KR20220136149A - 중간 처리 공정으로 실리콘 질화물을 증착하기 위한 방법 및 시스템 - Google Patents
중간 처리 공정으로 실리콘 질화물을 증착하기 위한 방법 및 시스템 Download PDFInfo
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- KR20220136149A KR20220136149A KR1020220035471A KR20220035471A KR20220136149A KR 20220136149 A KR20220136149 A KR 20220136149A KR 1020220035471 A KR1020220035471 A KR 1020220035471A KR 20220035471 A KR20220035471 A KR 20220035471A KR 20220136149 A KR20220136149 A KR 20220136149A
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- C23C16/45536—Use of plasma, radiation or electromagnetic fields
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
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- C23C16/45534—Use of auxiliary reactants other than used for contributing to the composition of the main film, e.g. catalysts, activators or scavengers
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Abstract
Description
도 1은 본 개시의 적어도 하나의 구현예에 따른 방법을 나타낸다.
도 2는 본 개시의 구현예에 따라, 방법의 시간 순서를 나타낸다.
도 3은 본 개시의 예시에 따른 구조체를 나타낸다.
도 4는 본 개시의 적어도 일 구현예에 따른 시스템을 나타낸다.
도면의 구성 요소들은 간략하고 명료하게 도시되어 있으며, 반드시 축적대로 도시되지 않았음을 이해할 것이다. 예를 들어, 본 개시에서 예시된 구현예의 이해를 돕기 위해 도면 중 일부 구성 요소의 치수는 다른 구성 요소에 비해 과장될 수 있다.
Claims (18)
- 실리콘 질화물 층을 증착하는 방법으로서, 상기 방법은,
기판을 반응 챔버 내에 제공하는 단계;
실리콘 전구체 펄스 기간 동안에 실리콘 전구체를 상기 반응 챔버에 제공하는 단계;
질소 반응물 펄스 기간 동안에 질소 반응물을 상기 반응 챔버에 제공하는 단계;
증착 플라즈마 펄스 기간 동안에 상기 반응 챔버 내에 플라즈마를 형성하기 위해 증착 플라즈마 전력을 제공하는 단계;
수소 반응물 펄스 기간동안에 수소 반응물을 상기 반응 챔버에 제공하는 단계로서, 상기 질소 반응물 펄스 기간과 상기 수소 반응물 펄스 기간은 중첩 기간 동안에 중첩되는 단계;
상기 중첩 기간 동안에, 상기 반응 챔버에 제1 처리 플라즈마 전력을 제1 처리 플라즈마 펄스 기간 동안 제공하는 단계; 및
제2 처리 플라즈마 펄스 기간 동안에 제2 처리 플라즈마 전력을 상기 반응 챔버에 제공하는 단계를 포함하며,
상기 수소 반응물 펄스 기간과 상기 제2 처리 플라즈마 펄스 기간은 중첩되지 않는, 방법. - 제1항에 있어서, 상기 증착 플라즈마 전력은 상기 제2 처리 플라즈마 전력보다 큰, 방법.
- 제1항 또는 제2항에 있어서, 상기 증착 플라즈마 전력은 약 400 W 내지 약 1000 W인, 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 제2 처리 플라즈마 전력은 약 100 W 내지 약 1000 W인, 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 제1 처리 플라즈마 전력은 상기 제2 처리 플라즈마 전력보다 크거나 같은 방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 제1 처리 플라즈마 전력은 약 100 W 내지 약 1000 W인, 방법.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 질소 반응물은 질소(N2), N2O, NO, NF3로 이루어진 군으로부터 선택되는, 방법.
- 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 수소 반응물은 수소(H2), NH3, N2H4, N2H2로 이루어진 군으로부터 선택되는, 방법.
- 제1항 내지 제8항 중 어느 한 항에 있어서, 상기 질소 반응물은 하나 이상의 증착 사이클 동안 상기 반응 챔버에 연속적으로 공급되는, 방법.
- 제1항 내지 제9항 중 어느 한 항에 있어서, 상기 중첩 기간 동안 상기 수소 반응물 대 상기 질소 반응물의 부피 유량비는 약 0.0003:1 내지 약 0.1:1인, 방법.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 상기 방법 동안의 기판 온도는 약 25℃ 내지 약 700℃, 약 50℃ 내지 약 600℃, 약 100℃ 내지 약 500℃, 약 200℃ 내지 약 400℃, 또는 약 300℃ 내지 약 400℃인, 방법.
- 제1항 내지 제11항 중 어느 한 항에 있어서, 상기 방법 동안의 상기 반응 챔버 내 압력은 약 0.01 토르 내지 약 50 토르, 또는 약 0.1 토르 내지 약 30 토르인, 방법.
- 제1항 내지 제12항 중 어느 한 항에 있어서, 상기 실리콘 전구체는 실란, 할로겐실란, 유기실란 및 실라잔 중 하나 이상을 포함하는, 방법.
- 제1항 내지 제13항 중 어느 한 항에 있어서, 상기 실리콘 전구체는 트리스(디메틸아미노)실란, 비스(tert-부틸아미노)실란, 디(sec-부틸아미노)실란, 트리실릴아민, 네오펜타실란, 비스(디메틸아미노)실란, (디메틸아미노)실란(DMAS), 비스(디에틸아미노)실란(BDEAS), 비스(에틸메틸아미노)실란(BEMAS), 테트라키스(디메틸아미노)실란(TKDMAS), 트리메틸실란(SiH(CH3)3), 테트라메틸실란(Si(Ch3)4), 실란, 테트라(에톡시)실란(TEOS, Si(OC2H5)4), 트리스(tert-부톡시)실란올(TBOS), 트리스(tert-펜톡시)실란올(TPSOL),디메틸디클로로실란(Si(OC2H5)4,Si(CH3)2(OCH3)2) 및 할로실란, 예컨대 SiI4, HSiI3, H2SiI2, H3SiI, Si2I6, HSi2I5, H2Si2I4, H3Si2I3, H4Si2I2, H5Si2I, Si3I8, HSiCl3, H2SiCl2, H3SiCl, H2Si2Cl4, H4Si2Cl2, SiCl4, HSiCl3, 및 H2SiCl2 중 하나 이상을 포함하는, 방법.
- 제1항 내지 제14항 중 어느 한 항에 있어서, 상기 실리콘 질화물은 상기 기판의 표면 상의 하나 이상의 오목부(recess)의 측벽 상에 증착되는, 방법.
- 제15항에 있어서, 상기 오목부 내의 중간 측벽 표면에서 상기 실리콘 질화물의 습식 식각 속도 대 상기 기판의 상단 표면 상의 상기 실리콘 질화물의 습식 식각 속도의 비율은 15 미만, 10 미만, 또는 5 미만인, 방법.
- 제1항 내지 제16항 중 어느 한 항의 방법을 사용하여 형성된 구조체.
- 시스템으로서, 상기 시스템은
반응 챔버;
실리콘 전구체 공급원;
질소 반응물 공급원;
수소 반응물 공급원;
플라즈마 전원;
배기 공급원; 및
제어기를 포함하며,
상기 제어기는 실리콘 전구체, 질소 반응물, 및 수소 반응물의 상기 반응 챔버 내로의 가스 흐름을 제어하여 기판의 표면 상에 실리콘 질화물 층을 형성하고, 상기 질소 반응물과 상기 수소 반응물을 흐르게 하는 단계를 포함한 제1 공정을 사용하여 상기 실리콘 질화물 층을 처리하고, 상기 반응 챔버로 상기 수소 반응물을 흐르게 하는 단계를 포함하지 않는 제2 처리 공정을 사용하여 상기 실리콘 질화물 층을 추가로 처리하도록 구성되는, 시스템.
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| Application Number | Priority Date | Filing Date | Title |
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| US202163167786P | 2021-03-30 | 2021-03-30 | |
| US63/167,786 | 2021-03-30 |
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| KR20220136149A true KR20220136149A (ko) | 2022-10-07 |
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| KR1020220035471A Pending KR20220136149A (ko) | 2021-03-30 | 2022-03-22 | 중간 처리 공정으로 실리콘 질화물을 증착하기 위한 방법 및 시스템 |
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| US (1) | US20220319832A1 (ko) |
| KR (1) | KR20220136149A (ko) |
| CN (1) | CN115142043A (ko) |
| TW (1) | TW202242177A (ko) |
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| US20140273530A1 (en) * | 2013-03-15 | 2014-09-18 | Victor Nguyen | Post-Deposition Treatment Methods For Silicon Nitride |
| US9905415B2 (en) * | 2013-10-03 | 2018-02-27 | Versum Materials Us, Llc | Methods for depositing silicon nitride films |
| US9214333B1 (en) * | 2014-09-24 | 2015-12-15 | Lam Research Corporation | Methods and apparatuses for uniform reduction of the in-feature wet etch rate of a silicon nitride film formed by ALD |
| CN113403604B (zh) * | 2015-07-31 | 2024-06-14 | 弗萨姆材料美国有限责任公司 | 用于沉积氮化硅膜的组合物和方法 |
| US10410857B2 (en) * | 2015-08-24 | 2019-09-10 | Asm Ip Holding B.V. | Formation of SiN thin films |
| KR102188750B1 (ko) * | 2015-09-11 | 2020-12-08 | 버슘머트리얼즈 유에스, 엘엘씨 | 콘포말한 금속 또는 메탈로이드 실리콘 니트라이드 막을 증착시키는 방법 및 얻어진 막 |
| US10580645B2 (en) * | 2018-04-30 | 2020-03-03 | Asm Ip Holding B.V. | Plasma enhanced atomic layer deposition (PEALD) of SiN using silicon-hydrohalide precursors |
| US20200075325A1 (en) * | 2018-08-29 | 2020-03-05 | Asm Ip Holding B.V. | Film forming method |
| US10559458B1 (en) * | 2018-11-26 | 2020-02-11 | Asm Ip Holding B.V. | Method of forming oxynitride film |
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| TW202242177A (zh) | 2022-11-01 |
| US20220319832A1 (en) | 2022-10-06 |
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