JP5733497B2 - 二重気孔構造研磨パッド - Google Patents
二重気孔構造研磨パッド Download PDFInfo
- Publication number
- JP5733497B2 JP5733497B2 JP2010216044A JP2010216044A JP5733497B2 JP 5733497 B2 JP5733497 B2 JP 5733497B2 JP 2010216044 A JP2010216044 A JP 2010216044A JP 2010216044 A JP2010216044 A JP 2010216044A JP 5733497 B2 JP5733497 B2 JP 5733497B2
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- pad
- pore
- porous
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005498 polishing Methods 0.000 title claims description 149
- 239000011148 porous material Substances 0.000 title claims description 114
- 239000000758 substrate Substances 0.000 claims description 37
- 229920002635 polyurethane Polymers 0.000 claims description 33
- 239000004814 polyurethane Substances 0.000 claims description 33
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 229920006254 polymer film Polymers 0.000 claims description 4
- 230000007547 defect Effects 0.000 description 38
- 239000010410 layer Substances 0.000 description 33
- 229920000642 polymer Polymers 0.000 description 29
- 239000010408 film Substances 0.000 description 26
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 24
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 21
- 235000012431 wafers Nutrition 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 19
- 239000010949 copper Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- 239000002904 solvent Substances 0.000 description 13
- 230000008901 benefit Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 239000002002 slurry Substances 0.000 description 11
- 210000002421 cell wall Anatomy 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000003750 conditioning effect Effects 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 238000009472 formulation Methods 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004094 surface-active agent Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 239000012776 electronic material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 6
- 238000005345 coagulation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polyethylene propylene glycol adipate Polymers 0.000 description 2
- 229920000307 polymer substrate Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000007655 standard test method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 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
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- YHAIUSTWZPMYGG-UHFFFAOYSA-L disodium;2,2-dioctyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCCCC YHAIUSTWZPMYGG-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004620 low density foam Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000582 polyisocyanurate Polymers 0.000 description 1
- 239000011495 polyisocyanurate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920003226 polyurethane urea Polymers 0.000 description 1
- 210000003429 pore cell Anatomy 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- 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
- 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
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
- C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
- C08G18/4252—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids derived from polyols containing polyether groups and polycarboxylic acids
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- H01L21/30—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
-
- 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
- H01L21/30—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
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
- Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
本発明の一つの局面は、磁性、光学および半導体基材の少なくとも1種の研磨に有効な研磨パッドであって、多孔質研磨層を含み、多孔質研磨層がポリウレタンマトリックス内に二重気孔構造を有し、二重気孔構造が第1の気孔群を有し、第1の気孔群が孔壁を有し、孔壁が厚さ15〜55μm、25℃で測定した貯蔵弾性率10〜60MPaを有し、そして孔壁内に第2の気孔群を含有し、第2の気孔群の平均孔径が5〜30μmであり、多孔質研磨層を、ポリマーフィルムまたはシート基材に固定するか、あるいは織物または不織構造に作って形成する研磨パッドを提供する。
本発明の研磨パッドは、磁性、光学および半導体基材の少なくとも1種の研磨に有効である。特に、本ポリウレタンパッドは、半導体ウエーハの研磨に有効であり;そして特に、本パッドは、欠陥度が極めて低いことが平坦化する能力よりも重要であり、そして複数の材料、例えば銅、バリヤ金属および絶縁材料(TEOS、low−kおよび超low−k絶縁材を含むがこれらに限定されない)を同時に除去する必要がある先端の用途、例えば銅バリヤ用途の研磨に有効である。本明細書において、「ポリウレタン」とは、二官能性または多官能性イソシアネートから誘導される生成物、例えばポリエーテルウレア、ポリイソシアヌレート、ポリウレタン、ポリウレア、ポリウレタンウレア、これらのコポリマーおよびこれらの混合物である。発泡の発生および絶縁材汚染の可能性を回避するために、これらの配合物は、界面活性剤フリー配合物であるのが有利である。研磨パッドは、支持ベース基材上にコーティングされたポリウレタンマトリックス内に、二重気孔構造を有する多孔質研磨層を含む。二重気孔構造は、大きな気孔の第1群、並びにこの大きな気孔の気泡壁内およびその間の小さな気孔の第2群を有する。この二重気孔構造は、欠陥を減らす働きをする一方で、研磨システムの一部に対して除去速度を上げる。
表1に、以下の例に記載されたパッドの特性をまとめる。全体的なパッド特性、マクロ孔の計測データ、研磨データ、およびポロメリック研磨パッドを定義するいくつかの特徴に対する値を含む。例1〜3は、市販ポリウレタンポロメリック研磨パッドの比較例を表す。例4〜7は、市販研磨パッドよりも改良された研磨性能を示す研磨パッドを表す。
DMA測定:ポロメリックコーティングの孔壁を形成するポリマーの引張貯蔵弾性率を、キャストフィルムの動的機械分析により測定した。これらは、ジメチルホルムアミドに溶解したポリマーをガラス板上にコーティングし、溶剤を高温で除去し、次に乾燥したコーティングをガラス板から取り外して、気泡および他の欠点を含まない、厚さ約300ミクロンの独立したフィルムを残すことにより調製した。25℃および相対湿度50%で5日間のフィルムコンディショニングの後、Rheometric Scientific(商標)Solids Analyzer RSA IIIを用いて、引張貯蔵弾性率を測定した。引張測定を、薄膜治具を用い、周波数10rad/secおよび温度25℃で、ASTM D5026-06 "Standard Test Method for Plastics: Dynamic Mechanical Properties: In Tension"にしたがって行った。サンプルの寸法は長さ20mm、幅6.5mmであった。
w =(A/πP)1/2−(MPA/π)1/2
を用いて算出した。
比較パッドAは、半導体ウエーハの研磨に長年広く用いられているポリウレタンポロメリックパッドであった。
比較パッドBは、半導体ウエーハ研摩に用いられている、Fujibo CorporationからH7000HN-PETの呼称で販売される、ポリウレタンポロメリックパッドであった。このパッドは、研磨層をポリエステルフィルム基材上にコーティングされるほかは、例1で用いたのと同様のプロセスにより製造されるようであり、そして気孔構造を制御するために配合物に添加された界面活性剤、例えばジオクチルスルホコハク酸ナトリウムを含んでいた。比較パッドBの気孔構造は、比較パッドAのそれと異なっていた。比較パッドBは、大きなマクロ孔およびマクロ孔の孔壁内のより小さなミクロ孔の両方からなる気孔構造を有していた。
比較パッドCは、ケイ素ウエーハ研摩に用いられているポロメリックパッドであった。このパッドは、Dow Electronic MaterialsによりSPM3100の呼称で製造された。このパッドは、研磨層をポリエステルフィルム基材上にコーティングしたほかは、例1で用いたのと同様のプロセスにより製造した。比較パッドCは、望ましい気孔形態を有し、大小両方の気孔と望ましい壁厚さとを有するが、孔壁内のポリマーのモジュラスは、低欠陥度研磨には高すぎた。この例は、低欠陥研磨用途の要求に必要な極めて低い欠陥レベルを達成するために、孔壁内のポリマーのモジュラスを、臨界値未満に制御する必要性を明示した。また、TEOS:Cu除去速度選択比は、先端の低欠陥または将来の研磨ニーズに対して許容し難いほど低かった。
ポリウレタンを、DMF中で、ポリエチレンプロピレングリコールアジペートポリオール(0.0102モル)およびブタンジオール(0.0354モル)の混合物を、ジフェニルメタンジイソシアネート(MDI)(0.0454モル)と反応させることにより、重量平均分子量50,000および分散度1.6を有するポリウレタンを形成することで合成した。得られたポリウレタン溶液の室温粘度は、固形分25wt%で、約3000cPであった。界面活性剤は、配合物中に含まれなかった。
例4において、ポリウレタン溶液のウエット厚さ75milの層を17℃で製造したが、それをポリウレタン含浸不織ポリエステルフェルト基材上にコーティングした。基材(Dow Electronic Materials製)は、密度0.340g/cm3、圧縮率14%、厚さ49mil(1.2mm)および硬度49Shore DOであった。
例4においてポリウレタン溶液のウエット厚さ75milの層を、17℃で製造し、ポリウレタン含浸不織ポリエステルフェルト基材上にコーティングした。この基材(Dow Electronic Materials製)は、密度0.318g/cm3、圧縮率17%、厚さ44mil(1.1mm)および硬度39Shore DOを有した。
ポリウレタンを、DMF中で、ポリエチレンプロピレングリコールアジペート(0.0117モル)およびブタンジオール(0.0259モル)の混合物を、ジフェニルメタンジイソシアネート(MDI)(0.0373モル)と反応させることにより、重量平均分子量40,000および分散度1.6を有するポリウレタンを形成することにより合成した。このポリウレタン溶液をフィルム上にコーティングし、そして例4で述べたのと同じプロセス工程および条件を用いて、研磨パッドに変えた。
Claims (3)
- 磁性、光学および半導体基材の少なくとも1種の研磨に有効な研磨パッドであって、多孔質研磨層を含み、多孔質研磨層がポリウレタンマトリックス内に二重気孔構造を有し、二重気孔構造が第1の気孔群を有し、第1の気孔群が孔壁を有し、孔壁が厚さ15〜55μm、25℃で測定した貯蔵弾性率10〜60MPaを有し、および孔壁内に第2の気孔群を含有し、第2の気孔群の平均孔径が5〜30μmであり、および多孔質研磨層を、ポリマーフィルムまたはシート基材に固定するか、あるいは織物または不織構造に作って形成する研磨パッド。
- 第1の気孔の平均直径が、少なくとも35μmである、請求項1の研磨パッド。
- 孔壁の横断面内に位置する第2の気孔群の気孔率が、10〜55%である、請求項1又は2の研磨パッド。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/586,859 US8162728B2 (en) | 2009-09-28 | 2009-09-28 | Dual-pore structure polishing pad |
US12/586,859 | 2009-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011067945A JP2011067945A (ja) | 2011-04-07 |
JP5733497B2 true JP5733497B2 (ja) | 2015-06-10 |
Family
ID=43736347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010216044A Active JP5733497B2 (ja) | 2009-09-28 | 2010-09-27 | 二重気孔構造研磨パッド |
Country Status (7)
Country | Link |
---|---|
US (2) | US8162728B2 (ja) |
JP (1) | JP5733497B2 (ja) |
KR (1) | KR101697369B1 (ja) |
CN (1) | CN102029577B (ja) |
DE (1) | DE102010046258A1 (ja) |
FR (1) | FR2950557B1 (ja) |
TW (1) | TWI519385B (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8162728B2 (en) * | 2009-09-28 | 2012-04-24 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Dual-pore structure polishing pad |
TWI510328B (zh) * | 2010-05-03 | 2015-12-01 | Iv Technologies Co Ltd | 基底層、包括此基底層的研磨墊及研磨方法 |
JP5710353B2 (ja) * | 2011-04-15 | 2015-04-30 | 富士紡ホールディングス株式会社 | 研磨パッド及びその製造方法 |
US20150056895A1 (en) * | 2013-08-22 | 2015-02-26 | Cabot Microelectronics Corporation | Ultra high void volume polishing pad with closed pore structure |
JP6434266B2 (ja) * | 2013-12-17 | 2018-12-05 | 富士紡ホールディングス株式会社 | ラッピング用樹脂定盤及びそれを用いたラッピング方法 |
TWI565735B (zh) * | 2015-08-17 | 2017-01-11 | Nanya Plastics Corp | A polishing pad for surface planarization processing and a process for making the same |
KR102066363B1 (ko) * | 2015-10-29 | 2020-01-14 | 후루카와 덴키 고교 가부시키가이샤 | 연마 패드, 연마 패드를 사용한 연마 방법 및 그 연마 패드의 사용 방법 |
US10688621B2 (en) * | 2016-08-04 | 2020-06-23 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Low-defect-porous polishing pad |
US10106662B2 (en) * | 2016-08-04 | 2018-10-23 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Thermoplastic poromeric polishing pad |
US9925637B2 (en) * | 2016-08-04 | 2018-03-27 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Tapered poromeric polishing pad |
US10259099B2 (en) | 2016-08-04 | 2019-04-16 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Tapering method for poromeric polishing pad |
JP2019160996A (ja) | 2018-03-13 | 2019-09-19 | 東芝メモリ株式会社 | 研磨パッド、半導体製造装置、および半導体装置の製造方法 |
US11545365B2 (en) * | 2019-05-13 | 2023-01-03 | Chempower Corporation | Chemical planarization |
WO2023069557A1 (en) * | 2021-10-23 | 2023-04-27 | Rajeev Bajaj | Post cmp brush and method of manufacture |
CN114406895B (zh) * | 2022-01-14 | 2022-09-16 | 广东粤港澳大湾区黄埔材料研究院 | 高孔隙率高模量抛光层及其制备方法与抛光垫及其应用 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6458475A (en) * | 1987-08-25 | 1989-03-06 | Rodeele Nitta Kk | Grinding pad |
US4841680A (en) | 1987-08-25 | 1989-06-27 | Rodel, Inc. | Inverted cell pad material for grinding, lapping, shaping and polishing |
US6099954A (en) | 1995-04-24 | 2000-08-08 | Rodel Holdings, Inc. | Polishing material and method of polishing a surface |
US6284114B1 (en) | 1997-09-29 | 2001-09-04 | Rodel Holdings Inc. | Method of fabricating a porous polymeric material by electrophoretic deposition |
GB2334205B (en) | 1998-02-12 | 2001-11-28 | Shinetsu Handotai Kk | Polishing method for semiconductor wafer and polishing pad used therein |
JP2918883B1 (ja) * | 1998-07-15 | 1999-07-12 | 日本ピラー工業株式会社 | 研磨パッド |
US6095902A (en) | 1998-09-23 | 2000-08-01 | Rodel Holdings, Inc. | Polyether-polyester polyurethane polishing pads and related methods |
JP3697963B2 (ja) | 1999-08-30 | 2005-09-21 | 富士電機デバイステクノロジー株式会社 | 研磨布および平面研磨加工方法 |
EP1212171A1 (en) | 1999-12-23 | 2002-06-12 | Rodel Holdings, Inc. | Self-leveling pads and methods relating thereto |
JP2001244223A (ja) * | 2000-02-29 | 2001-09-07 | Hitachi Chem Co Ltd | 研磨パッド |
GB2360723B (en) * | 2000-04-01 | 2003-07-23 | Hire Technicians Group Ltd | Sanding machine clamp bar |
JP4916638B2 (ja) | 2000-06-30 | 2012-04-18 | ローム アンド ハース エレクトロニック マテリアルズ シーエムピー ホウルディングス インコーポレイテッド | 研磨パッド用ベースパッド |
US6852020B2 (en) * | 2003-01-22 | 2005-02-08 | Raytech Innovative Solutions, Inc. | Polishing pad for use in chemical—mechanical planarization of semiconductor wafers and method of making same |
US6913517B2 (en) | 2002-05-23 | 2005-07-05 | Cabot Microelectronics Corporation | Microporous polishing pads |
JP2004136432A (ja) | 2002-09-24 | 2004-05-13 | Nihon Micro Coating Co Ltd | 研磨布及びその製造方法 |
US7311862B2 (en) | 2002-10-28 | 2007-12-25 | Cabot Microelectronics Corporation | Method for manufacturing microporous CMP materials having controlled pore size |
US7267607B2 (en) | 2002-10-28 | 2007-09-11 | Cabot Microelectronics Corporation | Transparent microporous materials for CMP |
US7435165B2 (en) | 2002-10-28 | 2008-10-14 | Cabot Microelectronics Corporation | Transparent microporous materials for CMP |
JP4659338B2 (ja) * | 2003-02-12 | 2011-03-30 | Hoya株式会社 | 情報記録媒体用ガラス基板の製造方法並びにそれに使用する研磨パッド |
JP2004358584A (ja) | 2003-06-03 | 2004-12-24 | Fuji Spinning Co Ltd | 研磨布及び研磨加工方法 |
US6899602B2 (en) * | 2003-07-30 | 2005-05-31 | Rohm And Haas Electronic Materials Cmp Holdings, Nc | Porous polyurethane polishing pads |
JP4555559B2 (ja) | 2003-11-25 | 2010-10-06 | 富士紡ホールディングス株式会社 | 研磨布及び研磨布の製造方法 |
US8075372B2 (en) | 2004-09-01 | 2011-12-13 | Cabot Microelectronics Corporation | Polishing pad with microporous regions |
US20070117393A1 (en) | 2005-11-21 | 2007-05-24 | Alexander Tregub | Hardened porous polymer chemical mechanical polishing (CMP) pad |
US7287607B1 (en) * | 2006-08-04 | 2007-10-30 | Falgout Sr Thomas E | Directional drilling apparatus |
TWI341889B (en) * | 2006-09-06 | 2011-05-11 | Formosa Taffeta Co Ltd | Color-coated, fouling-resistant conductive clothes and manufacturing method thereof |
JP5297096B2 (ja) | 2007-10-03 | 2013-09-25 | 富士紡ホールディングス株式会社 | 研磨布 |
US8162728B2 (en) * | 2009-09-28 | 2012-04-24 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Dual-pore structure polishing pad |
-
2009
- 2009-09-28 US US12/586,859 patent/US8162728B2/en active Active
-
2010
- 2010-09-22 DE DE102010046258A patent/DE102010046258A1/de not_active Ceased
- 2010-09-24 TW TW099132302A patent/TWI519385B/zh active
- 2010-09-27 KR KR1020100093320A patent/KR101697369B1/ko active IP Right Grant
- 2010-09-27 JP JP2010216044A patent/JP5733497B2/ja active Active
- 2010-09-27 CN CN2010105070267A patent/CN102029577B/zh active Active
- 2010-09-27 FR FR1057763A patent/FR2950557B1/fr not_active Expired - Fee Related
-
2012
- 2012-03-16 US US13/422,180 patent/US8408977B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR2950557B1 (fr) | 2015-07-17 |
JP2011067945A (ja) | 2011-04-07 |
FR2950557A1 (fr) | 2011-04-01 |
CN102029577A (zh) | 2011-04-27 |
DE102010046258A1 (de) | 2011-05-12 |
US8408977B2 (en) | 2013-04-02 |
US20120171940A1 (en) | 2012-07-05 |
TW201132457A (en) | 2011-10-01 |
US8162728B2 (en) | 2012-04-24 |
US20110076928A1 (en) | 2011-03-31 |
CN102029577B (zh) | 2013-05-29 |
KR101697369B1 (ko) | 2017-01-17 |
KR20110034561A (ko) | 2011-04-05 |
TWI519385B (zh) | 2016-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5733497B2 (ja) | 二重気孔構造研磨パッド | |
US6419556B1 (en) | Method of polishing using a polishing pad | |
US10201886B2 (en) | Polishing pad and method for manufacturing the same | |
US7381121B2 (en) | Base pad polishing pad and multi-layer pad comprising the same | |
KR102373206B1 (ko) | 열가소성 다공성 연마 패드 | |
TW201841963A (zh) | 化學機械拋光墊 | |
TWI763693B (zh) | 錐形多孔性拋光墊 | |
CN113524023B (zh) | 形成杠杆式多孔抛光垫的方法 | |
KR102301910B1 (ko) | 다공성 연마 패드를 위한 테이퍼링 방법 | |
CN113524026B (zh) | 偏移孔式多孔抛光垫 | |
JP7010619B2 (ja) | 低欠陥多孔性研磨パッド | |
JP6587464B2 (ja) | 研磨パッド | |
JP7088647B2 (ja) | 研磨パッド及び研磨パッドの製造方法 | |
CN113524024B (zh) | 杠杆式多孔抛光垫 | |
JP2022156160A (ja) | 研磨パッド及びその製造方法 | |
JP6357291B2 (ja) | 研磨パッド | |
JP2024047977A (ja) | 研磨パッド、研磨パッドの製造方法、及び光学材料又は半導体材料の表面を研磨する方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20130704 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140521 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140527 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140821 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20141028 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150127 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150317 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150331 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5733497 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R157 | Certificate of patent or utility model (correction) |
Free format text: JAPANESE INTERMEDIATE CODE: R157 |