JP5091400B2 - 無砥粒ケミカルメカニカルポリッシング組成物 - Google Patents
無砥粒ケミカルメカニカルポリッシング組成物 Download PDFInfo
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- JP5091400B2 JP5091400B2 JP2005338383A JP2005338383A JP5091400B2 JP 5091400 B2 JP5091400 B2 JP 5091400B2 JP 2005338383 A JP2005338383 A JP 2005338383A JP 2005338383 A JP2005338383 A JP 2005338383A JP 5091400 B2 JP5091400 B2 JP 5091400B2
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- amphiphilic polymer
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 17
- -1 phosphorus compound Chemical class 0.000 claims description 17
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 15
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- 125000004432 carbon atom Chemical group C* 0.000 description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
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- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
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- C—CHEMISTRY; METALLURGY
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- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/04—Aqueous dispersions
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
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- 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
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- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
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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
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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
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
-
- 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
- H01L21/7684—Smoothing; Planarisation
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
重合は、攪拌機、温度制御装置、凝縮器、モノマー供給ライン、触媒供給ライン、連鎖移動剤供給ライン及び窒素スイープを備えた1リットルの四つ口丸底反応フラスコで実施した。これらの成分を以下の順序にしたがって加えた。tert−ブチルアルコール190gをフラスコに仕込み、窒素スイープ下、80〜82℃に加熱した。tert−ブチルアルコール50g及びアクリル酸192.6gをモノマー供給タンクに仕込んだ。tert−ブチルアルコール10g及びn−ドデシルメルカプタン19.0gを連鎖移動剤供給タンクに仕込んだ。tert−ブチルアルコール24g及びtert−ブチルペルオキシピバレート4.8gを開始剤供給タンクに仕込んだ。82℃に達したところで、3成分の供給を同時に開始した。モノマーは、毎分2.1gの速度で2時間供給した。連鎖移動剤は、毎分0.25gの速度で2時間供給した。開始剤は、毎分0.21gの速度で2時間供給した。反応物を80〜82℃に維持した。供給が完了したところで、tert−ブチルアルコール5gをモノマー供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール5gを連鎖移動剤供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール7gを開始剤供給タンクに加え、反応フラスコに供給した。次いで、温度を80〜82℃に維持しながら1時間かけて脱イオン水202gを反応フラスコに供給した。反応物を65℃に冷まし、硫酸第一鉄、tert−ブチルペルオキシド及びホルムアルデヒドスルホキシル酸ナトリウムの添加によって残留モノマーを還元した。反応物を室温まで冷ました。固形分29.3重量%の明澄な溶液を得た。数平均分子量は、水性ゲル透過クロマトグラフィーによる測定で、2134であった。この溶液を真空オーブン中、室温で終夜乾燥させると、白色固体が得られた。
重合は、攪拌機、温度制御装置、凝縮器、モノマー供給ライン、触媒供給ライン、連鎖移動剤供給ライン及び窒素スイープを備えた1リットルの四つ口丸底反応フラスコで実施した。これらの成分を以下の順序にしたがって加えた。tert−ブチルアルコール190gをフラスコに仕込み、窒素スイープ下、80〜82℃に加熱した。tert−ブチルアルコール50g及びアクリル酸192.6gをモノマー供給タンクに仕込んだ。tert−ブチルアルコール30g及びn−ドデシルメルカプタン53.1gを連鎖移動剤供給タンクに仕込んだ。tert−ブチルアルコール24g及びtert−ブチルペルオキシピバレート4.8gを開始剤供給タンクに仕込んだ。82℃に達したところで、3成分の供給を同時に開始した。モノマーは、毎分2.1gの速度で2時間供給した。連鎖移動剤は、毎分0.70gの速度で2時間供給した。開始剤は、毎分0.21gの速度で2時間供給した。反応物を80〜82℃に維持した。供給が完了したところで、tert−ブチルアルコール5gをモノマー供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール5gを連鎖移動剤供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール7gを開始剤供給タンクに加え、反応フラスコに供給した。次いで、tert−ブチルアルコール240gを反応フラスコに加え、反応物を80〜82℃で1時間保持した。反応物を室温まで冷ました。固形分30.1重量%の明澄な溶液を得た。数平均分子量は、水性ゲル透過クロマトグラフィーによる測定で、796であった。この溶液を真空オーブン中、室温で終夜乾燥させると、白色固体が得られた。
重合は、攪拌機、温度制御装置、凝縮器、モノマー供給ライン、触媒供給ライン、連鎖移動剤供給ライン及び窒素スイープを備えた1リットルの四つ口丸底反応フラスコで実施した。これらの成分を以下の順序にしたがって加えた。1−プロパノール190gをフラスコに仕込み、窒素スイープ下、80〜82℃に加熱した。1−プロパノール50g及びメタクリル酸192.6gをモノマー供給タンクに仕込んだ。1−プロパノール10g及びn−ドデシルメルカプタン16.0gを連鎖移動剤供給タンクに仕込んだ。1−プロパノール24g及びtert−ブチルペルオキシピバレート4.8gを開始剤供給タンクに仕込んだ。82℃に達したところで、3成分の供給を同時に開始した。モノマーは、毎分2.1gの速度で2時間供給した。連鎖移動剤は、毎分0.25gの速度で2時間供給した。開始剤は、毎分0.21gの速度で2時間供給した。反応物を80〜82℃に維持した。供給が完了したところで、tert−ブチルアルコール5gをモノマー供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール5gを連鎖移動剤供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール7gを開始剤供給タンクに加え、反応フラスコに供給した。次いで、1−プロパノール299.5gを反応フラスコに加え、反応物を80〜82℃で1時間保持した。反応物を室温まで冷ました。固形分29.9重量%の明澄な溶液を得た。数平均分子量は、水性ゲル透過クロマトグラフィーによる測定で、2347であった。この溶液を真空オーブン中、室温で終夜乾燥させると、白色固体が得られた。
重合は、攪拌機、温度制御装置、凝縮器、モノマー供給ライン、触媒供給ライン、連鎖移動剤供給ライン及び窒素スイープを備えた1リットルの四つ口丸底反応フラスコで実施した。これらの成分を以下の順序にしたがって加えた。1−プロパノール190gをフラスコに仕込み、窒素スイープ下、80〜82℃に加熱した。1−プロパノール50g及びメタクリル酸192.6gをモノマー供給タンクに仕込んだ。1−プロパノール30g及びn−ドデシルメルカプタン44.6gを連鎖移動剤供給タンクに仕込んだ。1−プロパノール24g及びtert−ブチルペルオキシピバレート4.8gを開始剤供給タンクに仕込んだ。82℃に達したところで、3成分の供給を同時に開始した。モノマーは、毎分2.1gの速度で2時間供給した。連鎖移動剤は、毎分0.62gの速度で2時間供給した。開始剤は、毎分0.21gの速度で2時間供給した。反応物を80〜82℃に維持した。供給が完了したところで、tert−ブチルアルコール5gをモノマー供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール5gを連鎖移動剤供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール7gを開始剤供給タンクに加え、反応フラスコに供給した。反応物を80〜82℃で1時間保持した。反応物を室温まで冷ました。固形分45.3重量%の明澄な溶液を得た。数平均分子量は、水性ゲル透過クロマトグラフィーによる測定で、1144であった。この溶液を真空オーブン中、室温で終夜乾燥させると、白色固体が得られた。
重合は、攪拌機、温度制御装置、凝縮器、モノマー供給ライン、触媒供給ライン、連鎖移動剤供給ライン及び窒素スイープを備えた1リットルの四つ口丸底反応フラスコで実施した。これらの成分を以下の順序にしたがって加えた。tert−ブチルアルコール180gをフラスコに仕込み、窒素スイープ下、80〜82℃に加熱した。tert−ブチルアルコール50g及びアクリル酸192.6gをモノマー供給タンクに仕込んだ。オクタデシルメルカプタン25.1gを蒸気浴でtert−ブチルアルコール20gに溶解したのち、連鎖移動剤供給タンクに仕込んだ。tert−ブチルアルコール24g及びtert−ブチルペルオキシピバレート4.8gを開始剤供給タンクに仕込んだ。82℃に達したところで、3成分の供給を同時に開始した。モノマーは、毎分2.1gの速度で2時間供給した。連鎖移動剤は、毎分0.62gの速度で2時間供給した。開始剤は、毎分0.21gの速度で2時間供給した。反応物を80〜82℃に維持した。供給が完了したところで、tert−ブチルアルコール5gをモノマー供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール15gを連鎖移動剤供給タンクに加え、反応フラスコに供給した。tert−ブチルアルコール7gを開始剤供給タンクに加え、反応フラスコに供給した。次いで、脱イオン水202gを反応フラスコに加え、反応物を80〜82℃で1時間保持した。反応物を65℃に冷まし、硫酸第一鉄、tert−ブチルペルオキシド及びホルムアルデヒドスルホキシル酸ナトリウムの添加によって残留モノマーを還元した。反応物を室温まで冷ました。固形分28.6重量%の明澄な溶液を得た。数平均分子量は特定しなかった。この溶液を真空オーブン中、室温で終夜乾燥させると、白色固体が得られた。
この実施例では、すべての組成物は、pH3.5でBTA0.50重量%、リンゴ酸0.22重量%、カルボキシメチルセルロース(CMC)0.32重量%、メチルアルコール1.0重量%、両親媒性ポリマー0.10重量%、リン酸アンモニウム0.50重量%及び過酸化水素9.00重量%を含有するものであった。pHは硝酸で調節し、残余は脱イオン水であった。IPEC 472研磨機により、IC1000(商標)ポリウレタン研磨パッド(Rohm and Haas Electronic Materials CMP Technologies)を、異なるダウンフォース条件下、160cc/minの研磨溶液流量、80rpmのプラテン速度及び75rpmのキャリヤ速度で使用してCuシートウェーハを研磨して、除去速度をÅ/min単位で測定した。Kinikダイアモンド研磨ディスクで研磨パッドをコンディショニングした。
この実施例では、すべての組成物は、pH3.5でBTA0.50重量%、リンゴ酸0.22重量%、カルボキシメチルセルロース(CMC)0.32重量%、メチルアルコール1.00重量%、リン酸アンモニウム0.50重量%及び過酸化水素9.00重量%を含有するものであった。pHは硝酸で調節し、残余は脱イオン水であった。
Claims (5)
- 非鉄金属を含有するパターン付き半導体ウェーハのケミカルメカニカルポリッシングに有用な無砥粒水性組成物であって、酸化剤、非鉄金属のインヒビター、水溶性改質セルロース0〜15重量%、リン化合物0〜15重量%、両親媒性ポリマー0.005〜5重量%及び水を含み、
両親媒性ポリマーが、モノマー単位1〜100のイオン親水部分と疎水端とを有し、イオン親水部分がアニオン性親水性セグメントを含み、親水性セグメントが、ポリアクリル酸、ポリメタクリル酸又はポリアクリル酸及びポリメタクリル酸のコポリマーを含み、疎水端がアルキルメルカプタンを含み、
無砥粒水性組成物のpH範囲が2〜5である組成物。 - 非鉄金属を含有するパターン付き半導体ウェーハのケミカルメカニカルポリッシングに有用な無砥粒水性組成物であって、酸化剤0〜25重量%、非鉄金属のインヒビター0.05〜15重量%、非鉄金属の錯化剤0〜15重量%、水溶性改質セルロース0.01〜5重量%、リン化合物0.01〜10重量%、両親媒性ポリマー0.01〜3重量%及び水を含み、
両親媒性ポリマーが、疎水端とモノマー単位1〜100のイオン親水部分とを有し、及び数平均分子量100〜4,000を有し、イオン親水部分がアニオン性親水性セグメントを含み、親水性セグメントが、ポリアクリル酸、ポリメタクリル酸又はポリアクリル酸及びポリメタクリル酸のコポリマーを含み、疎水端がアルキルメルカプタンを含み、
無砥粒水性組成物のpH範囲が2〜5である組成物。 - 前記両親媒性ポリマーが100〜3,000の数平均分子量を有する、請求項2記載の組成物。
- 前記両親媒性ポリマーが、アクリル酸又はメタクリル酸で形成されたコポリマーである、請求項2又は3記載の組成物。
- 前記両親媒性ポリマーがアルキルメルカプタン終端化メタクリル酸コポリマーである、請求項2〜4のいずれか1項記載の組成物。
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-
2004
- 2004-11-24 US US10/996,689 patent/US7435356B2/en active Active
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2005
- 2005-10-31 KR KR1020050102799A patent/KR101101169B1/ko active IP Right Grant
- 2005-11-11 TW TW094139567A patent/TWI359860B/zh active
- 2005-11-23 SG SG200507413A patent/SG122919A1/en unknown
- 2005-11-24 CN CNB2005101287071A patent/CN100362068C/zh active Active
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KR101101169B1 (ko) | 2012-01-05 |
CN1782006A (zh) | 2006-06-07 |
TW200624543A (en) | 2006-07-16 |
KR20060058009A (ko) | 2006-05-29 |
US7435356B2 (en) | 2008-10-14 |
JP2006165541A (ja) | 2006-06-22 |
CN100362068C (zh) | 2008-01-16 |
TWI359860B (en) | 2012-03-11 |
SG122919A1 (en) | 2006-06-29 |
US20060110924A1 (en) | 2006-05-25 |
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