purge Methods 0.000 claims description 68
- 239000000463 material Substances 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 239000010410 layer Substances 0.000 description 137
- 239000007789 gas Substances 0.000 description 33
- 239000002243 precursor Substances 0.000 description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000010408 film Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 9
- 229910052581 Si3N4 Inorganic materials 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 7
- 239000002356 single layer Substances 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000012805 post-processing Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000000427 thin-film deposition Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005389 semiconductor device fabrication Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
Description
도 1a 내지 도 1d는 여기에서 설명하는 원리의 일례에 따른 층 성막 사이클 내의 다양한 단계를 보여주는 다이어그램.
도 2a는 여기에서 설명하는 원리의 일례에 따른 플라즈마 처리 프로세스의 사용 시에 변하는 층 성막 사이클을 보여주는 흐름도.
도 2b는 여기에서 설명하는 원리의 일례에 따른 플라즈마 처리 프로세스의 사용 시에 변하는 층 성막 사이클 세트를 보여주는 흐름도.
도 3은 여기에서 설명하는 원리의 일례에 따른 플라즈마 처리 프로세스 시에 변하는 층 성막 사이클을 보여주는 흐름도.
도 4는 여기에서 설명하는 원리의 일례에 따른 플라즈마 처리 프로세스 시에 변하는 층 성막 사이클을 보여주는 다이어그램.
도 5는 여기에서 설명하는 원리의 일례에 따른 플라즈마 처리 프로세스 시에 변하는 층 성막 사이클을 보여주는 다이어그램.
도 6은 여기에서 설명하는 원리의 일례에 따른, 사이클이 변하는 PEALD 프로세스를 수행하는 예시적인 시스템을 보여주는 다이어그램.
Claims (10)
- 방법으로서,
기판에 대해 성막 프로세스의 제1의 복수의 층 성막 사이클을 수행하는 단계; 및
제1의 복수의 층 성막 사이클을 수행한 후, 플라즈마 처리 프로세스를 포함하는 플라즈마 강화 층 성막 사이클을 수행하는 단계
를 포함하고, 제1의 복수의 층 성막 사이클은 플라즈마 처리 프로세스 없이 수행되는 것인 방법. - 제1항에 있어서, 플라즈마 강화 층 성막 사이클을 수행한 후, 제2의 복수의 층 성막 사이클을 수행하는 단계를 더 포함하며, 제2의 복수의 층 성막 사이클은 플라즈마 처리 프로세스 없이 수행되는 것인 방법.
- 제1항에 있어서, 제1의 복수의 층 성막 사이클은 20회 내지 80회 범위 내의 사이클 횟수를 포함하는 것인 방법.
- 제1항에 있어서, 제1의 복수의 층 성막 사이클은 두께가 1 내지 4 나노미터 범위 내인 필름을 형성하는 것인 방법.
- 제1항에 있어서, 성막 프로세스의 층 성막 사이클의 총 횟수 대 성막 프로세스의 플라즈마 강화 층 성막 사이클의 총 횟수의 비는 20:1 내 5:1 범위 내인 것인 방법.
- 제1항에 있어서, 제1의 복수의 층 성막 사이클 중 하나는
기판 상에 재료를 성막하는 단계; 및
챔버 퍼지 프로세스를 수행하는 단계
를 포함하는 것인 방법. - 성막 프로세스의 수행 방법으로서,
기판에 대해, 제1의 복수의 플라즈마 강화 원자층 성막(Plasma Enhanced Atomic Layer Deposition; PEALD) 사이클을 수행하는 단계로서, 제1의 복수의 플라즈마 강화 원자층 성막 사이클은 제1 기간 동안 퍼지 프로세스를 수행하는 단계를 포함하는, 제1의 복수의 플라즈마 강화 원자층 성막(PEALD) 사이클을 수행하는 단계; 및
제1의 복수의 플라즈마 강화 원자층 성막 사이클을 수행한 후, 전하 경감 층 성막 사이클을 수행하는 단계로서,
플라즈마 처리 프로세스를 수행하는 단계; 및
제1 기간보다 긴 제2 기간 동안 플라즈마 처리후 퍼지 프로세스를 수행하는 단계
를 포함하는, 전하 경감 층 성막 사이클을 수행하는 단계
를 포함하는 성막 프로세스의 수행 방법. - 시스템으로서,
플라즈마 강화 원자층 성막(PEALD) 제조 툴; 및
PEALD 제조 툴과 통신하는 제어 시스템
을 포함하고, 제어 시스템은
프로세서; 및
기계 판독 가능한 명령을 갖는 메모리
를 포함하며, 상기 명령은 프로세서에 의해 실행될 때에 PEALD 제조 툴이,
기판에 대해, 제1의 복수의 플라즈마 강화 원자층 성막(PEALD) 사이클을 수행하게 하고,
제1의 복수의 플라즈마 강화 원자층 성막 사이클을 수행한 후, 플라즈마 처리 프로세스를 포함하는 플라즈마 강화 층 성막 사이클을 수행하게 하며,
제1의 복수의 플라즈마 강화 원자층 성막 사이클은 플라즈마 처리 프로세스 없이 수행되는 것인 시스템. - 제8항에 있어서, 제1의 복수의 플라즈마 강화 원자층 성막 사이클 각각에 대해, 제어 시스템은 또한 제조 툴이,
기판 상에 재료를 성막하게 하고,
퍼지 프로세스를 수행하게 하는 것인 시스템. - 제9항에 있어서, 제조 툴은 특정 횟수의 층 성막 사이클 후에 연장된 퍼지 프로세스 시간으로 사이클을 더 수행하는 것인 시스템.
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US15/433,739 US10153156B2 (en) | 2016-12-15 | 2017-02-15 | Plasma enhanced atomic layer deposition |
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US9824881B2 (en) * | 2013-03-14 | 2017-11-21 | Asm Ip Holding B.V. | Si precursors for deposition of SiN at low temperatures |
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