KR101044427B1 - 드라이 에칭방법 - Google Patents
드라이 에칭방법 Download PDFInfo
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- KR101044427B1 KR101044427B1 KR1020090069302A KR20090069302A KR101044427B1 KR 101044427 B1 KR101044427 B1 KR 101044427B1 KR 1020090069302 A KR1020090069302 A KR 1020090069302A KR 20090069302 A KR20090069302 A KR 20090069302A KR 101044427 B1 KR101044427 B1 KR 101044427B1
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- South Korea
- Prior art keywords
- etching
- film
- polysilicon film
- gas
- carbon polymer
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 21
- 238000001312 dry etching Methods 0.000 title claims description 7
- 238000005530 etching Methods 0.000 claims abstract description 53
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 42
- 229920005591 polysilicon Polymers 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 37
- 229920000642 polymer Polymers 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 239000007769 metal material Substances 0.000 claims abstract description 21
- 238000004380 ashing Methods 0.000 claims abstract description 13
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 6
- 150000002367 halogens Chemical class 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 11
- 229910052718 tin Inorganic materials 0.000 description 11
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000151 deposition Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- -1 CH 4 or C 2 H 6 Chemical compound 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910004129 HfSiO Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Classifications
-
- 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
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/427—Stripping or agents therefor using plasma means only
-
- 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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
- H01L21/02071—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers the processing being a delineation, e.g. RIE, of conductive layers
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02115—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material being carbon, e.g. alpha-C, diamond or hydrogen doped carbon
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Semiconductors (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (4)
- 삭제
- 반도체 기판 상에 형성된 금속/고유전체 게이트 구조의 드라이 에칭방법에 있어서,폴리실리콘막을 에칭하는 공정과,카본을 함유하는 플라즈마에 의하여 상기 폴리실리콘막의 측벽에 카본 폴리머의 보호막을 형성시키는 공정과,할로겐계 가스의 플라즈마에 의하여 상기 폴리실리콘막의 하층막인 금속재료의 에칭처리를 행하는 공정과,당해 에칭처리 후에 비산한 금속재료와 함께 상기 카본 폴리머의 보호벽을 제거하는 애싱공정을 구비하되,상기 카본 폴리머의 보호막을 형성시키는 공정은, 에칭가스로서, CHF3 : 100ml/min을 사용하고, 에칭장치의 처리실 내 압력을 0.3Pa로 유지하고 웨이퍼 온도는 40℃로 한 것을 특징으로 하는 드라이 에칭방법.
- 반도체 기판 상에 형성된 금속/고유전체 게이트 구조의 드라이 에칭방법에 있어서,폴리실리콘막을 에칭하는 공정과,카본을 함유하는 플라즈마에 의하여 상기 폴리실리콘막의 측벽에 카본 폴리머의 보호막을 형성시키는 공정과,할로겐계 가스의 플라즈마에 의하여 상기 폴리실리콘막의 하층막인 금속재료의 에칭처리를 행하는 공정과,당해 에칭처리 후에 비산한 금속재료와 함께 상기 카본 폴리머의 보호벽을 제거하는 애싱공정을 구비하되,상기 카본 폴리머의 보호막을 형성시키는 공정은, 에칭가스로서, CHF3, CH4, C2H6, CH2F2, CF4, C4F8, C3F6, C3F8, CH3OH, CO 중 적어도 하나를 함유하는 가스, 또는, 이들 중 2개 이상을 혼합한 혼합가스, 또는, 이들 중 적어도 하나를 함유하는 가스에 Ar, He, O2, N2, HBr, Cl2 등 중 어느 하나의 첨가 가스를 혼합한 가스를 사용하는 것을 특징으로 하는 드라이 에칭방법.
- 삭제
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009114109A JP5250476B2 (ja) | 2009-05-11 | 2009-05-11 | ドライエッチング方法 |
JPJP-P-2009-114109 | 2009-05-11 |
Publications (2)
Publication Number | Publication Date |
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KR20100122039A KR20100122039A (ko) | 2010-11-19 |
KR101044427B1 true KR101044427B1 (ko) | 2011-06-27 |
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KR1020090069302A KR101044427B1 (ko) | 2009-05-11 | 2009-07-29 | 드라이 에칭방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7989330B2 (ko) |
JP (1) | JP5250476B2 (ko) |
KR (1) | KR101044427B1 (ko) |
TW (1) | TWI404140B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10840105B2 (en) | 2015-06-15 | 2020-11-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Gate structure with insulating structure and method for manufacturing the same |
Families Citing this family (5)
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JP6007754B2 (ja) * | 2012-11-27 | 2016-10-12 | 三菱電機株式会社 | 配線構造の製造方法 |
CN104241088B (zh) * | 2013-06-09 | 2017-07-14 | 中芯国际集成电路制造(上海)有限公司 | 条形结构的形成方法 |
JP6267953B2 (ja) * | 2013-12-19 | 2018-01-24 | 東京エレクトロン株式会社 | 半導体装置の製造方法 |
JP7061941B2 (ja) * | 2018-08-06 | 2022-05-02 | 東京エレクトロン株式会社 | エッチング方法及び半導体デバイスの製造方法 |
US11915933B2 (en) * | 2020-09-18 | 2024-02-27 | Changxin Memory Technologies, Inc. | Manufacturing method of semiconductor structure |
Citations (2)
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JPH0831801A (ja) * | 1994-07-13 | 1996-02-02 | Sony Corp | ドライエッチング方法 |
KR20040090931A (ko) * | 2003-04-17 | 2004-10-27 | 어플라이드 머티어리얼스, 인코포레이티드 | 전계효과 트랜지스터의 게이트 구조를 제조하는 방법 |
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JPH10303183A (ja) * | 1997-04-28 | 1998-11-13 | Sony Corp | パターンの形成方法 |
US6071822A (en) * | 1998-06-08 | 2000-06-06 | Plasma-Therm, Inc. | Etching process for producing substantially undercut free silicon on insulator structures |
JP2000091318A (ja) * | 1998-09-09 | 2000-03-31 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2000277494A (ja) * | 1999-03-26 | 2000-10-06 | Sony Corp | 有機系反射防止膜のエッチング方法および半導体装置の製造方法 |
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US7163880B2 (en) * | 2004-06-02 | 2007-01-16 | Texas Instruments Incorporated | Gate stack and gate stack etch sequence for metal gate integration |
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JP5223364B2 (ja) * | 2008-02-07 | 2013-06-26 | 東京エレクトロン株式会社 | プラズマエッチング方法及び記憶媒体 |
JP5547878B2 (ja) * | 2008-06-30 | 2014-07-16 | 株式会社日立ハイテクノロジーズ | 半導体加工方法 |
JP5579374B2 (ja) * | 2008-07-16 | 2014-08-27 | 株式会社日立ハイテクノロジーズ | 半導体加工方法 |
JP2010199126A (ja) * | 2009-02-23 | 2010-09-09 | Panasonic Corp | プラズマ処理方法およびプラズマ処理装置 |
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2009
- 2009-05-11 JP JP2009114109A patent/JP5250476B2/ja active Active
- 2009-07-23 TW TW098124871A patent/TWI404140B/zh active
- 2009-07-29 KR KR1020090069302A patent/KR101044427B1/ko active IP Right Grant
- 2009-07-30 US US12/512,103 patent/US7989330B2/en active Active
Patent Citations (2)
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JPH0831801A (ja) * | 1994-07-13 | 1996-02-02 | Sony Corp | ドライエッチング方法 |
KR20040090931A (ko) * | 2003-04-17 | 2004-10-27 | 어플라이드 머티어리얼스, 인코포레이티드 | 전계효과 트랜지스터의 게이트 구조를 제조하는 방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10840105B2 (en) | 2015-06-15 | 2020-11-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Gate structure with insulating structure and method for manufacturing the same |
Also Published As
Publication number | Publication date |
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JP5250476B2 (ja) | 2013-07-31 |
TW201041031A (en) | 2010-11-16 |
TWI404140B (zh) | 2013-08-01 |
US20100285669A1 (en) | 2010-11-11 |
JP2010263132A (ja) | 2010-11-18 |
KR20100122039A (ko) | 2010-11-19 |
US7989330B2 (en) | 2011-08-02 |
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