KR100382720B1 - 반도체 식각 장치 및 이를 이용한 반도체 소자의 식각 방법 - Google Patents
반도체 식각 장치 및 이를 이용한 반도체 소자의 식각 방법 Download PDFInfo
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- KR100382720B1 KR100382720B1 KR10-2000-0050786A KR20000050786A KR100382720B1 KR 100382720 B1 KR100382720 B1 KR 100382720B1 KR 20000050786 A KR20000050786 A KR 20000050786A KR 100382720 B1 KR100382720 B1 KR 100382720B1
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- etching
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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
- H01L21/302—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- 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
- H01J37/32357—Generation remote from the workpiece, e.g. down-stream
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/08—Ion sources; Ion guns
-
- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Analytical Chemistry (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (19)
- 웨이퍼가 도입되는 챔버;상기 챔버내에 도입된 상기 웨이퍼 상면에 래디칼을 공급할 수 있는 래디칼 소스;상기 래디칼 소스와 독립적으로 상기 웨이퍼 상면에 이온빔 또는 플라즈마빔를 공급할 수 있는 빔 소스;상기 챔버내에 도입되는 웨이퍼를 지지하고 고정시킬 수 있는 웨이퍼 스테이지; 및상기 이온빔, 플라즈마빔 또는 래디칼에 의하여 이온화된 챔버 내의 전하를 중화시킬 수 있는 중화기을 포함하는 것을 특징으로 하는 반도체 식각 장치.
- 제1항에 있어서, 상기 빔 소스는 유도결합 플라즈마 장치이며, 식각 대상 또는 식각 조건에 맞게 빔 에너지를 조절할 수 있도록 구비되는 것을 특징으로 하는 반도체 식각 장치.
- 제1항 또는 제2항에 있어서, 상기 빔 소스는 발생된 플라즈마빔 또는 이온빔을 빔 그리드, 가속 그리드 및 접지 그리드의 3개의 그리드를 이용하여 가속시킬수 있도록 구비되는 것을 특징으로 하는 반도체 식각 장치.
- 제1항에 있어서, 상기 래디칼 소스는 플라즈마를 형성하여 상기 챔버내로 래디칼을 분사시킬 수 있도록 구비되는 것을 특징으로 하는 반도체 식각 장치.
- 제4항에 있어서, 상기 플라즈마는 유도결합 플라즈마 방식으로 형성하는 것을 특징으로 하는 반도체 식각 장치.
- 제1항에 있어서, 상기 중화기는 이온빔, 플라즈마빔 또는 래디칼에 의하여 양이온화된 상기 챔버내로 전자를 공급하여 상기 챔버 분위기를 중화할 수 있도록 구비되는 것을 특징으로 하는 반도체 식각 장치.
- 제7항에 있어서, 상기 중화기는 할로우 음극 방출기인 것을 특징으로 하는 반도체 식각 장치.
- 제1항에 있어서, 상기 웨이퍼 스테이지에는 도입된 웨이퍼를 냉각시킬 수 있는 냉각 장치가 구비되어 있는 것을 특징으로 하는 반도체 식각 장치.
- 래디칼 흡착에 의하여 반도체 웨이퍼 표면에 반응층을 형성하는 단계; 및상기 반도체 웨이퍼 표면에 형성된 반응층을 탈착시켜 웨이퍼 표면을 식각하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제9항에 있어서, 상기 반도체 웨이퍼 표면은 서로 다른 두개의 식각 대상막과 식각 대상 이외의 막으로 이루어지고, 상기 반응층은 상기 식각 대상막 및 식각 대상 이외의 막에 형성되며, 상기 반도체 웨이퍼 표면에 형성된 반응층을 탈착시켜 실시하는 웨이퍼 표면의 식각은 식각 대상 이외의 막에 대한 식각 대상막의 식각 선택비가 높게 형성되도록 이루어지는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제9항 또는 제10항에 있어서, 상기 래디칼 흡착에 의한 반응층 형성 단계와 래디칼 탈착에 의한 식각 단계를 2회 이상 반복하여 실시하여 웨이퍼 표면 상의 식각 대상막을 식각하는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제11항에 있어서, 상기 래디칼 흡착에 의한 반응층 형성 단계와 래디칼 탈착에 의한 식각 단계를 반복 실시하여 웨이퍼 표면 상의 식각 대상막을 식각할 경우, 식각 대상막 이외의 다른 막은 거의 식각 되지 않도록 이온빔 또는 플라즈마빔의 빔 에너지를 설정하여 식각 선택비를 높이는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제12항에 있어서, 상기 식각 대상막은 SiO2막이고, 상기 다른 막은 Si3N4막인 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제13항에 있어서, 상기 SiO2막과 Si3N4막의 식각 선택비를 높이기 위한 이온빔 또는 플라즈마의 빔 에너지는 90 내지 110 eV 정도인 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제9항에 있어서, 상기 래디칼의 흡착은 웨이퍼가 도입된 챔버내로 래디칼을 공급할 수 있도록 하는 래디칼 소스를 사용하여 이루어지는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제15항에 있어서, 상기 래티칼 소스로서 H와 N을 포함하는 가스와, F를 함유하는 가스의 조합으로 이루어진 혼합 가스를 사용하는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제16항에 있어서, 상기 H와 N을 포함하는 가스 및 F를 포함하는 가스의 조합으로 이루어진 혼합 가스는 F에 대한 H의 비가 1 이상인 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제9항에 있어서, 상기 웨이퍼 표면에 형성된 반응층의 탈착에 의한 식각은 이온빔 또는 플라즈마빔을 사용하여 이루어지는 것을 특징으로 하는 반도체 소자의 식각 방법.
- 제18항에 있어서, 상기 이온빔 또는 플라즈마빔의 원은 불활성 물질인 것을 특징으로 하는 반도체 소자의 식각 방법.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0050786A KR100382720B1 (ko) | 2000-08-30 | 2000-08-30 | 반도체 식각 장치 및 이를 이용한 반도체 소자의 식각 방법 |
| US09/793,143 US20020025681A1 (en) | 2000-08-30 | 2001-02-27 | Semiconductor etching apparatus and method of etching semiconductor devices using same |
| TW090105297A TW539772B (en) | 2000-08-30 | 2001-03-07 | Semiconductor etching apparatus and method of etching semiconductor devices using same |
| JP2001136491A JP2002083799A (ja) | 2000-08-30 | 2001-05-07 | 半導体エッチング装置およびこれを利用した半導体素子のエッチング方法 |
| US10/364,344 US20030116277A1 (en) | 2000-08-30 | 2003-02-12 | Semiconductor etching apparatus and method of etching semiconductor devices using same |
| US11/431,080 US20060205190A1 (en) | 2000-08-30 | 2006-05-10 | Semiconductor etching apparatus and method of etching semiconductor devices using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0050786A KR100382720B1 (ko) | 2000-08-30 | 2000-08-30 | 반도체 식각 장치 및 이를 이용한 반도체 소자의 식각 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020017447A KR20020017447A (ko) | 2002-03-07 |
| KR100382720B1 true KR100382720B1 (ko) | 2003-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2000-0050786A Expired - Fee Related KR100382720B1 (ko) | 2000-08-30 | 2000-08-30 | 반도체 식각 장치 및 이를 이용한 반도체 소자의 식각 방법 |
Country Status (4)
| Country | Link |
|---|---|
| US (3) | US20020025681A1 (ko) |
| JP (1) | JP2002083799A (ko) |
| KR (1) | KR100382720B1 (ko) |
| TW (1) | TW539772B (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101102324B1 (ko) | 2008-11-26 | 2012-01-03 | 김용환 | 전자빔 소스로부터 조사된 전자빔 전하의 중화 방법 |
| WO2019245812A1 (en) * | 2018-06-22 | 2019-12-26 | Varian Semiconductor Equipment Associates, Inc. | System and methods using an inline surface engineering source |
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| KR100653073B1 (ko) * | 2005-09-28 | 2006-12-01 | 삼성전자주식회사 | 기판처리장치와 기판처리방법 |
| US7622721B2 (en) * | 2007-02-09 | 2009-11-24 | Michael Gutkin | Focused anode layer ion source with converging and charge compensated beam (falcon) |
| US20100151677A1 (en) * | 2007-04-12 | 2010-06-17 | Freescale Semiconductor, Inc. | Etch method in the manufacture of a semiconductor device |
| JP5703315B2 (ja) * | 2011-02-08 | 2015-04-15 | 株式会社アルバック | ラジカルエッチング方法 |
| US8617411B2 (en) * | 2011-07-20 | 2013-12-31 | Lam Research Corporation | Methods and apparatus for atomic layer etching |
| US8940640B2 (en) * | 2013-03-13 | 2015-01-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Source/drain structure of semiconductor device |
| US9431218B2 (en) | 2013-03-15 | 2016-08-30 | Tokyo Electron Limited | Scalable and uniformity controllable diffusion plasma source |
| CN104752256B (zh) * | 2013-12-25 | 2018-10-16 | 中微半导体设备(上海)有限公司 | 一种等离子体刻蚀方法和系统 |
| KR101529821B1 (ko) * | 2014-04-08 | 2015-06-29 | 성균관대학교산학협력단 | 반응성 이온빔 펄스를 이용한 mram 물질 식각 방법 |
| US9406535B2 (en) | 2014-08-29 | 2016-08-02 | Lam Research Corporation | Ion injector and lens system for ion beam milling |
| US10825652B2 (en) | 2014-08-29 | 2020-11-03 | Lam Research Corporation | Ion beam etch without need for wafer tilt or rotation |
| JP2016058590A (ja) * | 2014-09-11 | 2016-04-21 | 株式会社日立ハイテクノロジーズ | プラズマ処理方法 |
| US9881804B2 (en) | 2015-01-26 | 2018-01-30 | Tokyo Electron Limited | Method and system for high precision etching of substrates |
| US9779955B2 (en) * | 2016-02-25 | 2017-10-03 | Lam Research Corporation | Ion beam etching utilizing cryogenic wafer temperatures |
| JP2018046185A (ja) * | 2016-09-15 | 2018-03-22 | 東京エレクトロン株式会社 | 酸化シリコン及び窒化シリコンを互いに選択的にエッチングする方法 |
| US20220275533A1 (en) * | 2018-07-27 | 2022-09-01 | Ecole Polytechnique Federale De Lausanne (Epfl) | Non-contact polishing of a crystalline layer or substrate by ion beam etching |
| KR102755515B1 (ko) | 2019-02-28 | 2025-01-14 | 램 리써치 코포레이션 | 측벽 세정을 사용한 이온 빔 에칭 |
| CN112216581A (zh) * | 2020-11-02 | 2021-01-12 | 常州鑫立离子技术有限公司 | 一种利用热阴极产生中和电子的射频离子赋能装置 |
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- 2001-02-27 US US09/793,143 patent/US20020025681A1/en not_active Abandoned
- 2001-03-07 TW TW090105297A patent/TW539772B/zh not_active IP Right Cessation
- 2001-05-07 JP JP2001136491A patent/JP2002083799A/ja active Pending
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2003
- 2003-02-12 US US10/364,344 patent/US20030116277A1/en not_active Abandoned
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101102324B1 (ko) | 2008-11-26 | 2012-01-03 | 김용환 | 전자빔 소스로부터 조사된 전자빔 전하의 중화 방법 |
| WO2019245812A1 (en) * | 2018-06-22 | 2019-12-26 | Varian Semiconductor Equipment Associates, Inc. | System and methods using an inline surface engineering source |
| US11069511B2 (en) | 2018-06-22 | 2021-07-20 | Varian Semiconductor Equipment Associates, Inc. | System and methods using an inline surface engineering source |
| US11862433B2 (en) | 2018-06-22 | 2024-01-02 | Varlan Semiconductor Equipment Associates, Inc. | System and methods using an inline surface engineering source |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020017447A (ko) | 2002-03-07 |
| US20060205190A1 (en) | 2006-09-14 |
| TW539772B (en) | 2003-07-01 |
| JP2002083799A (ja) | 2002-03-22 |
| US20020025681A1 (en) | 2002-02-28 |
| US20030116277A1 (en) | 2003-06-26 |
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