JP4764155B2 - 絶縁膜形成方法、半導体装置の製造方法及びプログラム - Google Patents
絶縁膜形成方法、半導体装置の製造方法及びプログラム Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 65
- 239000004065 semiconductor Substances 0.000 title claims description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims description 191
- 230000008569 process Effects 0.000 claims description 42
- 230000001629 suppression Effects 0.000 claims description 41
- 239000000758 substrate Substances 0.000 claims description 36
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 229910052710 silicon Inorganic materials 0.000 claims description 30
- 239000010703 silicon Substances 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 26
- 239000001301 oxygen Substances 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 19
- 238000005229 chemical vapour deposition Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 11
- 230000001965 increasing effect Effects 0.000 description 11
- 238000002955 isolation Methods 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000001020 plasma etching Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- ZOCHARZZJNPSEU-UHFFFAOYSA-N diboron Chemical compound B#B ZOCHARZZJNPSEU-UHFFFAOYSA-N 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920001709 polysilazane Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- 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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31604—Deposition from a gas or vapour
- H01L21/31608—Deposition of SiO2
- H01L21/31612—Deposition of SiO2 on a silicon body
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- 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
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- H01L21/02104—Forming layers
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- H01L21/02123—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 containing silicon
- H01L21/02164—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 containing silicon the material being a silicon oxide, e.g. SiO2
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- 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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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
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- 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
- H01L21/02205—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 the layer being characterised by the precursor material for deposition
- H01L21/02208—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02211—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound being a silane, e.g. disilane, methylsilane or chlorosilane
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- 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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31604—Deposition from a gas or vapour
- H01L21/31625—Deposition of boron or phosphorus doped silicon oxide, e.g. BSG, PSG, BPSG
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
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- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Formation Of Insulating Films (AREA)
- Chemical Vapour Deposition (AREA)
Description
y ≧ 16x - 18 (1)
クラスタ発生条件下では、Siクラスタが発生するが、溝への埋め込み性能は高くボイドの発生は抑制される。
y < 16x - 18 (2)
クラスタ抑制条件下では、Siクラスタの発生は抑制されるが、溝への埋め込み性能が低下しボイドの発生の確率が高くなる。
上記のように、本発明の実施の形態を記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものであると理解すべきではない。この開示から当業者にはさまざまな代替実施の形態、実施例及び運用技術が明らかとなろう。
12…ドーム部
13…反応室
14…ベース部
16…電極
18…アンテナ
20a、20b…ノズル
22…排気システム
24、26…RF電源
28…ガス供給システム
29…供給ライン
30…制御装置
40…導電膜
42…保護膜
44、44a…溝
46…塗布型絶縁膜
48…絶縁膜
50…素子分離領域
60…Siクラスタ
62…傾斜側壁
Claims (5)
- 溝が形成された被処理基板をプラズマが生成される反応室に載置し前記溝に絶縁膜を埋め込む絶縁膜形成方法であって、
シリコン含有ガスの流量と酸素含有ガスの流量の和に対する前記シリコン含有ガス以外の水素含有ガスの流量の比を第1流量比、前記シリコン含有ガスの流量に対する前記酸素含有ガスの流量の比を第2流量比、前記第1流量比と第2流量比とのなす線形関係で規定される所定の臨界条件に対し、第1流量比を相対的に大きく第2流量比を相対的に小さく設定した流量条件をクラスタ発生条件、前記所定の臨界条件に対し、第1流量比を相対的に小さく第2流量比を相対的に大きく設定した流量条件をクラスタ抑制条件としたとき、
前記クラスタ発生条件で前記シリコン含有ガス、前記酸素含有ガス、及び前記水素含有ガスを含むプロセスガスを前記反応室中に導入することと、
前記クラスタ抑制条件で前記酸素含有ガス、並びに前記シリコン含有ガス及び前記水素含有ガスの少なくとも一方を含むプロセスガスを前記反応室中に導入する
こととを含むことを特徴とする絶縁膜形成方法。 - 前記プロセスガスを前記クラスタ発生条件で導入時に、前記被処理基板と前記プラズマ間にセルフバイアス電圧を印加するための第1バイアス電力を前記被処理基板に供給し、
前記プロセスガスを前記クラスタ抑制条件で導入時に、前記第1バイアス電力より小さい第2バイアス電力を前記被処理基板に供給する
ことを更に含むことを特徴とする請求項1に記載の絶縁膜形成方法。 - 前記第1流量比をy、前記第2流量比をxとして、前記クラスタ発生条件が、
y≧16x−18
の条件を満たし、且つ前記クラスタ抑制条件が、
y<16x−18
の条件を満たすことを特徴とする請求項1又は2に記載の絶縁膜形成方法。 - 半導体基板に溝を形成し、
前記半導体基板をプラズマが生成される反応室に載置し、
シリコン含有ガスの流量と酸素含有ガスの流量の和に対する前記シリコン含有ガス以外の水素含有ガスの流量の比を第1流量比、前記シリコン含有ガスの流量に対する前記酸素含有ガスの流量の比を第2流量比、前記第1流量比と第2流量比とのなす線形関係で規定される所定の臨界条件に対し、第1流量比を相対的に大きく第2流量比を相対的に小さく設定した流量条件をクラスタ発生条件、前記所定の臨界条件に対し、第1流量比を相対的に小さく第2流量比を相対的に大きく設定した流量条件をクラスタ抑制条件としたとき、前記クラスタ発生条件で前記シリコン含有ガス、前記酸素含有ガス、及び前記水素含有ガスを含むプロセスガスを前記反応室中に導入するステップ、及び、前記クラスタ抑制条件で前記酸素含有ガス、並びに前記シリコン含有ガス及び前記水素含有ガスの少なくとも一方を含むプロセスガスを前記反応室中に導入するステップを繰り返して、絶縁膜を前記溝に埋め込む
ことを含むことを特徴とする半導体装置の製造方法。 - シリコン含有ガスの流量と酸素含有ガスの流量の和に対する前記シリコン含有ガス以外の水素含有ガスの流量の比を第1流量比、前記シリコン含有ガスの流量に対する前記酸素含有ガスの流量の比を第2流量比、前記第1流量比と第2流量比とのなす線形関係で規定される所定の臨界条件に対し、第1流量比を相対的に大きく第2流量比を相対的に小さく設定した流量条件をクラスタ発生条件、前記所定の臨界条件に対し、第1流量比を相対的に小さく第2流量比を相対的に大きく設定した流量条件をクラスタ抑制条件としたとき、
前記クラスタ発生条件で前記シリコン含有ガス、前記酸素含有ガス、及び前記水素含有ガスを含むプロセスガスを反応室中に導入する手順と、
前記クラスタ抑制条件で前記酸素含有ガス、並びに前記シリコン含有ガス及び前記水素含有ガスの少なくとも一方を含むプロセスガスを前記反応室中に導入する手順
とを、プラズマ化学気相成長装置を制御するコンピュータに実施させるためのプログラム。
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JP2005352498A JP4764155B2 (ja) | 2005-12-06 | 2005-12-06 | 絶縁膜形成方法、半導体装置の製造方法及びプログラム |
TW095141990A TW200733198A (en) | 2005-12-06 | 2006-11-14 | Method for forming insulating film, method for manufacturing semiconductor device, and controlling program |
US11/633,484 US7446061B2 (en) | 2005-12-06 | 2006-12-05 | Method of forming insulating film, method of manufacturing semiconductor device and their controlling computer program |
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JP2008210909A (ja) * | 2007-02-26 | 2008-09-11 | Toshiba Corp | 半導体装置の製造方法 |
JP2009253195A (ja) * | 2008-04-10 | 2009-10-29 | Toshiba Corp | 半導体装置の製造方法、及び半導体装置 |
JP5616737B2 (ja) | 2009-11-20 | 2014-10-29 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理方法および基板処理装置 |
JP2013219198A (ja) * | 2012-04-09 | 2013-10-24 | Nissin Electric Co Ltd | 薄膜製造方法 |
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JP3508321B2 (ja) * | 1995-09-12 | 2004-03-22 | ソニー株式会社 | 絶縁膜の形成方法 |
JPH09260484A (ja) * | 1996-03-25 | 1997-10-03 | Toshiba Corp | 半導体装置の製造方法 |
US6660656B2 (en) * | 1998-02-11 | 2003-12-09 | Applied Materials Inc. | Plasma processes for depositing low dielectric constant films |
US6593247B1 (en) * | 1998-02-11 | 2003-07-15 | Applied Materials, Inc. | Method of depositing low k films using an oxidizing plasma |
JP4069966B2 (ja) * | 1998-04-10 | 2008-04-02 | 東京エレクトロン株式会社 | シリコン酸化膜の成膜方法および装置 |
US6596653B2 (en) * | 2001-05-11 | 2003-07-22 | Applied Materials, Inc. | Hydrogen assisted undoped silicon oxide deposition process for HDP-CVD |
US6596654B1 (en) * | 2001-08-24 | 2003-07-22 | Novellus Systems, Inc. | Gap fill for high aspect ratio structures |
JP4051619B2 (ja) * | 2002-09-17 | 2008-02-27 | キヤノンアネルバ株式会社 | シリコン酸化膜作製方法 |
US6897163B2 (en) * | 2003-01-31 | 2005-05-24 | Applied Materials, Inc. | Method for depositing a low dielectric constant film |
JP2005032844A (ja) * | 2003-07-09 | 2005-02-03 | Hitachi Ltd | 半導体装置の製造方法および製造装置 |
US7288205B2 (en) * | 2004-07-09 | 2007-10-30 | Applied Materials, Inc. | Hermetic low dielectric constant layer for barrier applications |
-
2005
- 2005-12-06 JP JP2005352498A patent/JP4764155B2/ja not_active Expired - Fee Related
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2006
- 2006-11-14 TW TW095141990A patent/TW200733198A/zh not_active IP Right Cessation
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JP2007158112A (ja) | 2007-06-21 |
TW200733198A (en) | 2007-09-01 |
US20070128865A1 (en) | 2007-06-07 |
TWI334621B (ja) | 2010-12-11 |
US7446061B2 (en) | 2008-11-04 |
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