JP5295868B2 - 研磨布用ドレッサー及びその製造方法 - Google Patents
研磨布用ドレッサー及びその製造方法 Download PDFInfo
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- JP5295868B2 JP5295868B2 JP2009132037A JP2009132037A JP5295868B2 JP 5295868 B2 JP5295868 B2 JP 5295868B2 JP 2009132037 A JP2009132037 A JP 2009132037A JP 2009132037 A JP2009132037 A JP 2009132037A JP 5295868 B2 JP5295868 B2 JP 5295868B2
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- abrasive grains
- dresser
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- holding material
- polishing cloth
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- 238000005498 polishing Methods 0.000 title claims abstract description 103
- 239000004744 fabric Substances 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000006061 abrasive grain Substances 0.000 claims abstract description 153
- 239000000463 material Substances 0.000 claims abstract description 69
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 20
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010432 diamond Substances 0.000 claims description 29
- 229910003460 diamond Inorganic materials 0.000 claims description 26
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000011812 mixed powder Substances 0.000 claims description 11
- 239000010953 base metal Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 230000000873 masking effect Effects 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 6
- 150000003624 transition metals Chemical class 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052755 nonmetal Inorganic materials 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 2
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000011195 cermet Substances 0.000 abstract description 2
- 238000010494 dissociation reaction Methods 0.000 abstract 1
- 230000005593 dissociations Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 238000005219 brazing Methods 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 5
- 238000000227 grinding Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
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- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- IERHLVCPSMICTF-XVFCMESISA-N CMP group Chemical group P(=O)(O)(O)OC[C@@H]1[C@H]([C@H]([C@@H](O1)N1C(=O)N=C(N)C=C1)O)O IERHLVCPSMICTF-XVFCMESISA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- -1 carbide Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
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- 230000000052 comparative effect Effects 0.000 description 1
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- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 210000003643 myeloid progenitor cell Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
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Classifications
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- 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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- A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
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-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
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- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
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- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
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- H—ELECTRICITY
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- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0086—Heating or cooling appliances for medical or therapeutic treatment of the human body with a thermostat
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Description
上記のようなメッキ、ろう材を用いて砥粒を保持する方法では、砥粒の埋め込み量を一定としたドレッサーの製造は困難であり、埋め込み量が不足した場合の砥粒は研磨布をドレッシングする際に脱落するおそれがある。また、砥粒の突き出し量が不均一になった場合、研磨レートが不足したり、研磨布表面状態がばらついたりすると云う問題が発生する。さらに、研磨布のドレッシング時に、保持材の金属が微少に塑性変形してしまう程の負荷が砥粒に与えられることがあり、この場合に砥粒と保持材との間に間隙が生じ、結果として砥粒が脱落するといった問題も発生している。
例えば、砥粒間隔の狭いところでは、研削によって発生した研磨布の切り屑や研磨布に目詰まりしていた研磨粒子が外に排出されずに砥粒間に付着し、或いは研削時の摩擦熱により研磨布の一部が砥粒間に溶着して目詰まりが発生し、ドレッサーの研削性能が低下して研磨布表面が半鏡面化し、研磨速度が低下する。
上記焼結体を保持材として用いることにより、保持材がCu,Niをベースとしたろう材、Niメッキ等である場合に脱粒を引き起こしてしまう程の負荷が砥粒に与えられた場合でも、保持材は変形せずに砥粒を機械的に保持する力が強いため、砥粒の脱落に起因するウェハのスクラッチをなくすことが可能である。
%以上の突き出し量の場合、砥粒の脱落が生じるか、あるいは極端に研磨レートが高くなるかするため、望ましくない。
砥粒は、その粒径が10〜1000μmであるダイヤモンドまたは立方晶窒化ホウ素であることが望ましい。
上記耐酸性耐アルカリ性非金属被膜は、その厚さが1〜10μmであり、具体的には、ハロゲン含有ダイヤモンドライクカーボン、またはダイヤモンドライクカーボンであることが好ましい。
また、上記砥粒の配列方法において、ほぼ砥粒径サイズの上記粘着部は、粘着剤を塗着した保持材表面をマスキングするシートに、ほぼ砥粒径サイズの穴を形成することにより非マスキング部を形成し、該非マスキング部に粘着部を形成することができる。その後用途によっては保持材表面及び側面に耐酸性非金属被膜を施すことが可能である。
所定の配列で砥粒2を保持させた保持材3は、それを、図1及び図2に示すよう
に、エポキシ樹脂等でドレッサー台金1に接着し、その後、ドレッサー作用面をアルミナなどの遊離砥粒によるショットブラスト、ラッピング・エッチングなどにより平面化及び目立て加工を施し、それによって所定の寸法に仕上げると共に、砥粒2を所定の高さに突き出させて研磨布用ドレッサーとする。
[実施例]
重量比で3:1のタングステン−シリコン粉末の合計重量に対して5%の二酸化ケイ素を添加した粉末をボールミルで混合し、得られた混合粉末にパラフィンを体積で20%添加して更に混合し、得られた混合粉末を金型に充填して、圧力50MPaで平板状の成形体を作製した。また、粘着剤を塗着した粘着性シートに砥粒サイズの多数の穴を2次元的に等間隔にあけることにより形成した非マスキング部を有するマスキングを施し、非マスキング部を形成する直径約270μmの穴の配列を、台金(図1参照)上に固定する際の円周方向と径方向に隣接する砥粒がつくる最小の格子が平行四辺形で、その一辺の砥粒間隔が1.5mmである等間隔に形成した。
上記実施例と同じサイズのダイヤモンド砥粒をランダムの多配列状態で電着により固定してなる研磨布用ドレッサーを用いて、上記実施例と同じ条件でヒュームドシリカを主成分とするKOHベースのアルカリスラリー(キャボット製SS25)を毎分約15ml流布しながら、発泡ポリウレタン製研磨布を研削した。また、実施例と同様に脱粒の個数をカウントした。研削の結果を実施例の結果と共に表1に示す。
2 砥粒
3 保持材
4 接着剤
Claims (10)
- 台金の表面にドレッシング部が形成されてなる研磨布用ドレッサーであって、
前記ドレッシング部は多数個の砥粒とそれを保持する平板状の保持材によって形成され、該保持材が、タングステンとケイ素を主成分とし、これにフラックス剤として、上記保持材重量に対して1〜6%の二酸化ケイ素を添加してなる平板状の混合粉成形体により構成されており、
上記砥粒を上記混合粉成形体の表面に圧入して焼結することにより該砥粒が上記成形体の表面に固定されている、
ことを特徴とする研磨布用ドレッサー。 - 上記砥粒は、その粒径が10〜1000μmであるダイヤモンドまたは立方晶窒化ホウ素であって、かつ砥粒表面を不コート又はIVa,IVb,Va,VIa族遷移金属、またはNi,Co,Ag,Cu及びそれらの化合物でコーティングされていることを特徴とする請求項1に記載の研磨布用ドレッサー。
- 上記多数個の砥粒のそれぞれは、保持材表面に2次元的な規則性をもって配列され、その配列により形成される最小の格子における隣接する砥粒間の距離が、10〜3000μmの範囲であり、各砥粒が実質的に均等分布をなして配置されていることを特徴とする請求項1または2に記載の研磨布用ドレッサー。
- 上記砥粒は、粒度の異なる2種以上から構成されており、それぞれの砥粒種は単独に上記配列形状を成すことを特徴とする請求項3に記載の研磨布用ドレッサー。
- 上記砥粒を保持する平面状の保持材と台金のうち、少なくとも上記保持材の露出面に硬質の耐酸・耐アルカリ性非金属被膜を形成していることを特徴とする請求項1〜4のいずれかに記載の研磨布用ドレッサー。
- 上記耐酸・耐アルカリ性非金属被膜は、その厚さが1〜10μmであることを特徴とする請求項5に記載の研磨布用ドレッサー。
- 上記耐酸・耐アルカリ性非金属皮膜は、ハロゲン含有ダイヤモンドライクカーボン、またはダイヤモンドライクカーボンである請求項5に記載の研磨布用ドレッサー。
- 台金の表面に多数個の砥粒とそれを保持する平板状の保持材によって形成されたドレッシング部を有する研磨布用ドレッサーを製造する方法であって、
上記保持材は、タングステンとケイ素を主成分とし、これにフラックス剤として、上記保持材重量に対して1〜6%の二酸化ケイ素を添加してなる平板状の混合粉成形体により構成し、
上記砥粒を上記混合粉成形体の表面に圧入して焼結することにより該砥粒を上記成形体の表面に固定する、
ことを特徴とする研磨布用ドレッサーの製造方法。 - 保持材表面に多数個の砥粒を規則性をもって保持させるために上記保持材表面またはその上に載置するシートに、2次元的に規則性をもって配列させる各砥粒の保持位置に対応して、ほぼ砥粒径サイズの粘着部を設け、
それらの粘着部にそれぞれの単粒子の砥粒を粘着させ、
ついで、上記砥粒を該保持材の表面に保持させてこの保持材を焼結することにより固定する、
ことを特徴とする請求項8に記載の研磨布用ドレッサーの製造方法。 - ほぼ砥粒径サイズの上記粘着部は、粘着剤を塗着した保持材表面をマスキングするシートに、ほぼ砥粒径サイズの穴を形成することにより非マスキング部を形成し、該非マスキング部に粘着部を形成することを特徴とする請求項9に記載の研磨布用ドレッサーの製造方法。
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US20110275288A1 (en) * | 2010-05-10 | 2011-11-10 | Chien-Min Sung | Cmp pad dressers with hybridized conditioning and related methods |
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JP5644401B2 (ja) * | 2010-11-15 | 2014-12-24 | 株式会社Sumco | エピタキシャルウェーハの製造方法およびエピタキシャルウェーハ |
CN102092009B (zh) * | 2010-12-10 | 2012-09-05 | 天津大学 | 陶瓷结合剂金刚石修整轮 |
JP5853946B2 (ja) * | 2012-01-06 | 2016-02-09 | 信越化学工業株式会社 | 外周切断刃の製造方法 |
TWI511841B (zh) * | 2013-03-15 | 2015-12-11 | Kinik Co | 貼合式化學機械硏磨修整器及其製法 |
KR101506875B1 (ko) * | 2013-09-11 | 2015-03-31 | 주식회사 엘지실트론 | 드레싱 유닛 |
CN104822491A (zh) * | 2013-10-02 | 2015-08-05 | 日本碍子株式会社 | 研磨物的制造方法 |
JP2018032745A (ja) * | 2016-08-24 | 2018-03-01 | 東芝メモリ株式会社 | ドレッサー、ドレッサーの製造方法、及び半導体装置の製造方法 |
CN106914826B (zh) * | 2017-03-21 | 2023-08-01 | 东旭集团有限公司 | 一种用于大尺寸陶瓷盘的修复装置 |
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