KR20100035140A - 고애스펙트비 구조의 식각시 마이크로로딩의 감소 방법 - Google Patents
고애스펙트비 구조의 식각시 마이크로로딩의 감소 방법 Download PDFInfo
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- KR20100035140A KR20100035140A KR1020097027614A KR20097027614A KR20100035140A KR 20100035140 A KR20100035140 A KR 20100035140A KR 1020097027614 A KR1020097027614 A KR 1020097027614A KR 20097027614 A KR20097027614 A KR 20097027614A KR 20100035140 A KR20100035140 A KR 20100035140A
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
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- H—ELECTRICITY
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
- H01L21/32137—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas of silicon-containing layers
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Abstract
Description
Claims (20)
- 도전층에 상이한 애스펙트비의 피쳐를 식각하는 방법으로서,상기 도전층 상부에 애스펙트비 종속 증착물을 증착하는 단계;상기 도전층의 애스펙트비 종속 식각에 의해 상기 도전층에 피쳐를 식각하는 단계; 및상기 증착 단계 및 상기 식각 단계를 적어도 1회 반복하는 단계를 포함하는, 피쳐 식각 방법.
- 제 1 항에 있어서,상기 증착 단계는 선택적으로 상기 피쳐의 측벽 및 더 좁은 피쳐 (narrower features) 의 버텀보다 더 넓은 피쳐 (wider features) 의 버텀 상에 보다 많이 증착하는, 피쳐 식각 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 식각 단계는 선택적으로 더 좁은 피쳐보다 더 넓은 피쳐를 더 빨리 식각하는, 피쳐 식각 방법.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,상기 식각 단계는 상기 애스펙트비 종속 증착물을 제거하고,상기 애스펙트비 종속 증착물의 식각은 더 넓은 피쳐보다 먼저 더 좁은 피쳐에서 종료하는, 피쳐 식각 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 도전층의 식각은 더 넓은 피쳐보다 먼저 더 좁은 피쳐 상에서 시작하는, 피쳐 식각 방법.
- 제 1 항 내지 제 5 항 중 어느 한 항에 있어서,상기 증착 단계는, 상기 피쳐가 상당히 좁아지기 이전에 정지되는, 피쳐 식각 방법.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,상기 증착 단계는 실리콘 산화물 또는 수소화불화탄소계 증착물을 증착하는, 피쳐 식각 방법.
- 제 1 항 내지 제 7 항 중 어느 한 항에 있어서,상기 도전층은 텅스텐 (W), 텅스텐 실리사이드 (WSi2), 및 알루미늄 (Al) 으로 이루어지는 그룹에서 선택된 하나인, 피쳐 식각 방법.
- 제 1 항 내지 제 8 항 중 어느 한 항에 있어서,상기 피쳐의 애스펙트비는 7:1 을 초과하는, 피쳐 식각 방법.
- 제 1 항 내지 제 9 항 중 어느 한 항에 있어서,더 넓은 피쳐의 폭은 더 좁은 피쳐의 폭보다 적어도 5배 더 넓은, 피쳐 식각 방법.
- 제 1 항 내지 제 10 항 중 어느 한 항에 있어서,더 좁은 피쳐의 폭은 30 nm 이하인, 피쳐 식각 방법.
- 제 1 항 내지 제 11 항 중 어느 한 항에 있어서,상기 도전층 상부에 마스크층을 형성하는 단계를 더 포함하며,상기 마스크층은 상이한 폭의 피쳐를 가지도록 패터닝되고, 상기 애스펙트비 종속 증착물이 상기 마스크층 상부에 형성되는, 피쳐 식각 방법.
- 제 12 항에 있어서,상기 마스크층은 실리콘 산화물계 또는 탄소계인, 피쳐 식각 방법.
- 제 12 항 또는 제 13 항에 있어서,상기 마스크층을 제거하는 단계를 더 포함하는, 피쳐 식각 방법.
- 제 1 항 내지 제 14 항 중 어느 한 항에 기재된 피쳐 식각 방법에 의해 제조된, 반도체 디바이스.
- 도전층에 상이한 애스펙트비의 피쳐를 식각하는 방법으로서,상기 도전층 상부에 애스펙트비 종속 증착물을 증착하는 단계;상기 도전층의 애스펙트비 종속 식각에 의해 상기 도전층에 피쳐를 식각하는 단계; 및상기 증착 단계 및 상기 식각 단계를 적어도 1회 반복하는 단계를 포함하고,상기 피쳐의 애스펙트비는 7:1 을 초과하고,더 넓은 피쳐 (wider features) 의 폭은 더 좁은 피쳐 (narrower features) 의 폭보다 적어도 5배 더 넓으며,상기 증착 단계는 선택적으로 상기 피쳐의 측벽 및 상기 더 좁은 피쳐의 버텀보다 상기 더 넓은 피쳐의 버텀 상에 더 많이 증착하고, 그리고상기 식각 단계는 선택적으로 상기 더 좁은 피쳐보다 상기 더 넓은 피쳐를 더 빨리 식각하는, 피쳐 식각 방법.
- 제 16 항에 있어서,상기 식각 단계는 상기 애스펙트비 종속 증착물을 제거하고,상기 애스펙트비 종속 증착물의 식각은 상기 더 넓은 피쳐보다 먼저 상기 더 좁은 피쳐에서 종료하는, 피쳐 식각 방법.
- 제 16 항 또는 제 17 항에 있어서,상기 도전층의 식각은 상기 더 넓은 피쳐보다 먼저 상기 더 좁은 피쳐 상에서 시작하는, 피쳐 식각 방법.
- 제 16 항 내지 제 18 항 중 어느 한 항에 있어서,상기 증착 단계는, 상기 피쳐가 상당히 좁아지기 이전에 정지되는, 피쳐 식각 방법.
- 도전층에 상이한 애스펙트비의 피쳐를 식각하는 장치로서,플라즈마 프로세싱 챔버 인클로져를 형성하는 챔버 벽과, 상기 플라즈마 프로세싱 챔버 인클로져 내에서 기판을 지지하는 기판 지지체와, 상기 플라즈마 프로세싱 챔버 인클로져에서 압력을 조절하는 압력 조절기와, 상기 플라즈마 프로세싱 챔버 인클로져에 전력을 제공하여 플라즈마를 유지하는 적어도 하나의 전극과, 상기 적어도 하나의 전극에 전기적으로 연결되는 적어도 하나의 RF 전원과, 상기 플라즈마 프로세싱 챔버 인클로져로 가스를 제공하는 가스 유입구와, 상기 플라즈마 프로세싱 챔버 인클로져로부터 가스를 배출하는 가스 배출구를 포함하는 플라즈마 프로세싱 챔버;상기 가스 유입구와 유체 연통되고, 증착 가스 소스 및 식각 가스 소스를 포 함하는 가스 소스; 및상기 가스 소스 및 상기 적어도 하나의 RF 전원에 제어가능하게 연결되고, 적어도 하나의 프로세서 및 컴퓨터 판독가능 매체를 포함하는 제어부를 포함하며,상기 컴퓨터 판독가능 매체는,상기 도전층 상부에 애스펙트비 종속 증착물을 증착하기 위한 컴퓨터 판독가능 코드와,상기 도전층의 애스펙트비 종속 식각에 의해 상기 도전층에 피쳐를 식각하기 위한 컴퓨터 판독가능 코드와,상기 증착 및 상기 식각을 적어도 1회 반복하기 위한 컴퓨터 판독가능 코드를 포함하는, 피쳐 식각 장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/757,950 | 2007-06-04 | ||
US11/757,950 US7629255B2 (en) | 2007-06-04 | 2007-06-04 | Method for reducing microloading in etching high aspect ratio structures |
PCT/US2008/065512 WO2008151120A1 (en) | 2007-06-04 | 2008-06-02 | Method for reducing microloading in etching high aspect ratio structures |
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Publication Number | Publication Date |
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KR20100035140A true KR20100035140A (ko) | 2010-04-02 |
KR101494923B1 KR101494923B1 (ko) | 2015-02-23 |
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KR1020097027614A Expired - Fee Related KR101494923B1 (ko) | 2007-06-04 | 2008-06-02 | 고애스펙트비 구조의 식각시 마이크로로딩의 감소 방법 |
Country Status (6)
Country | Link |
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US (1) | US7629255B2 (ko) |
JP (1) | JP5632280B2 (ko) |
KR (1) | KR101494923B1 (ko) |
CN (1) | CN101730930B (ko) |
TW (1) | TWI473161B (ko) |
WO (1) | WO2008151120A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150130920A (ko) * | 2014-05-14 | 2015-11-24 | 도쿄엘렉트론가부시키가이샤 | 피에칭층을 에칭하는 방법 |
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CN102969240B (zh) * | 2007-11-21 | 2016-11-09 | 朗姆研究公司 | 控制对含钨层的蚀刻微负载的方法 |
JP5223878B2 (ja) * | 2010-03-30 | 2013-06-26 | 株式会社デンソー | 半導体装置の製造方法 |
US8563428B2 (en) * | 2010-09-17 | 2013-10-22 | Applied Materials, Inc. | Methods for depositing metal in high aspect ratio features |
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US8377632B2 (en) * | 2011-05-29 | 2013-02-19 | Nanya Technology Corp. | Method of reducing microloading effect |
TWI556306B (zh) * | 2012-02-01 | 2016-11-01 | Tokyo Electron Ltd | Plasma etching method and plasma etching device |
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US11289402B2 (en) | 2019-02-22 | 2022-03-29 | Samsung Electronics Co., Ltd. | Semiconductor device including TSV and method of manufacturing the same |
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JP2021028968A (ja) * | 2019-08-13 | 2021-02-25 | 東京エレクトロン株式会社 | 基板および基板処理方法 |
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CN114914156A (zh) * | 2022-06-30 | 2022-08-16 | 北京北方华创微电子装备有限公司 | 刻蚀方法 |
CN117219506B (zh) * | 2023-11-09 | 2024-03-12 | 深圳基本半导体有限公司 | 一种消除刻蚀负载效应的方法 |
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JP5089850B2 (ja) * | 2003-11-25 | 2012-12-05 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
TWI255502B (en) * | 2005-01-19 | 2006-05-21 | Promos Technologies Inc | Method for preparing structure with high aspect ratio |
US20060264054A1 (en) * | 2005-04-06 | 2006-11-23 | Gutsche Martin U | Method for etching a trench in a semiconductor substrate |
-
2007
- 2007-06-04 US US11/757,950 patent/US7629255B2/en not_active Expired - Fee Related
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2008
- 2008-06-02 KR KR1020097027614A patent/KR101494923B1/ko not_active Expired - Fee Related
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150130920A (ko) * | 2014-05-14 | 2015-11-24 | 도쿄엘렉트론가부시키가이샤 | 피에칭층을 에칭하는 방법 |
KR20170089782A (ko) * | 2016-01-27 | 2017-08-04 | 램 리써치 코포레이션 | 하이브리드 스테어-스텝 에칭 |
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WO2008151120A1 (en) | 2008-12-11 |
TW200903634A (en) | 2009-01-16 |
CN101730930B (zh) | 2013-04-10 |
US20080296736A1 (en) | 2008-12-04 |
KR101494923B1 (ko) | 2015-02-23 |
CN101730930A (zh) | 2010-06-09 |
JP2010529679A (ja) | 2010-08-26 |
JP5632280B2 (ja) | 2014-11-26 |
US7629255B2 (en) | 2009-12-08 |
TWI473161B (zh) | 2015-02-11 |
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