TW451357B - Manufacturing method of barrier film and the barrier film - Google Patents
Manufacturing method of barrier film and the barrier film Download PDFInfo
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- TW451357B TW451357B TW089102530A TW89102530A TW451357B TW 451357 B TW451357 B TW 451357B TW 089102530 A TW089102530 A TW 089102530A TW 89102530 A TW89102530 A TW 89102530A TW 451357 B TW451357 B TW 451357B
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- Prior art keywords
- gas
- nitrogen
- reducing gas
- barrier film
- film
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- 230000004888 barrier function Effects 0.000 title claims description 65
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000007789 gas Substances 0.000 claims abstract description 180
- 150000004767 nitrides Chemical class 0.000 claims abstract description 56
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 41
- 239000000758 substrate Substances 0.000 claims description 41
- 238000002844 melting Methods 0.000 claims description 39
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 30
- 230000008018 melting Effects 0.000 claims description 27
- -1 gold nitride nitride Chemical class 0.000 claims description 20
- 229910052786 argon Inorganic materials 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 13
- 239000010931 gold Substances 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 239000003085 diluting agent Substances 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229940098465 tincture Drugs 0.000 claims description 2
- 239000010408 film Substances 0.000 abstract description 136
- 239000010409 thin film Substances 0.000 abstract description 23
- 230000015572 biosynthetic process Effects 0.000 abstract description 10
- 230000002829 reductive effect Effects 0.000 abstract description 5
- 239000003870 refractory metal Substances 0.000 abstract 4
- 239000002243 precursor Substances 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 description 33
- 239000010937 tungsten Substances 0.000 description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 18
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 18
- 229910052802 copper Inorganic materials 0.000 description 17
- 239000010949 copper Substances 0.000 description 17
- 239000004065 semiconductor Substances 0.000 description 12
- 210000002381 plasma Anatomy 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 7
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 229910000077 silane Inorganic materials 0.000 description 7
- NXHILIPIEUBEPD-UHFFFAOYSA-H tungsten hexafluoride Chemical compound F[W](F)(F)(F)(F)F NXHILIPIEUBEPD-UHFFFAOYSA-H 0.000 description 7
- 230000002079 cooperative effect Effects 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 229910001020 Au alloy Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000003353 gold alloy Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- GZRDJPGWGMWUQZ-UHFFFAOYSA-N [Re].[Au] Chemical group [Re].[Au] GZRDJPGWGMWUQZ-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- XQVKLMRIZCRVPO-UHFFFAOYSA-N 4-[(2-arsonophenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonic acid Chemical compound C12=CC=C(S(O)(=O)=O)C=C2C=C(S(O)(=O)=O)C(O)=C1N=NC1=CC=CC=C1[As](O)(O)=O XQVKLMRIZCRVPO-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229920006771 PE-C Polymers 0.000 description 1
- 241000679125 Thoron Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- WHIQUFMKNZVNOX-UHFFFAOYSA-N [W].[W].[Au] Chemical compound [W].[W].[Au] WHIQUFMKNZVNOX-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
- 230000001934 delay Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
Classifications
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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- 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
- H01L21/76838—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 conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- 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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76807—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 by forming openings in dielectrics for dual damascene structures
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- 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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76814—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 by forming openings in dielectrics post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- 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
- H01L21/76838—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 conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrodes Of Semiconductors (AREA)
- Chemical Vapour Deposition (AREA)
Description
4SU35I A7 B7 五、發明說明(1) 本發明係有關半導體裝置用金屬配線之技術領域,尤 指設於銅配線膜及絕緣膜之間的障壁膜及設於含有s i、 G a A s等的膜及金靥配線之間,防止矽化之障壁膜及高 介電體膜或強介電膜與電極間之障壁膜之製造方法》 習知技術 近年,半導體裝置方面係被日益要求有高速動作,因 此以低電阻之銅配線取代鋁配線乃被硏究著。 然而,銅在半導體結晶中爲雜質,而且在矽結晶中或 氧化矽中的擴散係數較大的問題存在。因此,於障壁膜採 用氮化鎢薄膜等的高熔點金屬之氮化物薄膜,於矽基板或 氧化矽薄膜表面上形成障壁膜後,於其表面上形成銅配絲 膜- 爲形成障壁膜,採用著濺鍍法或熱CVD法或PE -C VD法,濺鍍法之情形係以高熔點金屬爲靶材,熱 CzlD法之情形,係利用下述的還原反應形成氮化物薄膜 3爲鎢之情形,(2)式爲鈦之情形。
<請先《讀背面之注意事項再填寫本頁) 裝·! -Ϊ---— 訂----- 0L, 經濟部智慧財產局B工滇费合作社印製 4WF6 + 8NH3^ 2WjN + 24HF + 3N2 TiCh+—NH3— TiN + 2HCl + l/2Hr (1) (2) 形成多層配線之半導體裝置的情形,有挾持層間絕緣 膜並使銅配線層合的必要,惟在被要求高速動作之半導體 I 裝匱,由於可減少信號之傳達延遲,故除銅配線之電阻値 本紙張尺度適用中_國家標準(CNS)A4规格(210 X 297公釐) A7 B7 451357 五、發明說明(2 > 之外,有減少層間絕緣膜之容量値或障壁膜之電阻値的必 要。具體而言,在障壁膜方面,乃有200〜 3 0 0 izDcm之低電阻被求出。 在濺鍍法,雖可形成低電阻之氮化按?薄膜,惟階段遮 覆率(step coverage )低劣,於高長徑比(aspect ratio ) 之貫穿孔(via hole )內未能均勻的形成障壁膜。 另一方面,在熱C V D法之情形,雖於貫穿孔內可形 成均勻的障壁膜,惟低介電常數之層間絕緣膜若予曝露於 5 0 0 °C以上的高溫時,則介電常數會變高,故在熱 CVD法之成膜溫度以40 0°C〜5 00eC成爲上限,在 其成膜溫度,例如氮化鎢之薄膜的情形,比電阻亦終會成 爲數千//Qcm,未能獲得低電阻之障壁膜。 不論C VD法*若依已使用有機會屬之MO C VD方 法,或電漿CVD法,則在低溫可形成低電阻之障壁膜, 惟有機金屬係高價的,另一方面,電漿CVD法,在步驟 遮覆率有較低劣的問題存在•以至未採用。 發明欲解決的課顆 本發明係爲解決上述習知技術之不合適而完成者,其 目的係提供低比電阻且步驟遮覆率良好的障蔽膜《 解決課題而採的手段 _ 本發明之發明人等,在分析以習用的熱CVD法形成 的高熔點金屬之氮化物薄膜時,發現高熔點金屬會呈不足 本紙張尺度適用尹國S家標準(CNS)A4規格(210 X 297命釐) (靖先Μ讀背面之注意事項再填寫本1}
裝 ill·!· — 訂 I 經濟部智慧財產局員工消费合作社印製 A7 451 357 __B7_ 五、發明說明(3) 的狀態。例如鎢之情形,在習知技術之氮化鎢並不成爲化 學量論的組成(W2N),而成爲WxN (X爲約1 . 5至 1 · 6)。此種氮化物中的金羼原子之不足被視作會使氮 化物薄膜之結晶性惡化,提高電阻値之原因。 本發明係基於上述見解而予完成者,由於高熔點金屬 之氮化物之組成接近化學量論的値,申請專利範圍第1項 記載之發明,係於真空氣圍氣中配置基板,於前述真空氣 圍氣中導入化學構造中有高熔點金屬之原料氣體|與具有 氮原子•還原性含氮還原氣體,於前述真空氣圍氣中導入 不具有氮原子之輔助還原氣體爲特徵之障壁膜製造方法。 申請專利範圍第2項記載之發明,爲申請專利範圍第 1項之障壁膜製造方法,具有將前述輔助還原氣體與前述 原料氣體及前述含氮氣體同時導入前述真空氣圍氣中的步 驟之障壁膜製造方法。 申請專利範圍第3項記載之發明,爲申請專利範圍第 2項之障壁膜製造方法,具有不導入前述輔助還原氣體, 將前述原料氣體及前述含氮還原氣體導入前述真空氣圍氣 中的步驟之障壁膜製造方法。 ‘ 申請專利範圍第4項記載之發明,爲申請專利範圍第 2項之障壁膜製造方法,以同時導入前述輔助還原氣體及 前述含氮還原氣體與前述原料氣體之際對前述原料氣體之 流量以一倍以上的流量導入前述含氮還原氣體,對前述含 氮還原氣體之流量以一倍以上十倍以下的流S導入前述輔 助還原氣體爲特徵之障壁膜之製造方法。 本纸張尺度適用中國國家標準(CNS)A4規格(210 X 297公爱) (諝先閲讀背面之注意Ϋ項再填寫本頁> ------ 訂! 雙· 經濟郤智慧財產局昊工消费合作社印製 -6 - 經濟部智慧財產局具工消费合作社印製 4 513 5 7 a? __B7_ 五、發明說明(4 ) 申請專利範圍第5項記載之發明,爲申請專利範圍第 1項之障壁膜之製造方法,以同時導入前述輔助還原氣體 及前述含氮還原氣體與前述原料氣體之際’對前述原料氣 體之流量以一倍以上五倍以下的流量導入前述含氮還原氣 體,對前述含氮還原氣體之流量以二倍以上十倍以下的流 量導入前述輔助還原氣體爲特徵之障壁膜之製造方法。 申請專利範圍第6項記載之發明,爲申請專利範圍第 2項之障壁膜之製造方法,以同時導入前述輔助還原氣體 及前述含氮還原氣體與前述原料氣體之際,對具有前述高 熔點金屬之原料氣體之流量,以一倍以上十五倍以下的流 量導入前述輔助還原氣體之流量的障壁膜之製造方法。 申請專利範圍第7項記載之發明,爲申請專利範圍第 1項之障壁膜之製造方法,以在使前述高熔點金屬之氮化 物薄膜成長之際,導入不與前述高熔點金靥反應的稀釋氣 體及化學構造中具有氧原子之氣體,使前述真空氣圔氣之 壓力設成1 P a以上1 0 0 P a以下的範圍爲特徵之障壁 膜之製造方法。 申請專利範圍第8項記載之發明,爲障壁膜之製造方 法,於基板上形成高熔點金靥之氮化物薄膜的障壁膜之製 造方法,氬氣,氮氣,氬氣之中•於已混合一種以上的氣 體之電漿,或該電漿及電漿狀態之氫氣,氮氣之電漿內, 已曝露前述基板表面後,於基板表面形_成前述高熔點金靥 之氮化物薄膜爲特的障壁膜製造方法。 申請專利範圍第9項記載之發明,爲具有高熔點金屬 本紙張尺度適用中a國家標準(CNS)A4规格(210 X 297公釐) _1!1!11! — — — 3-11 !1 — „ ^ίν— (請先閱讀背面之注項再填寫本頁) A7 451357 B7___ 五、發明說明(5 ) 之氮化物薄膜的障壁膜,前述氮化物薄膜係前述高熔點金 靥之含有率被指較化學量論組成比大爲特徵之障壁膜。 申請專利範圍第1 0項記載之發明,爲具有於基板上 形成的高熔點金屣之氮化物薄膜,防止於該氮化物薄膜上 形成的配線薄膜中之金屬的擴散之障壁膜,前述氮化物膜 並不含有矽爲特徵之障壁膜》 本發明係如上述構成般,於真空氣圍氣中導入具有高 熔點金屬原子之原料氣及含氮之還原氣體,以含氮還原氣 體還原原料氣體並使析出高熔點金屬之氮化物,於真空氣 圍氣中導入不含氮原子之輔助還原氣體,作成亦可析出高 溶點金屬。 又,藉由將稀釋氣體及構造中有氧氣等氧原子之氣體 與原料氣體同時導入,與不導入構造中有氧原子之氣體的 情形比較,可提高障蔽性,可形成比電阻更低的氮化膜》 使在低溫析出高熔點金饜之氮化物的情形,氮化物薄 膜中的高熔點金靥不足,惟因以輔助還原氣體析出的高熔 點金靨原子補充不足分,故所得的氮化物薄膜,係高熔點 金屬之含有率亦較化學量論的組成或化學量論的組成比成 爲較大的組成比。 金屬之析出量對氮化物之析出量係較少即可,惟與含 氮化還原氣體之反應性相比,輔助還原氣體之反應性較低 ,故若與析出量相比時,則有導入較多量的必要。 另一方面,輔助還原氣體之導入量若過多時.,則高熔 點金屬之含有率變成過大,亦較氮化物薄膜會接近高熔點 (請先閱讀背面之沒意事項再填寫本頁) 裝 i I l· I I — I 訂·! - ^#lv— 經^部智慧財產局員工消费合作社印製 本纸張尺度適用中B因家標準(CNS)A4规格<210 X 297公羞) -8- 451357 A7 ___B7______ 五、發明說明(6 ) 金屬之特性6又,使用已含有S i之輔助還原氣體之情形 ,有氮化物薄膜中的S i之含有率會上升的問題。因此,. 含氮還原氣體及輔助還原氣體,稀釋氣體,構造中具有氧 原子之氣體之導入量則有適當的範圔。 例如,將氨氣(含氮還原氣.體)對六氟化錫氣體(原 料氣體)之導入量設定成1 . 0倍,2 · 6倍’ 5 . 0倍 時,可使矽烷氧體(輔助還原氣體)對氨氣之導入量變化 〇 其結果示於第5圖之圖形。橫軸係將氨氣之導入量設 成1 . 0時的矽烷氧體之導入量,縱軸則表示已予形成的 氮化鎢薄膜之比電阻。 由此圖形得知,含氮還原氣體之導入量,對原料氣體 之導入量在1倍以上,輔助還原氣體之導入量,對含氮還 原氣體之導入量在2倍以上10倍以下之範圍爲佳。 又,障壁膜之實用的比電阻爲約2 0 0〜3 0 0 w Ω cm,故由此圖形得知對原料氣體之流量,以1倍以上 5倍以下的流量範圔導入含氮還原氣體,對含氮還原氣體 之流量以2倍以上5倍以下之流童範圍導入輔助還原氣體 即可》 第6圖係在形成高熔點金屬氮化物之際,表示出改變 原料氣體及輔助還原氣體之流量比的情形之各自的高熔點 金屬氮化物所含的元素之含有率者。在此使用WF 6作爲原 料氣體,使用S i H4作爲輔助還原氣體。又,在此氧氣係 以1 . 5sccm導入著。 {請先闓讀背面之注意事項再填寫本頁) 裝 *11!1_ 訂 *!1
n I 經濟部智慧財產局員工消费合作社印製 本纸張尺度適用中思國家棵準(CNS)A4規格(210 X 297公釐) -9- 經濟部智慧財產局員工消费合作社印製 45ί357 Α7 _;____Β7五、發明說明(7 ) * S i H4/WF6之値若成爲1 5以上時,則由此圖形 可得知於高熔點金屬氮化物(在此爲WN)中含有Si » 又,S iH4/WF6之値在1倍以上1 5倍以下,則顯示 出形成有Wx N膜。 第7圖爲由本發明以4 0 Ot:之成膜溫度形成的氮化 鎢薄膜之奧格(Auger )分光分析結果。橫軸之濺鍍時間係 表示由表面算起的深度。可得知大量含有鎢(對氮原子1 ,有鎢原子約4.0),有輔助還原氣體導入之效果。 大氣中取出時因障壁膜受氧化,故可於表面上觀察有 氧氣。膜中雖可觀察矽之存在,惟在測定界限下,係測定 誤差。 如此若將較化學量論的組成,以可維持障壁膜之範圍 增大氮化物薄膜中的高熔點金颶之含有率時,可降低比電 阻。 在CMP製程方面,氮化物薄膜及基板表面間之較高 的附著性雖可予求出,惟在形成障壁膜之前*以氬氣,氮 氣,氬氣之中一種以上的氣體之電漿,或已混合前述電漿 及電漿狀態之氫,氮的電漿淸淨基板表面時,則於其表面 上形成的氮化物薄膜,以膠帶試驗(taping test )即使對每 1 cm. 2施加1 kg之負載亦不剝除,可得以CMP製程可 使用的附著性。 又,若於氮化物薄膜中含有矽時*則鎢等高熔點金靥 及矽在高溫反應,使矽化鎢等矽化合物生成,比電阻會增 大。本發明之氮化物薄膜,因不含有矽,故不生成矽化合 — — — —— — — It — I I I 1 I I 111111 ^^ΖΕν· <請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中0 a家標準(CNS)A4规格(210 X 297公釐) -10- A7 B7 451357 五、發明說明(8) 物,比電阻以較小値安定著β 供比較用,於第8圖*表示出利用習知技術之C VD 法,在4 0 Ot的成膜溫度形成的氮化鎢薄膜之奧格分光 分析結果。對氮原子1,鎢原子爲約1 . 7,鎢原子則變 小,比電阻亦在1 0 0 0 // Ω c m以上而成高電阻。 對在形成高熔點金羼之氮化物薄膜時之壓力範圍,以 IPa以上l〇〇〇〇Pa以下較適當,較宜爲IPa以 上1 0 0 P a以上即可》 發明之奮施形龍 採用圖面說明本發明之實施形態。 第1圖(a)〜(d)爲表示本發明之一實施形態之 工程圖。 第1圖(a )之圖號2 0係表示處理對象物之基板。 該基板2 0係具有由矽單晶而成的半導體基板2 1,於其 表面上形成有基底膜2 2及由氧化矽而成的絕緣膜2 3。 於基底及靡緣膜2 3方面,於底面3 2上形成有半 導體基板2 1 #1"經予露出的孔3 1。 於此基板2 0表面上形成障壁膜。 參閱第4圖,圖號5 0係表示可實施本發明之CVD 裝置。此CVD裝置50係具有真空槽51,於該真空槽 5 1內連接有未交圖示的搬出入室於真空槽5 1之底面 側配置有基板支持具5 3,於天花板側則配置有電極5 5 本紙張尺度適用中困國家镖準(CNS)A4規格(210 * 297公蹵) ^ΛΙ—r -51— — — — — —— · I I I I Γ I allllllf— {請先Μ讀背面之注f項存瓖寫本W ) 經濟部智慧財產局員工消费合作社印製 經濟部智慧財產局員工消费合作社印製 4 Si357 A7 __B7_五、發明說明(9 ) 在此CVD裝置5 0,於基板2 0上形成有障壁膜之 情形,首先,將基板2 0搬入搬出入室內,使搬出入室及 真空槽5 1內成爲真空氣圍氣後,開啓真空槽5 1及搬出 入室之間之閘閥5 2,將基板2 0搬入CVD裝置5 0內 〇 於基板支持具5 3上設有基板升降裝置5 4,使該基 板升降機構5 4動作,將經予搬入真空槽5 1內的基板載 置於基板支持具5 3上。第4圖係表示該狀態之基板。 其次,通電至基板支持具5 3內之加熱器,使基板 2 0升溫至3 0 CTC以上40 0 t以下的溫度。 於真空槽5 1內設有氣體導入系5 7,由該氣體導入 系5 7以指定流量將氬氣及氨氣導入真空槽5 1內,若於 基板支持具5 3及電極5 5之間施加高頻電壓時,則由氨 氣可生成電離狀態之氮及氬。此時,已電離的氬氣係成爲 稀釋氣體,則使該等已混合的電漿形成。 基板2 0表面之絕緣膜2 3係鄰近電極5 5而予對向 配置著•藉由經予生成的電漿,絕緣膜2 3表面,孔3 1 內之半導體基板2 1表面係予曝露於其混合電漿中,使已 附著的有機物分解(淸淨)。 在此的淸淨條件,爲氨氣流量7 5 s c c m,氬氣流 量24〇sccm,壓力4〇Pa,高頻電功100W» 進行約5 0秒之淸淨後,停止施加高頻_電壓,使電漿消滅 =且在此已採用氬氣(A r氣),惟亦可採用氨氣(N2) ,氦氣(He )取代氬氣,亦可採用該等混合氣》 (請先Μ讀背面之沒意事項再填寫本頁> 裝 ill· — — — ·訂 _!!
^1 .^1 ^1 I 本紙張尺度適用t國困家標準<CNS)A4規格<210 X 297公釐) -12- 4^1357 Α7 Β7 五、發明說明(1〇) 其次,改變上述氨氣流量及氬氣流量,同時加入氨氣 及氬氣,由氣體導入系5 7導入六氟化鎢氣體(WF6氣) 及矽烷氧體及氧氣。 氨氣之反應性與矽烷氧體比較係較高,故六氟化鎢氣 體成爲原料氣,氨氣成爲含氮還原氣,進行原料氣之還原. 反應。氨氣因具有氮,故藉由上述(1 )式之還原反應, 於絕緣膜2 3表面及孔3 1內之半導體基板2 1表面上析 出氮化鎢- 經予導入真空槽5 1內之矽烷氧體亦具有還原性,惟 氨氣相比,反應性較低*故成爲輔助性的還原氣體(輔助 還原氣體)。又,矽烷氧體係不具有氮原子,故以下式( 3 )之反應還原原料氣^,使析出金屬鎢》 WFs+3/2SiH4-* W + 3/2SiF4 + 3H2.........(3) 若析出金屬鎢時,則會爲成長中的氮化鎢薄膜所包圍 。因此,於鎢之氮化物薄膜之成長中,金屬鎢係予供給的 ,故在低溫成長的情形之鎢之不足分經予補償,已近似化 學量論組成之組成,或形成有亦較化學量論組成比大的高 熔點金屬之含有率的組成之障壁膜(氮化鎢薄膜)。 至於鎢之氮化物薄膜之成長條件之一例,有基板溫度 380 °C,原料氣體流量5 s c cm,含氮之還原氣體流 量3 s c cm,輔助還原氣體流量39 s c cm >氣氣流 量240 s c cm,氧氣導入貴1 _ 5 s c cm,壓力 (請先閲讀背面之注意事項再填窝本頁) 裝! —ί— 訂! - 經濟部智慧財產局員工消费合作社印製 本紙張尺度適用中國國家標準(CNSXA4規格(210 X 297公* ) •13- 4 經濟部智慧財產局具工消费合作社印紫 51357 A7 __B7_五、發明說明(11 ) 4 0 P a 〇 若對含氮還原氣體及輔助還原氣體之原料之還原反應 進行指定時間時,則如第1圖(b )之圖號2 4所示,於 絕緣膜2 3及半導體基板2 1表面上形成有鎢之氮化物薄 膜。 其次,停止含氮還原氣體之導入,若使輔助還原性氣 體之流量增加時,由於輔助還原性氣體使原料氣體還原, 析出金靥鎢》第1圖(c )之圖號2 5係表示已於氮化物 薄膜2 4表面上成長的金·屬鎢薄膜。 至於金屬鎢薄膜2 5之形成條件之一例,爲基板溫度 380 °C,原料氣體導入量20 s c cm,輔助還原氣體 導入量5 s c cm *稀釋氣體(氬氣)導入量 240 s c cm,壓力 4〇Pa.a 氮化物薄膜2 4係對銅具有高障壁性,惟若與高熔點 金屬相比,則比電阻較高》另一方面,金靥鎢薄膜2 5等 的高熔點金屬之薄膜對銅之障壁性雖低,但比電阻卻較氮 化物薄膜2 4非常小。 因此,如上述般以氮化物薄膜2 4爲障壁膜,使於其 上層合高熔點金屬薄膜時,'可維持對銅之高障壁性,可降 低比電阻値。 又,反之於高熔點金屬薄膜上亦可形成氮化物薄膜, 亦可形成氮化物薄膜單層。 、 以上述條件使成長鎢薄膜2 5 2 0〜3 0.秒後,將 基板2 0搬出至C VD裝置5 0之外部上’利用電鍍法或 111! I — — — — — * I I l· I I l· I 訂·11! (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS)A4規格<210 X 297公釐> -14- 357 357 經濟部智慧財產局貝工消費合作社印製 Α7 __Β7__ 五、發明說明(12) 濺鍍法等,使於高熔點金牖薄膜2 5表面上成長銅薄膜。 第1圖(d)之圖號26係表示其銅薄膜。 形成銅薄膜2 6後,利用CMP法進行表面硏磨,若 硏磨去除絕緣膜2 3上之銅薄膜2 6及氮化物薄膜2 4與 金屬薄膜2 5時,於孔3 1或溝內可形成以銅薄膜2 6所 構成的配線膜2 7。其配線膜2 7及半導體基板2 1之間 ,與絕緣膜2 3之間存在氮化物薄膜2 4,形成銅未擴散 般》 其次,如第2圖(f),使基底膜41 *43與絕緣 膜42,44各交互配層合二層,如第2圖(g),將配 線膜2 7表面開口 *形成孔或溝。第2圖(g )之圖號 3 2係表示著溝或孔。於此溝或孔3 2底面露出著配線膜 2 7。 其次,將基板2 0搬入CVD裝置5 0內,以與第1 圖(b )所示的氮化物薄膜2 4相同的條件形成氮化物薄 膜(氮化鎢薄膜)。 第2圖(h )之圖號3 3係表示其氮化物薄膜*溝或 孔3 2內,與絕緣膜4 4及配線膜2 7表面係以氮化物薄 膜3 3遮蓋著。 其次,利用電鍍法或濺鍍法,如第3圖(i )所示般 使銅薄膜3 4成長時,則溝或孔3 2內係藉由銅薄膜3 4 予以塡充。 最後,若利用CMP法進行表面硏磨時,則藉由經予 塡充於溝或孔3 2內的銅薄膜3 4,如第3圖(j )所示 本紙張尺度適用中國國家標準(CNS>A4規格(210 * 297公釐) •15- <諳先《讀背面之注$項再填寫本買) 裝.! Γ II !訂_! -雙_
4S 357 經濟部智慧財產局負工消费合作社印製 A7 B7 五、發明說明(13) ,形成有配線膜3 5 » 於此配線膜3 5及絕緣膜42,44之間配置有障壁 膜3 3,故於絕緣膜42,44中形成銅未擴散著。 以上係於鎢,含氮還原氣體內採用氨氣。於輔助還原 氣體內採用矽烷氧體,說明形成鎢之氮化物薄膜的情形, 惟原料氣體方面除六氟化鎢氣體之外,可採用W ( C 0) 6 氣體。 又,採用鎢以外的高熔點金靥,形成該等的氮化物薄 膜作爲障壁膜的情形亦包含在本發明內》對採用鈦(T i )作爲高熔點金靥的情形,亦將T i F4或T i C i 4等鹵 化鈦氣體作成原料氣體,採用鉅(T a )於高熔點金屬的 情形’可TaC 等的_化钽氣體等作成原料氣體。又亦 可將Mo或Nb之鹵化物作成原料氣體。 於具有氮原子之含氮還原氣體,除NH3氣體之外可採 用N2H4氣體,NF3氣體,N2〇氣體等。 至於不具有氮原子之輔助還原氣體,除S i H4氣體之 外,可採用1^2氣體,S i2H6氣體,PH3氣體, B 2 Η 6氣體等。 又,.至於稀釋氣體亦可使用氬氣,氮氣,氦氣,或該 等的混合氣體。 上述的淸淨條件爲其一例·亦可以其他條件進行,至 於其一例,即使在氬氣流量lOOsccm,壓力1 .〇 P a,高頻電功1 5 0W,淸淨時間6 〇秒亦可獲得相同 效果。 本紙張尺度適用111國國家標準<CNS)A4規格(210 X 297公« ) I-----------ί ---llil· — ^Ν·ι1 —----- {請先閱讀背面之注意事項再填寫本頁) 4 6 ? 357 A7 經濟部智慧財產局貝工消费合作社印製 ____B7_五、發明說明(14 ) 又,以該等條件進行淸淨後,再於氬氣中追加氨氣亦 可進行淸淨。 發明之功效 利用C VD法,在5 0 〇°C以下,尤指在3 5 0 °C〜 4 5 0 °C之溫度範圍可形成低比電阻之障壁膜(高熔點金 屬之氮化物薄膜)。因此不會對層間絕緣膜構成損害。 又,以熱C VD法形成氮化物薄膜•故步驟遮覆率良 好。 圖式之簡單說明 第1圖(a )〜(e )爲表示供說明本發明方法而用 的步驟圖之前半。 第2圖(f )〜(h)爲表示供說明本發明方法而用 的步驟圖之中半。 第3圖(i )〜(j )爲表示供說明本發明方法而用 的步驟圖之後半。 第4圖爲可實施本發明方法之CVD裝置之一例。 第5圖爲表示利用本發明方法形成的氮化物薄膜之比 電阻與原料氣體,含氮還原氣體及輔助還原氣體之流量間 的關係圖。 第6圖爲表示利用本發明方法形成的氮化鎢薄膜之S i H4/WF6流量比的元素含有率之變化匾。 第7圖爲表示利用本發明方法形成的氮化鎢薄膜之深 -1 — — — — — — — — — -11 l· <請先閲讀背面之注意事項再填寫本頁》 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -17- A7 _B7_ 五、發明說明(15 ) 度方向的組成圖。 第8圖爲表示習知技術之氮化鎢之深度方向的組成圖 明 說 之 。 圖 ο \1/ 〇 2 膜膜 壁線 障配 板: 基 5 *·2 膜 一 薄 :· 物 5 化 3 氦, 1 7 ;2 3 , 3 膜 , 薄 4 屬 2 金 ΧΪ/.. . * — — — — — — — —---^fv iltrlIl· — ^N-lm----^fv. <請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 -18- 本紙張尺度適用中國國家標準(CNS>A4規格(210 * 297公釐)
Claims (1)
- 5 3 A8B8C8D8 六、申請專利範圍 (锖先閱讀背面之注意事項再填寫本頁) 1 . 一種障壁膜之製造方法,其特徵在於真空氣圍氣 中配置基板,於前述真箜氣圍氣中導入化學構造中有高熔 點金屬之原料氣體,與具有氮原子,還原性含氮還原氣體 ,於前述真空氣圍氣中導入不具有氮原子之輔助還原性氣 體而成。 2 .如申請專利範圍第1項之障壁膜之製造方法,係 具有將前述輔助還原氣體與前述原料氣體及前述含氮氣體 同時導入前述真空氣圍氣中的步驟β 3 .如申請專利範圍第2項之障壁膜之製造方法,係 具有不導入前述輔肋還原氣體,將前述原料氣體及前述含 氮還原氣體導入前述真空氣圍氣中的步驟。 4. 如申請專利範圍第2項之障壁膜之製造方法,係 同時導入前述輔助還原氣體及前述含氮還原氣體與前述原 料氣體之際,對前述原料氣體之流量以一倍以上的流量導 入前述含氮還原氣體,對前述含氮還原氣體之流量以一倍 以上十倍以下的流量導入前述輔助還原氣體。 經濟部智慧財產局員工消费合作社印製 5. 如申請專利範圍第1項之障壁膜之製造方法,係 同時導入前述輔助還原氣體及前述含氮還原氣體與前述原 料氣體之際,對前述原料氣體之流量以一倍以上五倍以下 的流量導入前述含氮還原氣體*對前述含氮還原氣體之-流 量以二倍以上十倍以下的流量導入前述輔助還原氣體。 6 .如申請專利範圍第2項之障壁膜之製造方法,係 同時導入前述輔助還原氣體及前述含氮還原氣體與前述原 料氣體之際,對具有前述高熔點金靥之原料氣體之流量, 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公爱) .\Q . 5 3 A8B8C8D8 六、申請專利範圍 以一倍以上十五倍以下的流量導入前述輔助還原氣體之流 量9 <請先閱讀背面之注意事項再填寫本頁> 7.如申請專利範圍第1項之障壁膜之製造方法’係 在前述高熔點金屬之氮化物薄膜成長之際,導入不與前述 高熔點金屬反應的稀釋氣體及化學構造中具有氧原子之氣 體,使前述真空氣圍氣之壓力設成1 P a以上1 0 0 P a 以下的範圍。 8 .—種障壁膜之製造方法,係於基板上形成高熔點 金屬之氮化物薄膜的障壁膜之製造方法,其特徵在於氬氣 ,氮氣,氬氣之中,於已混合一種以上的氣體之電漿,或 該電漿及電漿狀態之氫氣,氮氣之電漿內,已曝露前述基 板表面後,於基板表面形成前述高熔點金屬之氮化物薄膜 而成。 9 . 一種障壁膜,係具有高熔點金颶之氮化物薄膜之 障壁膜,其特徵在於前述氮化物薄膜係前述高熔點金屬之 含有率被指較化學量論組成比大。 1 0 種障壁膜,係具有於基板上形成的高熔點金 經濟部智慧財產局貝工消費合作杜印製 屬之氮化物薄膜,爲在防止於該氮化物薄膜上形成的配線 薄膜中之金屬的擴散之障壁膜,其特徵在於前述氮化物膜 並不含有矽。 本纸張尺度適用令國國家標準(CNS>A4规格(210 * 297公釐) .2〇 -
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JP03804199A JP4009034B2 (ja) | 1999-02-17 | 1999-02-17 | バリア膜製造方法 |
JP19202699A JP3938450B2 (ja) | 1999-07-06 | 1999-07-06 | バリア膜製造方法 |
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US (2) | US6743718B1 (zh) |
EP (1) | EP1029943B1 (zh) |
KR (1) | KR100773280B1 (zh) |
DE (1) | DE60019660T2 (zh) |
TW (1) | TW451357B (zh) |
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JP5145225B2 (ja) * | 2006-07-14 | 2013-02-13 | 株式会社アルバック | 半導体装置の製造方法 |
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JP2009147137A (ja) * | 2007-12-14 | 2009-07-02 | Toshiba Corp | 半導体装置およびその製造方法 |
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2000
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- 2000-02-15 DE DE60019660T patent/DE60019660T2/de not_active Expired - Lifetime
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EP1029943B1 (en) | 2005-04-27 |
DE60019660T2 (de) | 2006-01-19 |
KR20000076639A (ko) | 2000-12-26 |
EP1029943A1 (en) | 2000-08-23 |
US20020123215A1 (en) | 2002-09-05 |
US6743718B1 (en) | 2004-06-01 |
DE60019660D1 (de) | 2005-06-02 |
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