WO2019131448A1 - 研磨用組成物 - Google Patents
研磨用組成物 Download PDFInfo
- Publication number
- WO2019131448A1 WO2019131448A1 PCT/JP2018/047025 JP2018047025W WO2019131448A1 WO 2019131448 A1 WO2019131448 A1 WO 2019131448A1 JP 2018047025 W JP2018047025 W JP 2018047025W WO 2019131448 A1 WO2019131448 A1 WO 2019131448A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing composition
- polishing
- structural unit
- unit represented
- general formula
- 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.)
- Ceased
Links
- 0 CCC(CC)(*(C)C(C(CC)(C=C)N)N1*C1)N Chemical compound CCC(CC)(*(C)C(C(CC)(C=C)N)N1*C1)N 0.000 description 2
Classifications
-
- H10P90/129—
-
- 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
- B24B37/04—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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- 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
- C09K3/1409—Abrasive particles per se
-
- 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
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- H10P52/00—
Definitions
- the present invention relates to a polishing composition.
- Polishing of a semiconductor wafer by CMP realizes high-precision smoothing and planarization by performing multistage polishing in three or four stages.
- the final polishing process performed at the final stage mainly aims to reduce micro defects and haze (surface haze).
- the polishing composition used in the final polishing step of a semiconductor wafer generally contains a water-soluble polymer such as hydroxyethyl cellulose (HEC).
- HEC hydroxyethyl cellulose
- the water-soluble polymer plays a role of hydrophilizing the surface of the semiconductor wafer, and suppresses damage to the semiconductor wafer due to adhesion of abrasive grains to the surface, excessive chemical etching, aggregation of abrasive grains, and the like. It is known that this can reduce micro defects and haze.
- HEC is made of natural cellulose, it may contain water-insoluble impurities derived from cellulose. Therefore, in the polishing composition containing HEC, a slight defect may occur due to the influence of the impurity.
- HEC having a molecular weight of several hundred thousand to one million is often used, but as the molecular weight is higher, clogging of the filter is more likely to occur, and it is difficult to flow the filter with a small pore diameter. Therefore, when a water-soluble polymer having a large molecular weight is used, it becomes difficult to remove coarse particles.
- aggregation of the abrasive grains is also likely to occur, there is also concern in the long-term stability of the polishing composition.
- JP 2012-216723 A discloses a polishing composition containing at least one water-soluble polymer selected from vinyl alcohol resins having a 1,2-diol structural unit.
- a vinyl alcohol resin having a 1,2-diol structural unit in the polishing composition, micro defects and surface roughness of the semiconductor wafer after polishing can be reduced. This is considered to be because crystallization of polyvinyl alcohol is suppressed by introducing a modified group having a steric hindrance (1,2-diol structure).
- An object of the present invention is to provide a polishing composition which can further reduce micro defects and haze of a semiconductor wafer after polishing.
- the polishing composition according to one embodiment of the present invention comprises abrasive grains, a basic compound, and a vinyl alcohol resin having a 1,2-diol structural unit represented by the following general formula (1),
- the molar concentration of the structural unit represented by the following general formula (2) is 2 mol% or more in all the structural units.
- R 1 , R 2 and R 3 each independently represent a hydrogen atom or an organic group
- X represents a single bond or a linked chain
- R 4 , R 5 and R 6 each independently represent a hydrogen atom Or an organic group.
- minute defects and haze of a semiconductor wafer after polishing can be further reduced.
- the present inventors made various studies in order to solve the above-mentioned problems. As a result, the following findings were obtained.
- a water soluble polymer is added to hydrophilize the surface of the semiconductor wafer.
- the vinyl alcohol resin added to the polishing composition is generally a completely saponified product (having a degree of saponification of at least 98 mol%, since it is considered more preferable for this purpose as the number of hydrophilic hydroxyl groups is larger. ) Are used.
- the polishing composition according to one embodiment of the present invention comprises abrasive grains, a basic compound, and a vinyl alcohol resin having a 1,2-diol structural unit (hereinafter referred to as “modified PVA”).
- abrasive those conventionally used in this field can be used, and examples thereof include colloidal silica, fumed silica, colloidal alumina, fumed alumina and ceria, and colloidal silica or fumed silica is particularly preferable.
- the particle size of the abrasive is not particularly limited, for example, one having a secondary average particle size of 30 to 100 nm can be used.
- the content of the abrasive is not particularly limited, and is, for example, 0.10 to 20% by mass of the entire polishing composition.
- the polishing composition is used diluted 10 to 40 times at the time of polishing.
- the polishing composition according to the present embodiment is preferably used by diluting so that the concentration of abrasive grains is 100 to 5000 ppm (mass ppm, hereinafter the same). As the concentration of the abrasive grains is higher, micro defects and haze tend to be reduced.
- the lower limit of the concentration of abrasive grains after dilution is preferably 1000 ppm, and more preferably 2000 ppm.
- the upper limit of the concentration of abrasive grains after dilution is preferably 4000 ppm, and more preferably 3000 ppm.
- the basic compound etches and chemically polishes the surface of the semiconductor wafer.
- the basic compound is, for example, an amine compound, an inorganic alkali compound or the like.
- the amine compound is, for example, a primary amine, a secondary amine, a tertiary amine, a quaternary ammonium and its hydroxide, a heterocyclic amine or the like.
- ammonia tetramethylammonium hydroxide (TMAH), tetraethylammonium hydroxide (TEAH), tetrabutylammonium hydroxide (TBAH), methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, hexylamine, Cyclohexylamine, ethylenediamine, hexamethylenediamine, diethylenetriamine (DETA), triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, monoethanolamine, diethanolamine, triethanolamine, N- ( ⁇ -aminoethyl) ethanolamine, anhydrous piperazine , Piperazine hexahydrate, 1-
- the inorganic alkali compound examples include hydroxides of alkali metals, salts of alkali metals, hydroxides of alkaline earth metals, salts of alkaline earth metals and the like.
- the inorganic alkali compound is potassium hydroxide, sodium hydroxide, potassium hydrogencarbonate, potassium carbonate, sodium hydrogencarbonate, sodium carbonate or the like.
- the above-mentioned basic compounds may be used alone or in combination of two or more.
- hydroxides of alkali metals, salts of alkali metals, ammonia, amines, ammonium salts and quaternary ammonium hydroxides are particularly preferable.
- the content of the basic compound is not particularly limited.
- the mass ratio of the basic compound to the abrasive particles is as follows: It is .10.
- the polishing composition according to the present embodiment is preferably used by diluting so that the concentration of the basic compound is 5 to 200 ppm.
- the modified PVA is a vinyl alcohol resin having a 1,2-diol structural unit represented by the following general formula (1).
- R 1 , R 2 and R 3 each independently represent a hydrogen atom or an organic group
- X represents a single bond or a linked chain
- R 4 , R 5 and R 6 each independently represent a hydrogen atom Or an organic group.
- the "vinyl alcohol-based resin” refers to a water-soluble polymer containing the structural units represented by the following formulas (2) and (3).
- the modified PVA has a 1,2-diol structural unit represented by the formula (1) in addition to the structural units represented by the formulas (2) and (3). Thereby, crystallization of polyvinyl alcohol is suppressed, and micro defects and haze of the semiconductor wafer after polishing can be further reduced.
- the modification amount of the 1,2-diol structural unit in the polymer is not particularly limited, and is, for example, 1 to 20 mol%.
- R 1 to R 3 and R 4 to R 6 in the 1,2-diol structural unit represented by the general formula (1) are hydrogen atoms and X is a single bond.
- the average degree of polymerization of the modified PVA is not particularly limited, and is, for example, 200 to 3,000.
- the average degree of polymerization of the modified PVA can be measured in accordance with JIS K 6726.
- the lower limit of the mass ratio of the modified PVA to the abrasive grains is preferably 0.0050, and more preferably 0.0070.
- the polishing composition according to the present embodiment is preferably used by diluting it to a concentration of 10 to 200 ppm of modified PVA.
- concentration of denatured PVA after dilution is higher, micro defects and haze tend to be reduced.
- the lower limit of the concentration of modified PVA after dilution is preferably 20 ppm, more preferably 50 ppm.
- the modified PVA is produced, for example, by saponifying a copolymer of a vinyl ester monomer and a compound represented by the following general formula (4).
- R 1 , R 2 and R 3 each independently represent a hydrogen atom or an organic group
- X represents a single bond or a linked chain
- R 4 , R 5 and R 6 each independently represent a hydrogen atom
- R 7 and R 8 each independently represent a hydrogen atom or R 9 -CO- (R 9 is an alkyl group having 1 to 4 carbon atoms).
- the molar concentration of the structural unit represented by the following general formula (2) is 2 mol% or more in all the structural units.
- the molar concentration of the structural unit represented by Formula (2) in the modified PVA is higher, it is possible to further reduce microdefects and haze of the semiconductor wafer after polishing.
- the lower limit of the molar concentration of the structural unit represented by the formula (2) in the modified PVA is preferably 5 mol%, more preferably 10 mol%.
- the upper limit of the molar concentration of the structural unit represented by the formula (2) in the modified PVA is preferably 30 mol%, more preferably 20 mol%.
- the molar concentration (mol%) of the structural unit represented by the formula (2) in the modified PVA may be regarded as equal to 100 mol% minus the degree of saponification (mol%) of the modified PVA.
- the saponification degree of modified PVA shall be measured according to JISK6726 like PVA.
- the polishing composition according to the present embodiment may further contain a nonionic surfactant.
- a nonionic surfactant By including the nonionic surfactant, minute defects and haze can be further reduced.
- the nonionic surfactant suitable for the polishing composition according to the present embodiment is, for example, ethylenediaminetetrapolyoxyethylene polyoxypropylene (poloxamine), poloxamer, polyoxyalkylene alkyl ether, polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl Amine, polyoxyalkylene methyl glucoside and the like.
- polyoxyalkylene alkyl ether examples include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether and the like.
- polyoxyalkylene fatty acid esters include polyoxyethylene monolaurate and polyoxyethylene monostearate.
- polyoxyalkylene alkylamines examples include polyoxyethylene laurylamine and polyoxyethylene oleylamine.
- polyoxyalkylene methyl glucosides include polyoxyethylene methyl glucoside and polyoxypropylene methyl glucoside.
- the content of the nonionic surfactant is not particularly limited.
- the mass ratio of the abrasive to the abrasive grains abrasive grains: nonionic surfactant 1: 0 And .0001 to 1: 0.015.
- the polishing composition according to the present embodiment is preferably used by diluting so that the concentration of the nonionic surfactant is 0.5 to 30 ppm.
- the polishing composition according to the present embodiment may further contain a pH adjuster.
- the pH of the polishing composition according to the present embodiment is preferably 8.0 to 12.0.
- the polishing composition according to the present embodiment may optionally contain other compounding agents generally known in the field of polishing compositions, in addition to the above.
- the polishing composition according to the present embodiment is prepared by appropriately mixing abrasive grains, a basic compound, modified PVA and other compounding materials and adding water.
- the polishing composition according to the present embodiment is produced by sequentially mixing abrasives, a basic compound, modified PVA and other compounding materials with water.
- means commonly used in the technical field of polishing compositions such as homogenizers, ultrasonic waves and the like are used.
- the polishing composition described above is used for polishing a semiconductor wafer after being diluted with water so as to have an appropriate concentration.
- the polishing composition according to the present embodiment can be particularly suitably used for finish polishing of a silicon wafer.
- Polishing compositions of Examples 1 to 10 and Comparative Examples 1 to 4 shown in Table 1 were produced.
- the contents in Table 1 are all after dilution.
- the “particle size” in Table 1 represents the average secondary particle size of the abrasive grains.
- "NH 4 OH” represents an aqueous ammonia solution.
- Modified PVAs A to D represent butenediol vinyl alcohol polymers having different degrees of polymerization and saponification, respectively.
- PVA A and B represent polyvinyl alcohols having different degrees of saponification.
- the polishing compositions of these Examples and Comparative Examples were used to polish a 12-inch silicon wafer.
- the conductivity type of the silicon wafer was P-type, and the resistivity was at least 0.1 ⁇ cm and less than 100 ⁇ cm.
- the polished surface was a ⁇ 100> surface.
- the polishing apparatus used was SPP 800 S single-side polishing apparatus manufactured by Okamoto Machine Tool Mfg. Co., Ltd.
- the polishing pad suede pad.
- the polishing composition was diluted 31 times and fed at a feed rate of 1 L / min.
- the polishing speed was 40 rpm, the rotation speed of the carrier was 39 rpm, and the polishing load was 100 gf / cm 2 , and polishing was performed for 2 minutes.
- preliminary polishing for 3 minutes was carried out using a polishing slurry NP7050S (manufactured by Nitta Hearth Co., Ltd.).
- the minute defects and the haze of the silicon wafer after polishing were measured.
- the minute defects were measured using a wafer surface inspection apparatus MAGICS M5640 (manufactured by Lasertec).
- the haze was measured using a wafer surface inspection apparatus LS6600 (manufactured by Hitachi Engineering Co., Ltd.). The results are shown in the column of "Defect" and "Haze” in Table 1 above.
- Example 2 From the comparison between Example 2 and Example 4, and the comparison of Examples 7, 9 and 10, it is understood that the higher the concentration of the modified PVA, the smaller the tendency of micro defects is, if the other conditions are constant. .
- Example 2 From the comparison between Example 2 and Example 3, and the comparison between Example 7 and Example 8, it is found that the micro defects tend to be reduced as the concentration of the abrasive grains becomes higher, if the other conditions are constant. I understand.
- Polishing compositions of Examples 11 to 26 and Comparative Examples 5 to 8 shown in Tables 2 and 3 were produced.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
表1に示す実施例1~10、及び比較例1~4の研磨用組成物を作製した。
表2及び表3に示す実施例11~26、及び比較例5~8の研磨用組成物を作製した。
Claims (3)
- 請求項1に記載の研磨用組成物であって、
非イオン性界面活性剤をさらに含む、研磨用組成物。 - 請求項1又は2に記載の研磨用組成物であって、
前記塩基性化合物は、アルカリ金属酸化物、アルカリ金属塩、アンモニア、アミン、アンモニウム塩、及び第四級アンモニウム水酸化物類からなる群から選択される1種以上である、研磨用組成物。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG11202004727UA SG11202004727UA (en) | 2017-12-27 | 2018-12-20 | Polishing composition |
| KR1020207018293A KR102718153B1 (ko) | 2017-12-27 | 2018-12-20 | 연마용 조성물 |
| DE112018006626.6T DE112018006626T5 (de) | 2017-12-27 | 2018-12-20 | Polierzusammensetzung |
| CN201880084023.1A CN111527589B (zh) | 2017-12-27 | 2018-12-20 | 研磨用组合物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017252270A JP6978933B2 (ja) | 2017-12-27 | 2017-12-27 | 研磨用組成物 |
| JP2017-252270 | 2017-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019131448A1 true WO2019131448A1 (ja) | 2019-07-04 |
Family
ID=67067301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2018/047025 Ceased WO2019131448A1 (ja) | 2017-12-27 | 2018-12-20 | 研磨用組成物 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP6978933B2 (ja) |
| KR (1) | KR102718153B1 (ja) |
| CN (1) | CN111527589B (ja) |
| DE (1) | DE112018006626T5 (ja) |
| SG (1) | SG11202004727UA (ja) |
| TW (1) | TWI798325B (ja) |
| WO (1) | WO2019131448A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021162980A1 (en) * | 2020-02-13 | 2021-08-19 | Fujifilm Electronic Materials U.S.A, Inc. | Polishing compositions and methods of use thereof |
| WO2021162978A1 (en) * | 2020-02-13 | 2021-08-19 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of use thereof |
| CN114846109A (zh) * | 2019-12-24 | 2022-08-02 | 霓达杜邦股份有限公司 | 研磨用组合物 |
| CN114846110A (zh) * | 2019-12-27 | 2022-08-02 | 霓达杜邦股份有限公司 | 研磨用组合物及硅晶片的研磨方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7349309B2 (ja) * | 2019-09-30 | 2023-09-22 | 株式会社フジミインコーポレーテッド | シリコンウェーハ用研磨用組成物 |
| JP7450439B2 (ja) * | 2020-03-31 | 2024-03-15 | 株式会社フジミインコーポレーテッド | 研磨用組成物および磁気ディスク基板の製造方法 |
| JP7520457B2 (ja) * | 2020-07-30 | 2024-07-23 | 株式会社ディスコ | 研磨液 |
| KR102731706B1 (ko) * | 2021-09-10 | 2024-11-15 | 성균관대학교산학협력단 | 연마 조성물 및 이를 이용한 연마 방법 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012216723A (ja) * | 2011-04-01 | 2012-11-08 | Nitta Haas Inc | 研磨用組成物 |
| WO2014084091A1 (ja) * | 2012-11-30 | 2014-06-05 | ニッタ・ハース株式会社 | 研磨組成物 |
| JP2016124943A (ja) * | 2014-12-26 | 2016-07-11 | ニッタ・ハース株式会社 | 研磨用組成物 |
| WO2017069253A1 (ja) * | 2015-10-23 | 2017-04-27 | ニッタ・ハース株式会社 | 研磨用組成物 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2717353B1 (en) * | 2011-06-02 | 2016-11-02 | The Nippon Synthetic Chemical Industry Co., Ltd. | Coating agent composition for battery electrodes or separators |
| CN104245829B (zh) * | 2012-04-27 | 2017-03-01 | 日本合成化学工业株式会社 | 树脂组合物及其用途 |
| CN109392311B (zh) | 2016-06-08 | 2023-08-15 | 三井金属矿业株式会社 | 研磨液和研磨物的制造方法 |
-
2017
- 2017-12-27 JP JP2017252270A patent/JP6978933B2/ja active Active
-
2018
- 2018-12-20 SG SG11202004727UA patent/SG11202004727UA/en unknown
- 2018-12-20 CN CN201880084023.1A patent/CN111527589B/zh active Active
- 2018-12-20 KR KR1020207018293A patent/KR102718153B1/ko active Active
- 2018-12-20 DE DE112018006626.6T patent/DE112018006626T5/de active Pending
- 2018-12-20 WO PCT/JP2018/047025 patent/WO2019131448A1/ja not_active Ceased
- 2018-12-26 TW TW107147152A patent/TWI798325B/zh active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012216723A (ja) * | 2011-04-01 | 2012-11-08 | Nitta Haas Inc | 研磨用組成物 |
| WO2014084091A1 (ja) * | 2012-11-30 | 2014-06-05 | ニッタ・ハース株式会社 | 研磨組成物 |
| JP2016124943A (ja) * | 2014-12-26 | 2016-07-11 | ニッタ・ハース株式会社 | 研磨用組成物 |
| WO2017069253A1 (ja) * | 2015-10-23 | 2017-04-27 | ニッタ・ハース株式会社 | 研磨用組成物 |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4083152A4 (en) * | 2019-12-24 | 2023-04-05 | NITTA DuPont Incorporated | POLISHING COMPOSITION |
| TWI867124B (zh) * | 2019-12-24 | 2024-12-21 | 日商霓塔杜邦股份有限公司 | 研磨用組合物 |
| CN114846109A (zh) * | 2019-12-24 | 2022-08-02 | 霓达杜邦股份有限公司 | 研磨用组合物 |
| CN114846109B (zh) * | 2019-12-24 | 2024-06-07 | 霓达杜邦股份有限公司 | 研磨用组合物 |
| CN114846110A (zh) * | 2019-12-27 | 2022-08-02 | 霓达杜邦股份有限公司 | 研磨用组合物及硅晶片的研磨方法 |
| EP4083153A4 (en) * | 2019-12-27 | 2023-04-19 | NITTA DuPont Incorporated | POLISHING COMPOSITION AND METHOD OF POLISHING A SILICON WAFER |
| CN114846110B (zh) * | 2019-12-27 | 2024-05-28 | 霓达杜邦股份有限公司 | 研磨用组合物及硅晶片的研磨方法 |
| CN114945648A (zh) * | 2020-02-13 | 2022-08-26 | 富士胶片电子材料美国有限公司 | 抛光组合物及其使用方法 |
| US11414568B2 (en) | 2020-02-13 | 2022-08-16 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of use thereof |
| US11851585B2 (en) | 2020-02-13 | 2023-12-26 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of use thereof |
| WO2021162980A1 (en) * | 2020-02-13 | 2021-08-19 | Fujifilm Electronic Materials U.S.A, Inc. | Polishing compositions and methods of use thereof |
| WO2021162978A1 (en) * | 2020-02-13 | 2021-08-19 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of use thereof |
| US12371589B2 (en) | 2020-02-13 | 2025-07-29 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201930540A (zh) | 2019-08-01 |
| CN111527589A (zh) | 2020-08-11 |
| SG11202004727UA (en) | 2020-06-29 |
| JP6978933B2 (ja) | 2021-12-08 |
| JP2019117904A (ja) | 2019-07-18 |
| TWI798325B (zh) | 2023-04-11 |
| CN111527589B (zh) | 2024-09-10 |
| KR20200098547A (ko) | 2020-08-20 |
| KR102718153B1 (ko) | 2024-10-16 |
| DE112018006626T5 (de) | 2020-09-10 |
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