JP2017052078A - ケミカルメカニカル研磨パッド及び同研磨パッドの製造方法 - Google Patents
ケミカルメカニカル研磨パッド及び同研磨パッドの製造方法 Download PDFInfo
- Publication number
- JP2017052078A JP2017052078A JP2016125338A JP2016125338A JP2017052078A JP 2017052078 A JP2017052078 A JP 2017052078A JP 2016125338 A JP2016125338 A JP 2016125338A JP 2016125338 A JP2016125338 A JP 2016125338A JP 2017052078 A JP2017052078 A JP 2017052078A
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- Prior art keywords
- chemical mechanical
- side liquid
- cylindrical chamber
- mechanical polishing
- supply port
- Prior art date
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- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
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- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
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- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
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- B24B37/26—Lapping pads for working plane surfaces characterised by the shape of the lapping pad surface, e.g. grooved
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/017—Devices or means for dressing, cleaning or otherwise conditioning lapping tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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Abstract
【解決手段】研磨面95を有するケミカルメカニカル研磨層90を含むケミカルメカニカル研磨パッドであって、ケミカルメカニカル研磨層90が、(a)アミン/二酸化炭素アダクトと、ポリオール類、ポリアミン類及びアルコールアミン類の少なくとも一つとを含むポリ(P)側液体成分と、(b)多官能イソシアネートを含むイソ(I)側液体成分とを混合させることによって形成され、ケミカルメカニカル研磨層90が≧10容量%の気孔率を有し、ケミカルメカニカル研磨層90が<40のショアーD硬さを有し、研磨面95が、基材を研磨するように適されている、ケミカルメカニカル研磨パッドが提供される。また、同研磨パッドを製造する方法及び同研磨パッドを使用する方法が提供される。
【選択図】図2
Description
本発明は、研磨層を有するケミカルメカニカル研磨パッドに関する。より具体的には、本発明は、研磨面を有するケミカルメカニカル研磨層を有するケミカルメカニカル研磨パッドであって、ケミカルメカニカル研磨層が、(a)アミン/二酸化炭素アダクトと、ポリオール類、ポリアミン類及びアルコールアミン類の少なくとも一つとを含むポリ(P)側液体成分と、(b)多官能イソシアネートを含むイソ(I)側液体成分とを混合させることによって形成され、ケミカルメカニカル研磨層が≧10容量%の気孔率を有し、ケミカルメカニカル研磨層が<40のショアーD硬さを有し、研磨面が、基材を研磨するように適されている、ケミカルメカニカル研磨パッドならびに同研磨パッドを製造する方法及び同研磨パッドを使用する方法に関する。
本発明のケミカルメカニカル研磨パッドは、唯一のポリ(P)側液体成分とイソ(I)側液体成分とを混合させることによって形成されるケミカルメカニカル研磨層を含み、ポリ(P)側液体成分が、アミン/二酸化炭素アダクトと、(P)側ポリオール類、(P)側ポリアミン類及び(P)側アルコールアミン類の少なくとも一つとを含み、イソ(I)側液体成分が少なくとも一つの(I)側多官能イソシアネート類を含む。驚くことに、本発明の軟質研磨層組成物へのアミン/二酸化炭素アダクトの配合が基材研磨性能における有意な改善を提供することがわかった。
の一つに該当する式を有するアルカノールアミン類と接触させることによって得られる。好ましくは、アミン/二酸化炭素アダクトは、二酸化炭素を、第一級アミン類であるアルカノールアミン類と接触させることによって得られる。
高分子量ポリエーテルポリオール(The Dow Chemical Companyから市販されているVoralux(登録商標)HF505ポリオール)88.62重量%、モノエチレングリコール10.0重量%、シリコーン界面活性剤(Evonikから市販されているTegostab(登録商標)B8418)1.23重量%、スズ触媒(Momentiveから市販されているFomrez(登録商標)UL-28)0.05重量%及び第三級アミン触媒(Air Products, Inc.から市販されているDabco(登録商標)33LV触媒)0.10重量%を含有するポリ(P)側液体成分を提供した。改質ジフェニルメタンジイソシアネート(The Dow Chemical Companyから市販されているIsonate(商標)181MDIプレポリマー)100重量%を含有するイソ(I)側液体成分を提供した。加圧ガス(乾燥空気)を提供した。
高分子量ポリエーテルポリオール(The Dow Chemical Companyから市販されているVoralux(登録商標)HF505ポリオール)88.62重量%、モノエチレングリコール10.0重量%、シリコーン界面活性剤(Evonikから市販されているTegostab(登録商標)B8418)1.23重量%、スズ触媒(Momentiveから市販されているFomrez(登録商標)UL-28)0.05重量%及び第三級アミン触媒(Air Products, Inc.から市販されているDabco(登録商標)33LV触媒)0.10重量%を含有するポリ(P)側液体成分を提供した。さらなる液体物質(The Dow Chemical Companyから市販されているSpecflex(商標)NR556CO2/脂肪族アミンアダクト)を、ポリ(P)側液体成分100重量部あたり3重量部でポリ(P)側液体成分に加えた。改質ジフェニルメタンジイソシアネート(The Dow Chemical Companyから市販されているIsonate(商標)181MDIプレポリマー)100重量%を含有するイソ(I)側液体成分を提供した。加圧ガス(乾燥空気)を提供した。
比較例C1及び実施例1からの研磨層を分析して、表3に報告するような物性を測定した。報告する密度データは、ASTM D1622にしたがって測定されたものであり、報告するショアーD硬さデータは、ASTM D2240にしたがって測定されたものであり、報告する破断点伸びデータは、ASTM D412にしたがって測定されたものであることに留意すること。
Claims (10)
- 研磨面、ベース面及び研磨面に対して垂直にベース面から研磨面までで計測される平均研磨層厚さTP-avgを有するケミカルメカニカル研磨層
を含むケミカルメカニカル研磨パッドであって、
ケミカルメカニカル研磨層が、ポリ(P)側液体成分とイソ(I)側液体成分とを混合させることによって形成され、
ポリ(P)側液体成分が、アミン/二酸化炭素アダクトと、(P)側ポリオール類、(P)側ポリアミン類及び(P)側アルコールアミン類の少なくとも一つとを含み、
イソ(I)側液体成分が少なくとも一つの(I)側多官能イソシアネート類を含み、
ケミカルメカニカル研磨層が≧10容量%の気孔率を有し、
ケミカルメカニカル研磨層が<40のショアーD硬さを有し、
研磨面が、基材を研磨するように適されている、ケミカルメカニカル研磨パッド。 - ポリ(P)側液体成分が、アミン/二酸化炭素アダクト1〜5重量%及び(P)側ポリオール類25〜95重量%を含み、(P)側ポリオール類が高分子量ポリエーテルポリオール類であり、高分子量ポリエーテルポリオール類が、2,500〜100,000の数平均分子量MNを有し、1分子あたり平均4〜8個のヒドロキシル基を有する、請求項1記載のケミカルメカニカル研磨パッド。
- ポリ(P)側液体成分が低分子量ポリオール類10〜30重量%をさらに含み、低分子量ポリオール類が≦200の数平均分子量MNを有する、請求項2記載のケミカルメカニカル研磨パッド。
- (I)側多官能イソシアネート類が1分子あたり平均2個の反応性イソシアネート基を有する、請求項1記載の方法。
- ポリ(P)側液体成分が触媒及び界面活性剤の少なくとも一つをさらに含む、請求項3記載の方法。
- ケミカルメカニカル研磨層を製造する方法であって、
アミン/二酸化炭素アダクトと、(P)側ポリオール類、(P)側ポリアミン類及び(P)側アルコールアミン類の少なくとも一つとを含むポリ(P)側液体成分を提供する工程、
少なくとも一つの(I)側多官能イソシアネート類を含むイソ(I)側液体成分を提供する工程、
加圧ガスを提供する工程、
内部円柱形チャンバを有する軸混合装置を提供する工程であって、
内部円柱形チャンバが、閉止端、開放端、対称軸、内部円柱形チャンバに通じる少なくとも一つの(P)側液体供給ポート、内部円柱形チャンバに通じる少なくとも一つの(I)側液体供給ポート及び内部円柱形チャンバに通じる少なくとも一つの接線方向加圧ガス供給ポートを有し、
閉止端及び開放端が対称軸に対して垂直であり、
少なくとも一つの(P)側液体供給ポート及び少なくとも一つの(I)側液体供給ポートが、閉止端に近い内部円柱形チャンバの周囲に沿って配置され、
少なくとも一つの接線方向加圧ガス供給ポートが、閉止端から少なくとも一つの(P)側液体供給ポート及び少なくとも一つの(I)側液体供給ポートより下流で内部円柱形チャンバの周囲に沿って配置され、
ポリ(P)側液体成分が、少なくとも一つの(P)側液体供給ポートを介して6,895〜27,600kPaの(P)側チャージ圧で内部円柱形チャンバに導入され、
イソ(I)側液体成分が、少なくとも一つの(I)側液体供給ポートを介して6,895〜27,600kPaの(I)側チャージ圧で内部円柱形チャンバに導入され、
内部円柱形チャンバへのポリ(P)側液体成分とイソ(I)側液体成分との合計質量流量が1〜500g/sであり、
ポリ(P)側液体成分、イソ(I)側液体成分及び加圧ガスが内部円柱形チャンバ内で混ぜ合わされて混合物を形成し、
加圧ガスが、少なくとも一つの接線方向加圧ガス供給ポートを介して150〜1,500kPaの供給圧で内部円柱形チャンバに導入され、
内部円柱形チャンバへの加圧ガスの入口速度が、20℃及び1気圧の理想気体条件に基づいて計算して50〜600m/sである、工程、
混合物を内部円柱形チャンバの開放端から標的に向けて5〜1,000m/secの速度で放出する工程、
混合物をケーキへと固化させる工程、及び
ケーキからケミカルメカニカル研磨層を得る工程であって、ケミカルメカニカル研磨層が、≧10容量%の気孔率及び基材を研磨するように適合された研磨面を有する、工程
を含む方法。 - (P)側ポリオール類、(P)側ポリアミン類及び(P)側アルコールアミン類の少なくとも一つを含むポリ(P)側物質を提供する工程、
少なくとも一つの(I)側多官能イソシアネート類を含むイソ(I)側物質を提供する工程であって、
ポリ(P)側物質が、少なくとも一つの(P)側液体供給ポートを介して6,895〜27,600kPaの(P)側チャージ圧で内部円柱形チャンバに導入され、
イソ(I)側物質が、少なくとも一つの(I)側液体供給ポートを介して6,895〜27,600kPaの(I)側チャージ圧で内部円柱形チャンバに導入され、
内部円柱形チャンバへのポリ(P)側物質とイソ(I)側物質との合計質量流量が1〜500g/sであり、
ポリ(P)側物質、イソ(I)側物質及び加圧ガスが内部円柱形チャンバ内で混ぜ合わされて混合物を形成し、
加圧ガスが、少なくとも一つの接線方向加圧ガス供給ポートを介して150〜1,500kPaの供給圧で内部円柱形チャンバに導入され、
内部円柱形チャンバへの加圧ガスの入口速度が、20℃及び1気圧の理想気体条件に基づいて計算して50〜600m/sである、工程、
混合物を内部円柱形チャンバの開放端からケミカルメカニカル研磨層のベース面に向けて5〜1,000m/secの速度で放出する工程、
混合物をケミカルメカニカル研磨層のベース面上で固化させてサブパッドを形成する工程であって、サブパッドが、ケミカルメカニカル研磨層と一体化しており、サブパッドが、ケミカルメカニカル研磨層の気孔率とは異なる気孔率を有する、工程
をさらに含む、請求項6記載の方法。 - 磁性基材、光学基材及び半導体基材の少なくとも一つから選択される基材を提供する工程、
請求項1記載のケミカルメカニカル研磨層を有するケミカルメカニカル研磨パッドを提供する工程、
ケミカルメカニカル研磨層の研磨面と基材との間に動的接触を生じさせて基材の表面を研磨する工程、及び
研磨面を砥粒コンディショナによってコンディショニングする工程
を含む、基材を研磨する方法。 - 半導体基材がTEOSフィーチャーを有し、少なくともいくらかのTEOSが基材から除去される、請求項8記載の方法。
- コロイダルシリカ砥粒を含む研磨媒体を提供する工程、
ケミカルメカニカル研磨パッドの研磨面上、ケミカルメカニカル研磨パッドと基材との界面の近傍に研磨媒体を分注する工程であって、
研磨媒体がTEOSフィーチャー及び研磨面と接触する、工程
をさらに含む、請求項9記載の方法。
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- 2016-05-24 US US15/163,152 patent/US9776300B2/en active Active
- 2016-06-13 TW TW105118460A patent/TWI692494B/zh active
- 2016-06-23 CN CN201610461559.3A patent/CN107695868A/zh active Pending
- 2016-06-23 KR KR1020160078574A patent/KR102477528B1/ko active IP Right Grant
- 2016-06-24 JP JP2016125338A patent/JP6870928B2/ja active Active
- 2016-06-24 DE DE102016007775.1A patent/DE102016007775A1/de not_active Withdrawn
- 2016-06-27 FR FR1655965A patent/FR3037834B1/fr not_active Expired - Fee Related
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Also Published As
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FR3037834A1 (ja) | 2016-12-30 |
CN107695868A (zh) | 2018-02-16 |
TWI692494B (zh) | 2020-05-01 |
US20160379840A1 (en) | 2016-12-29 |
KR102477528B1 (ko) | 2022-12-15 |
DE102016007775A1 (de) | 2016-12-29 |
FR3037834B1 (fr) | 2021-01-08 |
TW201700555A (zh) | 2017-01-01 |
JP6870928B2 (ja) | 2021-05-12 |
KR20170001621A (ko) | 2017-01-04 |
US9776300B2 (en) | 2017-10-03 |
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