JP2007520080A - 銅表面に対する表面還元、不動態化、腐食防止、および活性化のためのシステムおよび方法 - Google Patents
銅表面に対する表面還元、不動態化、腐食防止、および活性化のためのシステムおよび方法 Download PDFInfo
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- JP2007520080A JP2007520080A JP2006551095A JP2006551095A JP2007520080A JP 2007520080 A JP2007520080 A JP 2007520080A JP 2006551095 A JP2006551095 A JP 2006551095A JP 2006551095 A JP2006551095 A JP 2006551095A JP 2007520080 A JP2007520080 A JP 2007520080A
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- 238000000034 method Methods 0.000 title claims abstract description 94
- 229910052802 copper Inorganic materials 0.000 title claims description 39
- 239000010949 copper Substances 0.000 title claims description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 38
- 238000002161 passivation Methods 0.000 title description 13
- 230000009467 reduction Effects 0.000 title description 2
- 230000004913 activation Effects 0.000 title 1
- 238000001994 activation Methods 0.000 title 1
- 238000005536 corrosion prevention Methods 0.000 title 1
- 238000006722 reduction reaction Methods 0.000 title 1
- 239000000758 substrate Substances 0.000 claims abstract description 61
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000001257 hydrogen Substances 0.000 claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 31
- 239000002344 surface layer Substances 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims description 44
- 238000005530 etching Methods 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 6
- 239000005751 Copper oxide Substances 0.000 claims description 6
- 229910000431 copper oxide Inorganic materials 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000012159 carrier gas Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229910003321 CoFe Inorganic materials 0.000 claims description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 3
- 229910004166 TaN Inorganic materials 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 150000004820 halides Chemical class 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052754 neon Inorganic materials 0.000 claims description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 238000007788 roughening Methods 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052724 xenon Inorganic materials 0.000 claims description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000010899 nucleation Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 26
- 238000004140 cleaning Methods 0.000 description 11
- 239000006227 byproduct Substances 0.000 description 7
- 238000001020 plasma etching Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- AIRCTMFFNKZQPN-UHFFFAOYSA-N AlO Inorganic materials [Al]=O AIRCTMFFNKZQPN-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 239000003039 volatile agent Substances 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
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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
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Abstract
【解決手段】露出された導電材料を不動態化するシステムおよび方法は、処理チャンバ内に基板を配置する工程と、処理チャンバ内に水素種を注入する工程とを備える。処理チャンバ内で、水素種のプラズマが形成される。基板の上面から、表面層の種が還元される。還元された表面層の種は、処理チャンバから取り除かれる。
【選択図】図4
Description
Claims (23)
- 露出された導電材料を不動態化する方法であって、
処理チャンバ内に基板を配置する工程と、
前記処理チャンバ内に水素種を注入する工程と、
前記処理チャンバ内で水素種のプラズマを形成する工程と、
前記基板の上面から表面層の種を還元する工程と、
前記還元された表面層の種を前記処理チャンバから取り除く工程と、を備える、方法。 - 請求項1に記載の方法であって、前記導電材料は、銅含有材料、銅元素、NiFe、CoFe、Ni元素、Co、Ru、AlO、Ta、TaN、Pt、および、Ir、の内の少なくとも1つを備える、方法。
- 請求項1に記載の方法であって、前記不動態化の処理は、その場で実行される、方法。
- 請求項1に記載の方法であって、前記不動態化の処理は、その場以外の場所で実行される、方法。
- 請求項1に記載の方法であって、前記不動態化の処理は、エッチング処理の際に、その場で実行される、方法。
- 請求項5に記載の方法であって、前記不動態化の処理は、無圧平坦化処理の際に、その場で実行される、方法。
- 請求項1に記載の方法であって、前記不動態化の処理は、CMP動作に続いて、その場以外の場所で実行される、方法。
- 請求項1に記載の方法であって、前記処理チャンバは、約30から約400℃の間の温度を有する、方法。
- 請求項1に記載の方法であって、前記処理チャンバは、小容量のプラズマチャンバである、方法。
- 請求項1に記載の方法であって、前記処理チャンバは、誘導結合システム、ECRシステム、および、マイクロ波システム、の内の少なくとも1つを備える、方法。
- 請求項1に記載の方法であって、前記処理チャンバは、約1mTorrから約500mTorrの間の圧力を有する、方法。
- 請求項1に記載の方法であって、前記処理チャンバは、容量結合システムである、方法。
- 請求項1に記載の方法であって、前記水素種は、H2、HCl、HBr、CH4、および、NH3、の内の少なくとも1つを備える、方法。
- 請求項1に記載の方法であって、前記水素種を注入する工程は、搬送ガスを注入する工程を備える、方法。
- 請求項14に記載の方法であって、前記搬送ガスは、アルゴン、窒素、ヘリウム、ネオン、および、キセノン、の内の少なくとも1つを備える、方法。
- 請求項1に記載の方法であって、前前記表面層の種は、酸化物、ハロゲン化物、および、窒化物、の内の少なくとも1つを備える、方法。
- 請求項1に記載の方法であって、前記水素種によってプラズマを形成する工程は、前記基板と前記処理チャンバの内壁との少なくとも一方における残留物を揮発させる工程を備え、前記還元された表面層の種を前記処理チャンバから取り除く工程は、前記揮発した残留物を取り除く工程を備える、方法。
- 請求項1に記載の方法であって、前記基板の前記上面から前記表面層の種を還元する工程は、
前記基板の前記上面を活性化する工程と、
前記上面を粗面化する工程と、を備える、方法。 - 請求項1に記載の方法であって、前記露出された導電材料は、所定の期間で不動態化され、前記所定の期間は、前記基板の前記上面から前記表面層の種を所望の量だけ還元するのに十分である、方法。
- 請求項1に記載の方法であって、前記所定の期間は、約15秒よりも長い、方法。
- 露出された銅相互接続を不動態化する方法であって、
処理チャンバ内に基板を配置する工程と、
前記処理チャンバ内に水素種を注入する工程と、
前記処理チャンバ内で水素種のプラズマを形成する工程と、
前記露出された銅相互接続の上面から酸化銅を還元する工程と、
前記還元された酸化銅を前記処理チャンバから取り除く工程と、を備える、方法。 - 請求項21に記載の方法であって、前記処理チャンバの複数の内面の各々は、約250℃以上の温度を有し、前記処理チャンバの前記複数の内面の各々は、前記基板に対して露出されている、方法。
- 基板に対して非接触平坦化を実行する方法であって、
エッチング処理チャンバ内に基板を配置する工程と、
前記基板をエッチングする工程と、
前記エッチング処理チャンバ内に水素種を注入する工程と、
前記エッチング処理チャンバ内で水素種のプラズマを形成する工程と、
前記基板の上面から表面層の種を還元する工程と、
前記還元された表面層の種を前記処理チャンバから取り除く工程と、を備える、方法。
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US10/769,408 US7232766B2 (en) | 2003-03-14 | 2004-01-30 | System and method for surface reduction, passivation, corrosion prevention and activation of copper surface |
US10/769,408 | 2004-01-30 | ||
PCT/US2004/043910 WO2005076348A1 (en) | 2004-01-30 | 2004-12-30 | System and method for surface reduction, passivation, corrosion prevention and activation of copper surface |
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JP2007520080A true JP2007520080A (ja) | 2007-07-19 |
JP2007520080A5 JP2007520080A5 (ja) | 2008-03-06 |
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US (1) | US7232766B2 (ja) |
EP (1) | EP1709679A1 (ja) |
JP (1) | JP5153143B2 (ja) |
KR (1) | KR101127778B1 (ja) |
CN (1) | CN1906753A (ja) |
IL (1) | IL176591A (ja) |
WO (1) | WO2005076348A1 (ja) |
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JP5153143B2 (ja) | 2013-02-27 |
IL176591A (en) | 2012-06-28 |
CN1906753A (zh) | 2007-01-31 |
KR101127778B1 (ko) | 2012-03-26 |
WO2005076348A1 (en) | 2005-08-18 |
EP1709679A1 (en) | 2006-10-11 |
US7232766B2 (en) | 2007-06-19 |
KR20060121269A (ko) | 2006-11-28 |
US20050087759A1 (en) | 2005-04-28 |
IL176591A0 (en) | 2006-10-31 |
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