JP4356747B2 - 高密度プラズマ化学蒸着を用いた間隙充填方法及び材料蒸着方法 - Google Patents
高密度プラズマ化学蒸着を用いた間隙充填方法及び材料蒸着方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 77
- 239000000463 material Substances 0.000 title claims abstract description 27
- 238000007740 vapor deposition Methods 0.000 title claims description 12
- 238000005229 chemical vapour deposition Methods 0.000 title claims description 9
- 230000008021 deposition Effects 0.000 claims abstract description 69
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000000151 deposition Methods 0.000 claims description 67
- 229910052805 deuterium Inorganic materials 0.000 claims description 41
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 39
- 150000001875 compounds Chemical class 0.000 claims description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 238000005530 etching Methods 0.000 claims description 11
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 125000001424 substituent group Chemical group 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000005137 deposition process Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 229910004283 SiO 4 Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000155 isotopic effect Effects 0.000 claims 3
- NZYCGFZUQASSNJ-UHFFFAOYSA-N O=[Si].OP(O)(O)=O Chemical compound O=[Si].OP(O)(O)=O NZYCGFZUQASSNJ-UHFFFAOYSA-N 0.000 claims 1
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- GDMRBHLKSYSMLJ-UHFFFAOYSA-N [F].O=[Si] Chemical compound [F].O=[Si] GDMRBHLKSYSMLJ-UHFFFAOYSA-N 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 abstract description 8
- -1 heavy-hydrogen compound Chemical group 0.000 abstract description 4
- 235000012431 wafers Nutrition 0.000 description 21
- 238000004544 sputter deposition Methods 0.000 description 16
- 239000002243 precursor Substances 0.000 description 15
- 229910052722 tritium Inorganic materials 0.000 description 11
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 9
- 239000002019 doping agent Substances 0.000 description 8
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000011800 void material Substances 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 150000001975 deuterium Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- ZOCHARZZJNPSEU-UHFFFAOYSA-N diboron Chemical compound B#B ZOCHARZZJNPSEU-UHFFFAOYSA-N 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
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Description
Claims (26)
- 基板上に層を蒸着する方法であって、
高密度プラズマ反応室内へ基板を供する工程と、
D2及びDHの一方又は両方と、重水素同位元素置換基をもつ少なくとも1種の化合物と、を含むガス混合物を前記反応室内へ供する工程と、
前記反応室内で高密度プラズマを発生させる工程と、
前記少なくとも1種の化合物の少なくとも一部を含む層を前記基板上へ化学蒸着させる工程と、
を含む方法。 - 前記重水素同位元素が重水素であることを特徴とする請求項1に記載の方法。
- 前記少なくとも1種の化合物がSiDxH4−x、Si2DyH6−y、PDzH3−z、SiCl2DH、SiCl2D2、SiO4C8DqH20−q(式中、x=1〜4、y=1〜6、Z=1〜3、及びq=1〜20)からなる群から選択される化合物であることを特徴とする請求項1に記載の方法。
- 前記層が酸化物材料を含むことを特徴とする請求項1に記載の方法。
- 前記層が蒸着処理中に同時に蒸着及びエッチングされることを特徴とする請求項1に記載の方法。
- 前記蒸着によって実質的に平坦な面が作製されることを特徴とする請求項1に記載の方法。
- 前記少なくとも1種の化合物が混合物から成り、前記混合物がさらにO2及びO3の少なくとも一方を含むことを特徴とする請求項1に記載の方法。
- 基板の充填部分を作製する方法であって、
重水素同位元素置換基をもつ少なくとも1種の化合物と、D2 及びHDの少なくとも1種と、を含むガス混合物の存在下で、基板上への材料の蒸着及びエッチングを同時に行うことを特徴とする方法。 - 前記少なくとも1種の化合物が第一の重水素化合物及び第二の重水素化合物を含むことを特徴とする請求項8に記載の方法。
- 前記ガス混合物はさらにDT、T2及びTHの少なくとも1種を含むことを特徴とする請求項8に記載の方法。
- 前記ガス混合物はさらにH2 を含むことを特徴とする請求項10に記載の方法。
- 前記充填部分は、トレンチ及び素子間空間からなる群から選択される少なくとも一つの形状を含むことを特徴とする請求項8に記載の方法。
- 前記少なくとも一つの形状の1または2以上が1:1よりも大きなアスペクト比を持つことを特徴とする請求項12に記載の方法。
- 前記少なくとも一つの形状の1または2以上が2:1よりも大きなアスペクト比を持つことを特徴とする請求項12に記載の方法。
- 前記少なくとも一つの形状の1または2以上が3:1よりも大きなアスペクト比を持つことを特徴とする請求項12に記載の方法。
- 前記少なくとも一つの形状の1または2以上が4:1よりも大きなアスペクト比を持つことを特徴とする請求項12に記載の方法。
- 前記少なくとも一つの形状の1または2以上が5:1よりも大きなアスペクト比を持つことを特徴とする請求項12に記載の方法。
- 前記少なくとも一つの形状の1または2以上が10nm未満の幅を持つことを特徴とする請求項12に記載の方法。
- 蒸着がでこぼこ状の形状上に対して行われ、前記蒸着によって前記でこぼこ状の形状よりもより滑らかな面が形成されることを特徴とする請求項8に記載の方法。
- 前記材料が、硼素/リン酸のドープされた酸化珪素、フッ素のドープされた酸化珪素、リン酸のドープされた酸化珪素、硼素のドープされた酸化珪素及び未ドープの酸化珪素からなる群から選択されることを特徴とする請求項8に記載の方法。
- 高密度プラズマ化学蒸着中における総合蒸着速度の不均一の程度を減少させる方法であって、
前記蒸着中に、DH及びD2の一方又は両方と、重水素同位元素置換基を含む少なくとも1種の化合物と、を含むガス混合物を与える工程を含み、
前記総合蒸着速度は、前記材料の蒸着の速度の、該蒸着とは同時に生じる前記材料のエッチングの速度に対する比によって定義される、方法。 - 前記蒸着がウェハーの表面全域において為され、前記ウェハー表面の中心点における前記総合蒸着速度が前記ウェハー表面の縁部における総合蒸着速度と実質的に同等であることを特徴とする請求項21に記載の方法。
- 前記中心点における前記総合蒸着速度が、前記中心点と前記ウェハー表面縁部にある点との間の線に沿った実質的にすべての点における総合蒸着速度と実質的に同等であることを特徴とする請求項22に記載の方法。
- 前記蒸着がウェハーの表面全体において起こり、前記ウェハー表面全体のいずれかの点における総合蒸着速度が、前記ウェハー表面全体の他のすべての点における総合蒸着速度と実質的に同等であることを特徴とする請求項21に記載の方法。
- 前記蒸着は1または2以上の間隙をもつ基板上への絶縁材料の蒸着を含み、前記蒸着によって前記絶縁材料で前記1または2以上の間隙が充填されて実質的に空隙のない充填間隙が形成されることを特徴とする請求項21に記載の方法。
- 前記総合蒸着速度が、 1 Hの形態の二原子水素と前記少なくとも1種の化合物とを用い、それ以外は同一の蒸着条件下で行った場合に生ずる総合蒸着速度よりも減じられることを特徴とする請求項21に記載の方法。
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US10/669,671 US7056833B2 (en) | 2003-09-23 | 2003-09-23 | Methods of filling gaps and methods of depositing materials using high density plasma chemical vapor deposition |
PCT/US2004/030875 WO2005031841A2 (en) | 2003-09-23 | 2004-09-20 | Methods of filling gaps and methods of depositing materials using high density plasma chemical vapor deposition |
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EP (1) | EP1665354B1 (ja) |
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US8021992B2 (en) * | 2005-09-01 | 2011-09-20 | Taiwan Semiconductor Manufacturing Co., Ltd. | High aspect ratio gap fill application using high density plasma chemical vapor deposition |
US20130288485A1 (en) * | 2012-04-30 | 2013-10-31 | Applied Materials, Inc. | Densification for flowable films |
US20140070225A1 (en) * | 2012-09-07 | 2014-03-13 | Apple Inc. | Hydrogenation and Crystallization of Polycrystalline Silicon |
US9401423B2 (en) * | 2013-07-16 | 2016-07-26 | Globalfoundries Inc. | Enhancing transistor performance and reliability by incorporating deuterium into a strained capping layer |
CN105825906B (zh) * | 2016-03-30 | 2017-12-08 | 中国科学院上海应用物理研究所 | 一种放射性含氟废液水泥固化方法 |
US11508584B2 (en) | 2019-06-17 | 2022-11-22 | Applied Materials, Inc. | Deuterium-containing films |
CN114761612A (zh) * | 2019-12-02 | 2022-07-15 | 朗姆研究公司 | 原位pecvd覆盖层 |
US20240087882A1 (en) * | 2022-09-09 | 2024-03-14 | Applied Materials, Inc. | Fluorine-doped silicon-containing materials |
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JP2933177B2 (ja) * | 1991-02-25 | 1999-08-09 | キヤノン株式会社 | 非単結晶炭化珪素半導体、及びその製造方法、及びそれを用いた半導体装置 |
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EP1665354A2 (en) | 2006-06-07 |
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US7202183B2 (en) | 2007-04-10 |
EP1665354B1 (en) | 2011-12-14 |
KR20060095972A (ko) | 2006-09-05 |
TWI248638B (en) | 2006-02-01 |
ATE537556T1 (de) | 2011-12-15 |
CN100454497C (zh) | 2009-01-21 |
JP2007507111A (ja) | 2007-03-22 |
WO2005031841A3 (en) | 2005-09-01 |
US7056833B2 (en) | 2006-06-06 |
US20050196976A1 (en) | 2005-09-08 |
US7273793B2 (en) | 2007-09-25 |
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