JP2009152243A - 半導体装置の製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 84
- 239000010703 silicon Substances 0.000 claims abstract description 84
- 239000011368 organic material Substances 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 238000000059 patterning Methods 0.000 claims abstract description 6
- 238000005530 etching Methods 0.000 claims description 31
- 239000011521 glass Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 59
- 229910052814 silicon oxide Inorganic materials 0.000 description 59
- 239000007789 gas Substances 0.000 description 33
- 229910021417 amorphous silicon Inorganic materials 0.000 description 29
- 229910052581 Si3N4 Inorganic materials 0.000 description 27
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 27
- 238000001312 dry etching Methods 0.000 description 16
- 238000007687 exposure technique Methods 0.000 description 14
- 239000011162 core material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- 238000004380 ashing Methods 0.000 description 4
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- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000009832 plasma treatment Methods 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
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- 150000002431 hydrogen Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000007261 regionalization Effects 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- 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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- H01L21/3105—After-treatment
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- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
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- 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
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Abstract
【解決手段】基板W上に第1のシリコン含有膜3と有機材料膜4と第2のシリコン含有膜5と、細幅と太幅のパターンを有する第1のマスク6a、6bとを順次形成し、第1のマスク6a、6bを用いて第2のシリコン含有膜5を細幅と太幅にパターニングし、第1のマスク6a、6bを除去するとともに有機材料膜4を細幅と太幅にパターニングし、第2のシリコン含有膜5と有機材料膜4と被覆して第3のシリコン含有膜7を形成し、第3のシリコン含有膜7を加工して第2のシリコン含有膜5及び有機材料膜4の側面に側壁を形成し、第2のシリコン含有膜5と該側壁を選択的に被覆する有機材料の第2のマスク8を形成し、第2のマスク8を用いて細幅にパターニングされた第2のシリコン含有膜5を除去し、細幅にパターニングされた有機材料膜4と第2のマスク8を除去する。
【選択図】図1−3
Description
図1−1〜図1−3は、本発明の第1の実施の形態にかかる半導体装置の製造方法を説明するための断面図である。本実施の形態では、ゲート電極加工時のハードマスクに用いる事が可能なシリコン窒化膜のラインアンドスペースパターンを形成する場合を例に説明する。
図5は、幅広ラインパターンの芯材(幅広ラインパターンの有機材料膜4)の侵食について説明するための断面図である。上述した第1の実施の形態においては、ラインアンドスペースパターンの芯材(ラインアンドスペースパターンの有機材料膜4)と幅広ラインパターンを被覆するレジスト8との除去工程(図1−3(h))における反応成分やラジカル粒子等が、アモルファスシリコン7の側壁とシリコン酸化膜5との隙間から浸入し(図5(a))、幅広ラインパターンの芯材(幅広ラインパターンの有機材料膜4)を侵食する可能性がある(図5(b))。第2の実施の形態では、この反応成分やラジカル粒子等の侵入を抑制する半導体装置の製造方法について説明する。
Claims (5)
- 半導体基板上にシリコンを含有する第1のシリコン含有膜を形成する第1の工程と、
前記第1のシリコン含有膜上に有機材料膜を形成する第2の工程と、
前記有機材料膜上にシリコンを含有するとともに前記第1のシリコン含有膜と異なる第2のシリコン含有膜を形成する第3の工程と、
前記第2のシリコン含有膜上に細幅と太幅のパターンを有する第1のマスクを形成する第4の工程と、
前記第1のマスクを用いて異方性エッチングにより前記第2のシリコン含有膜を細幅と太幅のパターンにパターニングする第5の工程と、
前記パターニングされた第2のシリコン含有膜と前記第1のシリコン含有膜とに対してエッチング選択性を有する条件で、異方性エッチングにより前記第1のマスクを除去するとともに前記有機材料膜を前記細幅と太幅のパターンにパターニングする第6の工程と、
前記パターニングされた前記第2のシリコン含有膜と前記有機材料膜とを被覆するように、シリコンを含有するとともに前記第1のシリコン含有膜と異なる第3のシリコン含有膜を前記半導体基板上に形成する第7の工程と、
第3のシリコン含有膜をエッチバックして、前記パターニングされた前記第2のシリコン含有膜および前記有機材料膜の側面に前記第3のシリコン含有膜の側壁を形成する第8の工程と、
前記太幅にパターニングされた第2のシリコン含有膜とその前記側壁とを選択的に被覆するように、有機材料からなる第2のマスクを形成する第9の工程と、
前記第2のマスクを用いて前記細幅にパターニングされた第2のシリコン含有膜を除去する第10の工程と、
前記太幅にパターニングされた第2のシリコン含有膜と前記第1のシリコン含有膜と前記第3のシリコン含有膜とに対してエッチング選択性を有する条件で、前記細幅にパターニングされた有機材料膜と前記第2のマスクとを除去する第11の工程と、
を含むことを特徴とする半導体装置の製造方法。 - 前記第4の工程と第5の工程との間に前記第1のマスクをスリミング加工する工程および/または前記第5の工程で前記第2のシリコン含有膜をスリミング加工する工程をさらに含むこと、
を特徴とする請求項1に記載の半導体装置の製造方法。 - 前記第6の工程と第7の工程の間に、前記有機材料膜を前記第2のシリコン含有膜に対して選択的にスリミング加工する工程をさらに含むこと、
を特徴とする請求項1または請求項2に記載の半導体装置の製造方法。 - 前記第11の工程の後に、前記第3のシリコン含有膜に対してエッチング選択性を有する条件で前記第1のシリコン含有膜を微細パターンと幅広のパターンにパターニングする工程をさらに含むこと、
を特徴とする請求項1に記載の半導体装置の製造方法。 - 前記第2のシリコン含有膜が、SOG(Spin on Glass)膜であること、
を特徴とする請求項1に記載の半導体装置の製造方法。
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JP2007326422A JP2009152243A (ja) | 2007-12-18 | 2007-12-18 | 半導体装置の製造方法 |
US12/336,348 US7749913B2 (en) | 2007-12-18 | 2008-12-16 | Semiconductor device manufacturing method |
KR1020080128657A KR100995725B1 (ko) | 2007-12-18 | 2008-12-17 | 반도체 장치 제조 방법 |
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CN110571219B (zh) * | 2018-06-05 | 2021-09-03 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其制造方法和掩膜板 |
JP6981945B2 (ja) * | 2018-09-13 | 2021-12-17 | 信越化学工業株式会社 | パターン形成方法 |
CN111261514B (zh) * | 2018-11-30 | 2024-09-24 | 东京毅力科创株式会社 | 基片处理方法 |
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JP2013089827A (ja) * | 2011-10-20 | 2013-05-13 | Fujitsu Semiconductor Ltd | 半導体装置の製造方法 |
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JP2018026495A (ja) * | 2016-08-12 | 2018-02-15 | 東京エレクトロン株式会社 | 被処理体を処理する方法 |
JP2020017569A (ja) * | 2018-07-23 | 2020-01-30 | 東京エレクトロン株式会社 | エッチング方法及びエッチング装置 |
WO2020022045A1 (ja) * | 2018-07-23 | 2020-01-30 | 東京エレクトロン株式会社 | エッチング方法及びエッチング装置 |
CN111819665A (zh) * | 2018-07-23 | 2020-10-23 | 东京毅力科创株式会社 | 蚀刻方法和蚀刻装置 |
US11462407B2 (en) | 2018-07-23 | 2022-10-04 | Tokyo Electron Limited | Etching method and etching apparatus |
Also Published As
Publication number | Publication date |
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KR20090066238A (ko) | 2009-06-23 |
US20090163030A1 (en) | 2009-06-25 |
KR100995725B1 (ko) | 2010-11-19 |
US7749913B2 (en) | 2010-07-06 |
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