KR102652331B1 - 선택적 원자 층 증착 방법들 - Google Patents
선택적 원자 층 증착 방법들 Download PDFInfo
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- KR102652331B1 KR102652331B1 KR1020237010119A KR20237010119A KR102652331B1 KR 102652331 B1 KR102652331 B1 KR 102652331B1 KR 1020237010119 A KR1020237010119 A KR 1020237010119A KR 20237010119 A KR20237010119 A KR 20237010119A KR 102652331 B1 KR102652331 B1 KR 102652331B1
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Abstract
Description
도 1은 본 개시내용의 하나 이상의 실시예에 따른 처리 방법을 예시하고;
도 2는 본 개시내용의 하나 이상의 실시예에 따른 처리 방법을 예시한다.
Claims (20)
- 선택적 증착 방법으로서,
제1 표면 및 제2 표면을 갖는 기판을 제공하는 단계;
상기 제2 표면에 대해 상기 제1 표면의 적어도 일부 상에 차단 층을 선택적으로 형성하기 위해 상기 기판을 차단 화합물에 노출시키는 단계; 및
상기 차단 층 또는 상기 제1 표면에 대해 상기 제2 표면 상에 금속 산화물 층을 선택적으로 형성하기 위해 상기 기판을 금속 전구체 및 산소화제(oxygenating agent)에 순차적으로 노출시키는 단계를 포함하고, 상기 산소화제는 15.7 이상의 pKa를 갖는, 선택적 증착 방법. - 제1항에 있어서,
상기 제1 표면은 유전체 물질을 포함하고, 상기 제2 표면은 전도성 물질 또는 규소를 포함하는, 선택적 증착 방법. - 제2항에 있어서,
상기 제2 표면은 본질적으로 규소로 구성되는, 선택적 증착 방법. - 제1항에 있어서,
상기 차단 화합물은 n-옥타데실트리스(디메틸아미노)실란을 포함하는, 선택적 증착 방법. - 제1항에 있어서,
상기 금속 전구체가 Al, Hf, Zr, Y, Ti, Ta, Si, Cu, Co, W 또는 Ru로부터 선택된 금속을 포함하는, 선택적 증착 방법. - 제5항에 있어서,
상기 금속 전구체가 하프늄을 포함하는, 선택적 증착 방법. - 제1항에 있어서,
상기 산소화제가 알콜을 포함하는, 선택적 증착 방법. - 제7항에 있어서,
상기 산소화제가 화학식 R-OH의 종을 포함하며, 여기서 R은 1 내지 8개의 탄소를 포함하는 알킬 또는 시클로알킬 기인, 선택적 증착 방법. - 제8항에 있어서,
상기 산소화제가 메탄올, 에탄올, 프로판올, 이소프로판올, 부탄올, sec-부탄올 또는 t-부탄올 중 하나 이상을 포함하는, 선택적 증착 방법. - 제9항에 있어서,
상기 산소화제가 본질적으로 t-부탄올로 구성되는, 선택적 증착 방법. - 제1항에 있어서,
상기 산소화제가 물, 산소(O2) 또는 오존을 실질적으로 포함하지 않는, 선택적 증착 방법. - 선택적 증착 방법으로서,
제1 표면 및 제2 표면을 갖는 기판을 제공하는 단계;
상기 제2 표면에 대해 상기 제1 표면의 적어도 일부 상에 차단 층을 선택적으로 형성하기 위해 상기 기판을 차단 화합물에 노출시키는 단계;
상기 차단 층 또는 상기 제1 표면에 대해 상기 제2 표면 상에 금속 산화물 층을 선택적으로 형성하기 위해 상기 기판을 금속 전구체 및 산소화제에 순차적으로 노출시키는 단계 - 상기 산소화제는 15.7 이상의 pKa를 갖고, 상기 금속 산화물 층은 하프늄 산화물을 포함함 -; 및
상기 차단 층 상에 실질적인 증착 없이 미리 결정된 두께의 금속 산화물이 형성될 때까지 상기 기판에 대한 상기 순차적 노출을 반복하는 단계를 포함하고, 상기 미리 결정된 두께는 60 Å 이상인, 선택적 증착 방법. - 금속 산화물의 선택적 증착을 개선하는 방법으로서, 상기 방법은:
제1 노출된 물질 및 제2 노출된 물질을 둘 다 갖는 제1 패터닝된 기판 및 제2 패터닝된 기판을 제공하는 단계 - 상기 제1 노출된 물질은 유전체 물질을 포함하고, 상기 제2 노출된 물질은 전도성 물질 또는 규소를 포함함 -;
상기 제2 노출된 물질의 표면에 대해 상기 제1 노출된 물질의 표면의 적어도 일부 상에 차단 층을 선택적으로 형성하기 위해 상기 기판들을 차단 화합물에 노출시키는 단계;
상기 차단 층에 대해 상기 제2 노출된 물질의 표면 상에 금속 산화물 층을 선택적으로 형성하기 위해 상기 기판들을 금속 전구체 및 산소화제에 순차적으로 노출시키는 단계; 및
상기 차단 층들 상에 증착이 관찰될 때까지 다수의 주기 동안 상기 순차적 노출들을 반복하는 단계를 포함하고,
상기 제1 패터닝된 기판은 제1 횟수의 주기 동안 제1 산소화제에 노출되고, 상기 제2 패터닝된 기판은 제2 횟수의 주기 동안 제2 산소화제에 노출되며, 주기의 상기 제1 횟수는 주기의 상기 제2 횟수보다 적고, 상기 제1 산소화제는 물, 산소 또는 오존을 포함하고, 상기 제2 산소화제는 물의 pKa보다 큰 pKa를 갖는, 금속 산화물의 선택적 증착을 개선하는 방법. - 제13항에 있어서,
상기 차단 화합물은 n-옥타데실트리스(디메틸아미노)실란을 포함하는, 금속 산화물의 선택적 증착을 개선하는 방법. - 제13항에 있어서,
상기 금속 전구체가 Al, Hf, Zr, Y, Ti, Ta, Si, Cu, Co, W 또는 Ru로부터 선택된 금속을 포함하는, 금속 산화물의 선택적 증착을 개선하는 방법. - 제13항에 있어서,
상기 제2 산소화제가 알콜을 포함하는, 금속 산화물의 선택적 증착을 개선하는 방법. - 제16항에 있어서,
상기 제2 산소화제가 화학식 R-OH의 종을 포함하며, 여기서 R은 1 내지 8개의 탄소를 포함하는 알킬 또는 시클로알킬 기인, 금속 산화물의 선택적 증착을 개선하는 방법. - 제17항에 있어서,
상기 제2 산소화제가 메탄올, 에탄올, 프로판올, 이소프로판올, 부탄올, sec-부탄올 또는 t-부탄올 중 하나 이상을 포함하는, 금속 산화물의 선택적 증착을 개선하는 방법. - 제18항에 있어서,
상기 제2 산소화제가 본질적으로 t-부탄올로 이루어지는, 금속 산화물의 선택적 증착을 개선하는 방법. - 제13항에 있어서,
상기 금속 산화물 층이 하프늄 산화물을 포함하고, 60 Å 이상의 두께로 상기 제2 패터닝된 기판 상에 증착되는, 금속 산화물의 선택적 증착을 개선하는 방법.
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JP2017041632A (ja) | 2015-08-05 | 2017-02-23 | エーエスエム アイピー ホールディング ビー.ブイ. | アルミニウム及び窒素を含む材料の選択的堆積 |
JP2017222928A (ja) | 2016-05-31 | 2017-12-21 | 東京エレクトロン株式会社 | 表面処理による選択的堆積 |
JP2018011057A (ja) | 2016-07-11 | 2018-01-18 | 東京エレクトロン株式会社 | 周期的処理を使用した選択的膜堆積のための方法及び装置 |
JP2018046279A (ja) | 2016-09-13 | 2018-03-22 | 東京エレクトロン株式会社 | セルフアセンブル単層表面前処理を用いた選択的金属酸化物堆積 |
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US20250230545A1 (en) | 2025-07-17 |
TW201943881A (zh) | 2019-11-16 |
US20240052487A1 (en) | 2024-02-15 |
US20210189562A1 (en) | 2021-06-24 |
TWI879732B (zh) | 2025-04-11 |
US12291779B2 (en) | 2025-05-06 |
JP2022091739A (ja) | 2022-06-21 |
US11821085B2 (en) | 2023-11-21 |
JP7019837B2 (ja) | 2022-02-15 |
WO2019200234A1 (en) | 2019-10-17 |
KR20200132998A (ko) | 2020-11-25 |
KR102515131B1 (ko) | 2023-03-29 |
US20190316256A1 (en) | 2019-10-17 |
JP7290760B2 (ja) | 2023-06-13 |
KR20230048444A (ko) | 2023-04-11 |
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