JP2022505873A - テーパー状の傾斜したフィンを作製するための制御されたハードマスク成形 - Google Patents
テーパー状の傾斜したフィンを作製するための制御されたハードマスク成形 Download PDFInfo
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- 239000000758 substrate Substances 0.000 claims abstract description 105
- 150000002500 ions Chemical class 0.000 claims abstract description 95
- 238000000034 method Methods 0.000 claims abstract description 53
- 238000005530 etching Methods 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 28
- 230000003628 erosive effect Effects 0.000 claims description 16
- 238000010884 ion-beam technique Methods 0.000 claims description 12
- 238000001020 plasma etching Methods 0.000 claims description 11
- 238000000992 sputter etching Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 abstract description 85
- 238000010586 diagram Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 230000003190 augmentative effect Effects 0.000 description 4
- 239000012780 transparent material Substances 0.000 description 4
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- 238000004519 manufacturing process Methods 0.000 description 3
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- 229910052709 silver Inorganic materials 0.000 description 3
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- -1 phosphides Chemical class 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- 150000004772 tellurides Chemical class 0.000 description 1
- PSDQQCXQSWHCRN-UHFFFAOYSA-N vanadium(4+) Chemical compound [V+4] PSDQQCXQSWHCRN-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1857—Manufacturing methods using exposure or etching means, e.g. holography, photolithography, exposure to electron or ion beams
-
- 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
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
-
- 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
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1842—Gratings for image generation
-
- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/2633—Bombardment with radiation with high-energy radiation for etching, e.g. sputteretching
-
- 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
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- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
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- Micromachines (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Description
[0001]本出願は、参照により本明細書に組み込まれる2018年10月31日に出願された米国仮特許出願第62/753,847号の優先権を主張する。
Claims (15)
- 基板であって、パターニングされた多層マスクが、前記基板上に配置され、前記パターニングされた多層マスクが、
前記基板または前記基板上に配置されたデバイス層の露出部分を画定する2つ以上の最初の突起であって、各最初の突起が、前記基板上に配置された底面における後縁を有する、最初の突起を有する、前記基板上に配置された最初のパターニングされたマスクと、
前記最初のパターニングされたマスクの各最初の突起上に配置された2つ以上の後続の突起であって、各後続の突起が、各後続の突起の上面における前縁と、前記上面から各最初の突起までの高さとを含む、後続の突起を有する少なくとも1つの後続のパターニングされたマスクと、
を含む、基板を、前記基板の表面の表面法線に対してイオン角度のイオンに曝露して、複数の深さのうちの最初の深さを形成することと、
前記基板を前記イオン角度のイオンに曝露することを繰り返して、前記複数の深さのうちの少なくとも1つの後続の深さを形成することと、
を含む方法。 - 前記最初のパターニングされたマスクが、第1の侵食速度を有する第1の材料を含み、前記少なくとも1つの後続のパターニングされたマスクが、第2の侵食速度を有する第2の材料を含む、請求項1に記載の方法。
- 前記基板を前記イオン角度のイオンに曝露した後に、エッチングプロセスを実行することを、さらに含む、請求項2に記載の方法。
- 前記エッチングプロセスのエッチング化学物質に基づいて、前記第2の侵食速度が、前記第1の侵食速度よりも大きい、請求項3に記載の方法。
- 前記基板が前記イオンに曝露されたとき、前記第2の侵食速度が、前記第1の侵食速度よりも大きい、請求項2に記載の方法。
- 前記少なくとも1つの後続の深さの後続の線幅が、前記高さを減少させることにより前記前縁の前縁平面と前記後縁の後縁平面との間の距離によって制御される、請求項2に記載の方法。
- 前記基板をイオンに曝露することが、傾斜イオンエッチングまたは指向性反応性イオンエッチング(RIE)を含む、請求項1から6のいずれか一項に記載の方法。
- 前記最初のパターニングされたマスクが、前記デバイス層と接触する、請求項1から7のいずれか一項に記載の方法。
- 基板であって、パターニングされたマスクが、前記基板上に配置され、前記パターニングされたマスクが、前記基板または前記基板上に配置されたデバイス層の露出部分を画定する2つ以上の突起を備え、各突起が、前記デバイス層と接触する底面における後縁、各突起の上面における前縁、および前記上面から前記デバイス層までの高さを有する、基板を、前記基板の表面の表面法線に対してイオン角度のイオンに曝露して、複数の深さのうちの最初の深さを形成することと、
前記基板を前記イオン角度のイオンに曝露することを繰り返して、前記複数の深さのうちの少なくとも1つの後続の深さを形成することと、
を含む方法。 - 前記デバイス層をイオンに曝露することが、傾斜イオンエッチングまたは指向性反応性イオンエッチング(RIE)を含む、請求項9に記載の方法。
- 傾斜イオンエッチングが、イオンビームを生成することと、前記イオンビームを前記イオン角度で前記基板に向けることとを含む、請求項10に記載の方法。
- 前記イオンビームが、リボンビーム、スポットビーム、またはフル基板サイズビームである、請求項11に記載の方法。
- 前記基板を前記イオン角度のイオンに曝露した後、異方性エッチングプロセスを実行することを、さらに含む、請求項10から12のいずれか一項に記載の方法。
- 前記少なくとも1つの後続の深さの後続の線幅が、各突起の前記高さおよび突起幅を減少させることにより前記前縁の前縁平面と前記後縁の後縁平面との間の距離によって制御される、請求項13に記載の方法。
- 基板上に配置されたデバイス層であって、パターニングされた多層マスクが、前記デバイス層上に配置され、前記パターニングされた多層マスクが、
前記デバイス層の露出部分を画定する2つ以上の最初の突起であって、各最初の突起が、前記デバイス層と接触する底面における後縁を有する、最初の突起を有する、前記デバイス層上に配置された最初のパターニングされたマスクであって、第1の侵食速度を有する第1の材料を含む最初のパターニングされたマスクと、
前記最初のパターニングされたマスクの各最初の突起上に配置された2つ以上の後続の突起であって、各後続の突起が、各後続の突起の上面における前縁と、前記上面から各最初の突起までの高さとを含む、後続の突起を有する少なくとも1つの後続のパターニングされたマスクであって、前記第1の侵食速度よりも大きい第2の侵食速度を有する第2の材料を含む少なくとも1つの後続のパターニングされたマスクと、
を含む、デバイス層を、前記基板の表面の表面法線に対してイオン角度で前記デバイス層と接触するイオンに曝露して、複数の深さのうちの最初の深さを形成することと、
前記デバイス層を、前記イオン角度で前記デバイス層と接触するイオンに曝露することを繰り返して、前記複数の深さのうちの少なくとも1つの後続の深さを形成することと、
を含む方法。
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US201862753847P | 2018-10-31 | 2018-10-31 | |
US62/753,847 | 2018-10-31 | ||
PCT/US2019/057950 WO2020092133A1 (en) | 2018-10-31 | 2019-10-24 | Controlled hardmask shaping to create tapered slanted fins |
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Patent Citations (5)
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JPH01231327A (ja) * | 1988-03-11 | 1989-09-14 | Nec Corp | 半導体基板の傾斜端面形成法 |
JP2010096958A (ja) * | 2008-10-16 | 2010-04-30 | Anritsu Corp | 光変調器 |
US20150118604A1 (en) * | 2012-05-25 | 2015-04-30 | The Regents Of The University Of California | Method for fabrication of high aspect ratio trenches and formation of nanoscale features therefrom |
JP2018037648A (ja) * | 2016-06-30 | 2018-03-08 | インフィネオン テクノロジーズ アーゲーInfineon Technologies Ag | 有向イオンビームの使用による電極トレンチの形成とトレンチ電極構造を有する半導体素子 |
US20180182623A1 (en) * | 2016-12-22 | 2018-06-28 | Samsung Electronics Co., Ltd. | Method of forming fine patterns of a semiconductor device |
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CN112805613A (zh) | 2021-05-14 |
US11581189B2 (en) | 2023-02-14 |
TW202036713A (zh) | 2020-10-01 |
KR102676903B1 (ko) | 2024-06-25 |
CN112805613B (zh) | 2023-07-11 |
JP7196295B2 (ja) | 2022-12-26 |
EP3874323A1 (en) | 2021-09-08 |
WO2020092133A1 (en) | 2020-05-07 |
US20200135482A1 (en) | 2020-04-30 |
TWI840434B (zh) | 2024-05-01 |
KR20210084566A (ko) | 2021-07-07 |
US11171010B2 (en) | 2021-11-09 |
US20210305055A1 (en) | 2021-09-30 |
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