WO2017175894A1 - 연마패드 제조 방법 - Google Patents
연마패드 제조 방법 Download PDFInfo
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- WO2017175894A1 WO2017175894A1 PCT/KR2016/003562 KR2016003562W WO2017175894A1 WO 2017175894 A1 WO2017175894 A1 WO 2017175894A1 KR 2016003562 W KR2016003562 W KR 2016003562W WO 2017175894 A1 WO2017175894 A1 WO 2017175894A1
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- polishing
- polishing pad
- urethane prepolymer
- boiling point
- mixing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing 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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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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
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- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/127—Mixtures of organic and inorganic blowing agents
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
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- B29C44/34—Auxiliary operations
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- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
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- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2375/04—Polyurethanes
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Definitions
- the present invention relates to a method for manufacturing a polishing pad, and more particularly, to a method for manufacturing a polishing pad configured to enable the collection of slurry of a certain size.
- CMP Chemical mechanical planarization / chemical polishing
- Polishing speed and flatness are important in the CMP process, which are determined by the processing conditions of the polishing equipment and the polishing slurry and polishing pad, which are consumable members used.
- the polishing pad uniformly distributes the polishing slurry supplied in contact with the surface of the wafer on the wafer and causes physical removal by the abrasive particles inside the polishing slurry and the surface protrusions of the polishing pad.
- micropores are formed on the surface of the polishing pad by opening of the microporous material.
- the porous pore technology for the formation of micropores is limited to the use of a specific pore forming method.
- the conventional CMP process has not been made in the technical field requiring sophistication and detail because the size of the pores formed in the polishing pad is not formed to have a fine and constant range size.
- the average size of the pores included in the polishing pad should be at least 31 ⁇ m or less, and the variation thereof should be minimized.
- the average size of the pores produced by a technique using only one conventional inert gas does not satisfy these conditions.
- the conventional method of generating a pore using a chemical blowing agent is a method far from the generation of a pore of a uniform size by generating a pore of a large size of thousands from a small pore size of the pore at the same time.
- the present invention has been made to meet the above-mentioned conventional request, the object is to provide a polishing pad manufacturing method that can maximize the polishing performance and planarization performance by collecting the polishing slurry in a uniform and fine size during the CMP process .
- a method of manufacturing a polishing pad according to the present invention comprises the steps of: mixing a plurality of polymers to produce a urethane prepolymer having a viscosity of 20,000 cps (25 ° C.) to 40,000 cps (25 ° C.); Mixing an inert gas and a low boiling point blowing agent having a boiling point of 60 ° C. to 150 ° C. in the urethane prepolymer; Gelling and curing the resulting mixture in a predetermined mold to produce an abrasive layer comprising a porous pore.
- 5% to 40% of the inert gas and 0.1% to 10% of the low boiling point blowing agent may be mixed with the urethane prepolymer based on the total volume of the resulting mixture.
- the method may further include mixing the polypropylene glycol having a tetravalent or higher functional group to generate the urethane prepolymer, and forming a polyurethane having a three-dimensional bonding structure by mixing the resulting urethane prepolymer with a curing agent. .
- the polishing layer may be processed to distribute pores due to the opening of the porous pores on the surface.
- FIG. 1 is a cross-sectional view of a polishing pad according to an embodiment of the present invention
- FIG. 2 is a schematic view of a polishing apparatus equipped with the polishing pad of FIG. 1,
- FIG. 3 is a view showing a polyurethane structure according to the conventional method and the method according to the present invention
- FIG. 4 is a view showing a comparison of the CMP before and after the polishing pad surface produced by the conventional method and the method according to the present invention
- Figure 5 shows the pore size according to the urethane prepolymer viscosity in the manner according to the invention
- Figure 6 shows the pore size according to the blowing agent boiling point
- Figure 7 shows the pore size according to the inert gas content.
- 9 to 10 is a view showing a comparison between the polishing performance and the life performance of the polishing pad produced by the conventional method and the method according to the present invention.
- FIG. 11 is a view showing the state of the pore generated by each embodiment according to the present invention.
- FIG. 12 is a view showing a comparison of surface roughness and scratch related result values in a layer process of a polishing pad produced by a conventional method and a method according to the present invention.
- each embodiment according to the present invention is only one example to help understanding of the present invention, and the present invention is not limited to these embodiments.
- the present invention may be composed of a combination of at least one of individual functions or individual steps included in each embodiment.
- FIG. 1 is a cross-sectional view of a polishing pad 100 manufactured by a manufacturing method according to an embodiment of the present invention
- Figure 2 is a rotary polishing device for polishing a silicon wafer (7) using the polishing pad 100 ( 1) is shown.
- the polishing pad 100 includes a support layer 110 and a polishing layer 120.
- the support layer 110 is a portion that allows the polishing pad 100 to adhere to the platen 3 of the polishing apparatus 1.
- the support layer 110 is made of a material which is resilient to a force for pressing the silicon wafer 7 to be polished, which is loaded on the head 5 facing the platen 3, and thus the polishing layer formed thereon. It serves to support the 120 with a uniform elastic force corresponding to the silicon wafer (7).
- the hardness is lower than the polishing layer 120 formed thereon.
- the support layer 110 may be configured such that at least a portion of the support layer 110 is transparent or translucent to allow transmission of the light beam used to detect the flatness of the surface to be polished 160.
- the wafer 7 on which a to-be-polished film is formed is illustrated as a target to be polished, but various substrates such as a substrate, a glass substrate, a ceramic substrate, a polymer plastic substrate, and the like on which a TFT-LCD is to be formed are polished. Of course, it can be used as a target. In some cases, the polishing pad 100 may be configured without the support layer 110.
- FIG. 2 illustrates a case in which the shape of the polishing pad 100 is circular so as to be suitable for the rotary polishing apparatus 1, but the shape of the polishing pad 100 may be modified in various shapes such as a rectangle and a square according to the shape of the polishing apparatus 1. Of course.
- the polishing layer 120 is a portion in direct contact with the wafer 7 to be polished.
- the polishing layer 120 may be formed by mixing or chemically bonding a predetermined polishing layer 120 forming material. That is, the polymer matrix 130 forming the polishing layer 120 is made of various known components, and descriptions of known materials and forming materials may be omitted, and portions corresponding to the features of the present invention may be omitted. Explain mainly.
- the polymer matrix 130 is preferably formed of a material insoluble in the polishing slurry 13, which is a chemical solution for planarization.
- the polishing slurry 13 supplied through the nozzle 11 of the polishing equipment 1 may be formed of a material that cannot penetrate.
- the polymer matrix 130 may be formed by chemical bonding or physical mixing between the materials for forming the polymer matrix.
- the material for forming the polymer matrix here is polyurethane, polyether, polyester, polysulfone, polyacrylic, polycarbonate, polyethylene, polymethyl methacrylate, polyvinyl acetate, polyvinyl chloride, polyethylene imine, polyether sulfone, polyether It may correspond to any one selected from the group consisting of imide, polyketone, melamine, nylon and hydrocarbon fluoride or mixtures thereof.
- the polyalkylene glycol compound may be any one selected from the group consisting of compounds in which alkylene oxide is added to a compound containing water or active hydrogen or a mixture thereof.
- the present invention is characterized by mixing a polymer having a tetravalent or higher functional group, that is, a tetravalent or higher hydroxyl group (-OH) (eg, polypropylene glycol) to generate a polymer matrix 130.
- a polymer having a tetravalent or higher functional group that is, a tetravalent or higher hydroxyl group (-OH) (eg, polypropylene glycol) to generate a polymer matrix 130.
- a polymer having a tetravalent or higher functional group that is, a tetravalent or higher hydroxyl group (-OH) (eg, polypropylene glycol)
- the polishing layer 120 is made of polyurethane
- the polyurethane structure produced by the conventional method is relatively flexible due to the large number of repetitive two-dimensional bonds of the ⁇ CO molecules as shown in FIG. flexible).
- the formed polyurethane structure is 3 having a high degree of crosslinking as shown in FIG. 3 (c).
- the dimensional structure further has a network structure, which is much more rigid than in the prior art.
- the polymer having a tetravalent or higher hydroxyl group is included in an amount of 1% to 30% based on the mass of the produced urethane prepolymer.
- the weight ratio of the polymer having a tetravalent or higher hydroxyl group to the urethane prepolymer is determined. 1% to 30% is to mix.
- the weight ratio of the polymer having a tetravalent or higher hydroxyl group is smaller than 1% of the total urethane prepolymer, the possibility of the three-dimensional bonds caused by the polymer having a tetravalent or higher hydroxyl group decreases rapidly, and thus does not significantly affect the degree of crosslinking.
- the weight ratio of the polymer having a tetravalent or higher hydroxyl group is greater than 30% of the total urethane prepolymer, the physical properties of the tetravalent flexible abrasive body are considerably reduced, and rather, controlling the urethane prepolymer during the polishing layer production process The problem is that it is quite difficult physically.
- the polymer having a tetravalent or higher hydroxyl group is preferably to be mixed in an amount of 1% to 30% based on the weight of the total urethane prepolymer produced.
- the pore pore 141 ′ region on the surface 160 of the polishing pad 100 is blocked by urethane as the CMP process progresses, causing the glazing to gradually wear around the pores due to high pressure and friction. Crushing) occurs in the case of the polyurethane having a network structure as in the present invention has the effect of maintaining the form of the pore continuously during the life (life) time of the polishing pad 100 is CMP.
- Figure 4 is a comparison of the effects of the conventional and the present invention.
- FIG. 4 (a ′) is an enlarged photograph of the surface 160 before the CMP process of the polishing pad 100 produced by the conventional method
- FIG. 4 (b ′) is a polishing pad 100 produced by the conventional method. It is an enlarged photograph of the surface 160 after the CMP process.
- FIG. 4 (a) is an enlarged photograph of the surface 160 before the CMP process of the polishing pad 100 produced by the method according to the present invention
- FIG. 4 (b) is the polishing pad produced by the method of the present invention. It is an enlarged photograph of the surface 160 after the CMP process of (100).
- the polishing performance should be kept constant during the life time when the polishing pad 100 is used in the CMP process.
- the polishing performance gradually decreases.
- a problem arises that the use time of the polishing pad 100 is limited. If the shape of the pore is maintained continuously as in the present invention, the polishing performance of the polishing pad 100 is kept constant without deterioration. It brings a lifespan improvement effect, it is possible to reduce the cost of replacing the polishing pad 100.
- a polymer prepolymer is produced in an intermediate process of generating the polymer matrix 130, and the viscosity of the polymer prepolymer is preferably 20,000 cps (25 ° C.) to 40,000 cps (25 ° C.).
- the viscosity of the polymer prepolymer is to determine the pore size to be produced together with the inert gas and low boiling point foaming agent for producing the porous pores in the polishing layer 120, as described below, a detailed description thereof will be described later.
- the polishing layer 120 may include a porous pore, which is generated by mixing an inert gas and a low boiling point blowing agent as described below, and when the other conditions are the same, by the mixing ratio of the inert gas and the low boiling point blowing agent. Control over the pore size can be made.
- the porous layer may be included in the polishing layer 120.
- the surface 160 of the polishing layer 120 in direct contact with the wafer 7 includes a plurality of micropores defined and opened by the porous pore 141.
- each porous pore 141 the meaning that the pores 141 ′ are defined and opened by each porous pore 141 means that the porous pores by the inert gas and the low boiling point blowing agent included in the polishing layer 120 leak to the outside and the corresponding inert gas and This means that the pore region by the low boiling point foaming agent remains as the pores 141 ′ to capture certain substances from the outside.
- the embedded porous pores 141 are continuously exposed to the surface 160 of the polishing layer 120 to form pores 141 ', which are applied to the polishing slurry 13. It is substituted by. Accordingly, since only the polymer matrix 130, which is the material of the polishing layer 120, exists on the polishing surface 160, the non-uniform wear of the polishing pad 100 does not occur, and thus the silicon wafer 7 to be polished can be uniformly polished.
- the porous pores included in the polishing pad 100 are produced by the inert gas and the low boiling point blowing agent as described above.
- the inert gas may mean a chemically stable gas having a valence of '0', such as helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), etc. It is contained in such an inert gas. Furthermore, the inert gas corresponds to any gas that does not react with the polymer matrix 130, such as N2, but does not participate in the urethane reaction, in addition to the Group 8 elements of the periodic table.
- a chemically stable gas having a valence of '0' such as helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), etc. It is contained in such an inert gas.
- the inert gas corresponds to any gas that does not react with the polymer matrix 130, such as N2, but does not participate in the urethane reaction, in addition to the Group 8 elements of
- the blowing agent is mixed with a predetermined raw material to generate a large amount of bubbles by vaporization or reaction by heat, and may be largely classified into a chemical blowing agent and a physical blowing agent.
- Water is used as a blowing agent because chemical blowing agent is foamed from carbon dioxide generated by reaction with water using isocyanate group activity. Physical blowing agent mixes gas or generates heat of reaction using decomposition or evaporation blowing agent. As it forms bubbles, it does not participate in the polymer reaction. Types and features of these blowing agents are only known in the art, and thus will not be described in more detail.
- the pore size in the polishing pad 100 is preferably generated uniformly, and for the micro process in the semiconductor field and the like, it is preferable to generate the fine pore size (particularly 31 ⁇ m or less) in micro units.
- a plurality of polymers are mixed to produce a urethane prepolymer having a viscosity of 20,000 cps (25 ° C.) to 40,000 cps (25 ° C.).
- the production of the urethane prepolymer per se is a general technique, but the present embodiment is characterized in that the resulting urethane prepolymer has a viscosity of 20,000 cps (25 ° C.) to 40,000 cps (25 ° C.).
- the polyurethane of the three-dimensional bonding structure is formed by mixing the resulting urethane prepolymer and the curing agent.
- the effects of the three-dimensional coupling structure are as described above.
- the urethane prepolymer is mixed with an inert gas and a low boiling point blowing agent having a boiling point of 60 ° C to 150 ° C.
- the mixing ratio of the inert gas and the low boiling point blowing agent is such that the inert gas is 5% to 40% based on the total volume of the resulting mixture, and the low boiling point blowing agent is 0.1% to 10%.
- the gelation and curing reaction proceeds (S110). That is, the mixture is injected into a mold of a predetermined shape and solidified through gelation and curing.
- the gelation reaction may be performed at 80 to 90 degrees for 5 to 30 minutes, and the curing reaction may be performed at 80 to 120 degrees for 20 to 24 hours, but the specific process temperature and time may be variously changed to find an optimal condition.
- the specific process temperature and time may be variously changed to find an optimal condition.
- Processing includes demolding, cutting, surface 160 processing and cleaning.
- the cured reactant is taken out of the mold and cut to have a predetermined thickness, shape and shape.
- the polishing layer 120 may be formed into a sheet by any method known in the art of polymer sheet manufacturing such as casting and extrusion molding to improve productivity.
- the polishing layer 120 is completed through a washing process.
- the liquid microelements 141 of the surface 160 of the polishing layer 120 are eluted to distribute pores 141 ′ open to the surface 160 of the polishing layer 120.
- the polishing pad 100 may be completed using only the polishing layer 120, if necessary, the support layer 110 may be manufactured by a method well known in the manufacturing process of the polishing pad 100, and the support layer 110 and the polishing layer ( 120 may be combined to complete the polishing pad 100.
- pores having a fine and uniform size may be generated in the polishing layer 120, which cannot be compared with the conventional art.
- Figure 5 shows the pore (pore generated in the polishing layer 120) size according to the urethane prepolymer viscosity when the inert gas 5%, blowing agent 10%, foaming agent boiling point 60 degrees
- Figure 6 is the urethane prepolymer viscosity 20,000 cps (25 ° C.), the pore size according to the blowing agent boiling point when 5% of the inert gas and 10% of the blowing agent is shown
- FIG. 7 shows the pore size according to the inert gas content.
- the average pore size produced when the viscosity of the urethane prepolymer is 4,000 cps is 180 um, 80 um at 10,000 cps, 45 um at 15,000 cps, 31 um at 20,000 cps, 26 um at 30,000 cps, and 40,000 cps days. You can see that it is 25um when 26um and 52,000 cps.
- the viscosity of the urethane prepolymer is more than 40,000cps (25 ° C)
- the viscosity of a urethane prepolymer is 40,000 cps (25 degreeC) or less.
- the average pore size produced when the blowing agent boiling point is 40 ° C is 60um, 31um when the blowing agent boiling point is 60 ° C, 28um when the blowing agent boiling point is 80 ° C, 26um when the blowing agent boiling point is 100 ° C, and the boiling point of the blowing agent is 60 ° C. It can be seen that at 120 ° C., 24 ⁇ m and the blowing agent boiling point at 150 ° C. are 21 ⁇ m.
- blowing agent having a boiling point of 150 ° C. or less.
- the pore size is changed as the ratio of the inert gas and the low boiling point blowing agent is changed, and when the inert gas is 5% or more and the low boiling point blowing agent is 10% or less, the pore of 31 ⁇ m or less is produced. Able to know. In the case where the volume ratio of the inert gas exceeds 30%, the specific gravity of the polishing pad is lowered, thereby lowering the polishing efficiency inherent in the polishing pad. Therefore, the volume fraction of the inert gas should not exceed 30%.
- the low boiling point foaming agent should be mixed in a volume ratio of at least 0.1% or more. If the mixing volume ratio of the low boiling point foaming agent is less than 0.1%, there is a problem in that uniform and fine pores are not generated as if only inert gas is present.
- the mixing volume ratio of the low boiling point blowing agent should be at least 0.1%.
- the viscosity of the prepared isocyanate prepolymer was 35,000 cps (25 ° C.).
- the casting machine is used to discharge 100 kg of isocyanate prepolymer of Experimental Example 1, 29 kg of MOCA, and an inert gas through a mixing head of 5000 rpm. At this time, N2 gas, an inert gas, is administered to the mixing head by volume ratio.
- the mixture is then immediately poured into a square mold.
- the injected reaction solution had a TFT of 1 minute and gelled for 30 minutes, and then cured for 20 hours in an oven at 100 ° C.
- the prepared cured product was taken out of the mold, and the surface 160 was cut to prepare the polishing layer 120 of the polishing pad 100.
- the average pore size of the surface 160 of the polishing layer 120 is approximately 40 ⁇ m or more, and the pore image is as shown in FIG. 8 (a). This is produced by the conventional method, and the polishing performance, life time, and the like of the polishing pad 100 thus produced are shown in FIGS. 9 to 10.
- FIGS. 9 to 10 also show performance data of the polishing pad 100 including the solid capsule pore and the liquid pore by the conventional method in addition to the Experimental Example 3.
- the casting machine is used to discharge 100 kg of isocyanate prepolymer of Experimental Example 2 and 29 kg of MOCA, an inert gas and a low boiling point blowing agent through a mixing head of 5000 rpm.
- inert gas N2 gas is 10% by volume ratio and low boiling point blowing agent is administered to the mixing head by 8%.
- the mixture is then immediately poured into a square mold.
- the injected reaction solution had a TFT of 1 minute and gelled for 30 minutes, and then cured for 20 hours in an oven at 100 ° C.
- the prepared cured product was taken out of the mold, and the surface 160 was cut to prepare the polishing layer 120 of the polishing pad 100.
- the average pore size of the surface 160 of the polishing layer 120 is 29 um, and the pore images are shown in FIGS. 8B and 11. Comparing FIG. 8 (b) with FIG. 8 (a), it can be seen that the average size of the pores is smaller and the size change is quite uniform. That is, even in the conventional method, as shown in FIG. 8 (b), a pore having a size of 31 ⁇ m or less among individual pores may be generated. Can be.
- the average pore size of the resulting pore is less than 31um and as uniform as possible is possible only if the specific conditions according to the present invention are satisfied.
- the casting machine is used to discharge 100 kg of isocyanate prepolymer of Experimental Example 2 and 29 kg of MOCA, an inert gas and a low boiling point blowing agent through a mixing head of 5000 rpm. At this time, inert gas N2 gas is 15% by volume ratio and low boiling point blowing agent is 6% by mixing head.
- the mixture is then immediately poured into a square mold.
- the injected reaction solution had a TFT of 1 minute and gelled for 30 minutes, and then cured for 20 hours in an oven at 100 ° C.
- the prepared cured product was taken out of the mold, and the surface 160 was cut to prepare the polishing layer 120 of the polishing pad 100.
- the average pore size of the surface 160 of the polishing layer 120 is 27 um, and the pore image is shown in FIG. Polishing performance and life time performance are shown in FIGS. 9 to 10.
- the casting machine is used to discharge 100 kg of isocyanate prepolymer of Experimental Example 2 and 29 kg of MOCA, an inert gas and a low boiling point blowing agent through a mixing head of 5000 rpm. At this time, inert gas N2 gas is 18% by volume ratio and low boiling point blowing agent is administered to the mixing head by 4%.
- the mixture is then immediately poured into a square mold.
- the injected reaction solution had a TFT of 1 minute and gelled for 30 minutes, and then cured in an oven at 100 ° C. for 20 hours.
- the prepared cured product was taken out of the mold, and the surface 160 was cut to prepare the polishing layer 120 of the polishing pad 100.
- the average pore size of the surface 160 of the polishing layer 120 is 24 um, and the pore image is shown in FIG.
- the casting machine is used to discharge 100 kg of isocyanate prepolymer of Experimental Example 2 and 29 kg of MOCA, an inert gas and a low boiling point blowing agent through a mixing head of 5000 rpm.
- inert gas N2 gas is 20% by volume ratio and low boiling point foaming agent is administered to the mixing head by 2.0%.
- the mixture is then immediately poured into a square mold.
- the injected reaction solution had a TFT of 1 minute and gelled for 30 minutes, and then cured in an oven at 100 ° C. for 20 hours.
- the prepared cured product was taken out of the mold, and the surface 160 was cut to prepare the polishing layer 120 of the polishing pad 100.
- the average pore size of the surface 160 of the polishing layer 120 is 21 um, and the pore image is shown in FIG. 11).
- the pore size in the polishing pad can be made small and uniformly by the method according to the present invention, which shortens the distance between the pore and the pore.
- the Rsm value was lowered on the surface roughness parameter, thereby improving the CMP performance of the polishing pad.
- the temperature of the inert gas and the low boiling point blowing agent may be selected from a range of 60 ° C to 150 ° C.
- the present invention is not limited to the above specific embodiments, but can be modified and modified in various ways without departing from the gist of the present invention.
- the size of the pores generated in the polishing pad may be 31 ⁇ m or less, so that a CMP process that conforms to a semiconductor process refined to 10 nm may be achieved.
- the size change of the pore size is minimized, that is, the pores have a fairly uniform size, thereby ensuring the reliability of the performance of the polishing pad.
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Abstract
Description
Claims (6)
- (a) 복수의 폴리머를 혼합하여 점도 20,000cps(25℃) ~ 40,000cps(25℃)의 우레탄 예비중합체를 생성하는 단계와;(b) 상기 (a) 단계의 우레탄 예비중합체에 불활성 기체와 비점이 60℃ ~ 150℃인 저비점 발포제를 혼합하는 단계와;(c) 상기 (b) 단계를 통해 생성된 혼합물을 소정의 주형에서 겔화 및 경화시켜 다공성 포어를 포함하는 연마층을 제조하는 단계를 포함하는 것을 특징으로 하는 연마 패드의 제조방법.
- 제1항에 있어서,상기 (b) 단계에서는 상기 (b) 단계에서 생성되는 혼합물의 전체 부피를 기준으로 5% ~ 30%의 불활성 기체와, 0.1% ~ 10%의 저비점 발포제를 상기 (a) 단계의 우레탄 예비중합체에 혼합하여 생성되는 포어들의 평균적인 사이즈가 31um 이하가 되도록 하는 것을 특징으로 하는 연마 패드의 제조방법.
- 제1항에 있어서,상기 (a) 단계에서는 4가 이상의 수산기를 가진 폴리머를 혼합하여 상기 우레탄 예비중합체를 생성하고,생성된 우레탄 예비중합체와 경화제의 혼합에 의해 3차원 결합 구조의 폴리우레탄을 형성하여 단계를 더 포함하여 글래이징 현상 발생을 억제한 연마층을 생성하는 것을 특징으로 하는 연마 패드의 제조방법.
- 제3항에 있어서,상기 우레탄 예비중합체를 생성하기 위해 혼합하는 폴리머는 폴리프로필렌글리콜, 폴리우레탄, 폴리에테르, 폴리에스테르, 폴리술폰, 폴리아크릴, 폴리카보네이트, 폴리에틸렌, 폴리메틸 메타크릴레이트, 폴리비닐 아세테이트, 폴리비닐 클로라이드, 폴리에틸렌 이민, 폴리에테르 술폰, 폴리에테르 이미드, 폴리케톤, 멜라민, 나일론 및 불화탄화수소로 이루어진 그룹에서 선택된 어느 하나 또는 이들의 혼합물인 것을 특징으로 하는 연마 패드의 제조방법.
- 제3항에 있어서,상기 4가 이상의 수산기를 가진 폴리머는 생성되는 우레탄 예비중합체의 질량을 기준으로 1% ~ 30% 함량으로 포함되는 것을 특징으로 하는 연마 패드의 제조방법.
- 제1항에 있어서,상기 연마층을 가공하여 표면에 상기 다공성 포어의 개방에 의한 기공들을 분포시키는 단계를 더 포함하는 것을 특징으로 하는 연마 패드의 제조방법.
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PCT/KR2016/003562 WO2017175894A1 (ko) | 2016-04-06 | 2016-04-06 | 연마패드 제조 방법 |
JP2017529389A JP6444507B2 (ja) | 2016-04-06 | 2016-04-06 | 研磨パッドの製造方法 |
SG11201704554SA SG11201704554SA (en) | 2016-04-06 | 2016-04-06 | Method of manufacturing polishing pad |
EP16858489.4A EP3442007B1 (en) | 2016-04-06 | 2016-04-06 | Method for manufacturing polishing pad |
US15/534,828 US10457790B2 (en) | 2016-04-06 | 2016-04-06 | Method of manufacturing polishing pad |
CN201680003771.3A CN107646138B (zh) | 2016-04-06 | 2016-04-06 | 研磨垫制造方法 |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5578362A (en) | 1992-08-19 | 1996-11-26 | Rodel, Inc. | Polymeric polishing pad containing hollow polymeric microelements |
KR20010002696A (ko) | 1999-06-16 | 2001-01-15 | 고석태 | 세포조직 구조의 미세 중공 폴리머 다발을 갖는 폴리싱 패드 및 그 제조방법 |
KR20010055971A (ko) | 1999-12-13 | 2001-07-04 | 김진우 | 연마 패드 |
KR20080009489A (ko) * | 2006-07-24 | 2008-01-29 | 에스케이씨 주식회사 | 고분자 쉘로 둘러싸인 액상 유기물 코어를 포함하는 cmp연마패드 및 그 제조방법 |
JP2010082719A (ja) * | 2008-09-30 | 2010-04-15 | Fujibo Holdings Inc | 研磨パッドおよびその製造方法 |
JP2010240777A (ja) * | 2009-04-06 | 2010-10-28 | Nitta Haas Inc | 研磨パッド |
JP2013248693A (ja) * | 2012-05-31 | 2013-12-12 | Fujibo Holdings Inc | 研磨パッド |
KR20150024296A (ko) * | 2014-12-01 | 2015-03-06 | 케이피엑스케미칼 주식회사 | 연마패드 제조방법 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2613441B2 (ja) * | 1988-07-18 | 1997-05-28 | トヨタ自動車株式会社 | 発泡ポリウレタンの製法 |
DE19618392A1 (de) * | 1996-05-08 | 1997-11-13 | Basf Ag | Verfahren zur Herstellung von elastischen Polyurethan-Formkörpern mit kompakter Oberfläche und zelligem Kern |
JP3826702B2 (ja) * | 2000-10-24 | 2006-09-27 | Jsr株式会社 | 研磨パッド用組成物及びこれを用いた研磨パッド |
US7579071B2 (en) * | 2002-09-17 | 2009-08-25 | Korea Polyol Co., Ltd. | Polishing pad containing embedded liquid microelements and method of manufacturing the same |
US7066801B2 (en) * | 2003-02-21 | 2006-06-27 | Dow Global Technologies, Inc. | Method of manufacturing a fixed abrasive material |
JP4324785B2 (ja) * | 2003-04-15 | 2009-09-02 | Jsr株式会社 | 研磨パッドの製造方法 |
US20040224622A1 (en) * | 2003-04-15 | 2004-11-11 | Jsr Corporation | Polishing pad and production method thereof |
CN1980967B (zh) * | 2004-05-12 | 2012-03-28 | 弗里茨·瑙尔股份公司 | 挠性聚氨酯泡沫 |
WO2005108455A2 (en) * | 2004-05-12 | 2005-11-17 | Fritz Nauer Ag. | Flexible polyurethane foam |
US7160930B2 (en) * | 2004-07-14 | 2007-01-09 | Baysystems North America Llc | Water blown polyurethane spray foam system |
KR101061145B1 (ko) * | 2006-04-19 | 2011-08-31 | 도요 고무 고교 가부시키가이샤 | 연마 패드의 제조 방법 |
JP4261586B2 (ja) * | 2007-01-15 | 2009-04-30 | 東洋ゴム工業株式会社 | 研磨パッドの製造方法 |
US20090062414A1 (en) | 2007-08-28 | 2009-03-05 | David Picheng Huang | System and method for producing damping polyurethane CMP pads |
JP5297026B2 (ja) * | 2007-11-27 | 2013-09-25 | 富士紡ホールディングス株式会社 | 研磨パッドの製造方法 |
US8697239B2 (en) * | 2009-07-24 | 2014-04-15 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Multi-functional polishing pad |
JP5423220B2 (ja) * | 2009-08-06 | 2014-02-19 | 日本電気株式会社 | プリント基板データ生成システム、プリント基板データ生成方法、及びプリント基板データ生成プログラム |
EP2463329A1 (en) * | 2010-12-09 | 2012-06-13 | Dow Global Technologies LLC | "Method of molding rigid polyurethane foams" |
JP2013086217A (ja) * | 2011-10-19 | 2013-05-13 | Dic Corp | 研磨パッド用ウレタン樹脂組成物、ポリウレタン研磨パッド及びポリウレタン研磨パッドの製造方法 |
KR20130095430A (ko) * | 2012-02-20 | 2013-08-28 | 케이피엑스케미칼 주식회사 | 연마패드 및 그 제조방법 |
KR101417274B1 (ko) * | 2012-05-23 | 2014-07-09 | 삼성전자주식회사 | 연마패드 및 그 제조방법 |
US9259821B2 (en) * | 2014-06-25 | 2016-02-16 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing layer formulation with conditioning tolerance |
-
2016
- 2016-04-06 WO PCT/KR2016/003562 patent/WO2017175894A1/ko active Application Filing
- 2016-04-06 CN CN201680003771.3A patent/CN107646138B/zh active Active
- 2016-04-06 US US15/534,828 patent/US10457790B2/en active Active
- 2016-04-06 JP JP2017529389A patent/JP6444507B2/ja active Active
- 2016-04-06 EP EP16858489.4A patent/EP3442007B1/en active Active
- 2016-04-06 SG SG11201704554SA patent/SG11201704554SA/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5578362A (en) | 1992-08-19 | 1996-11-26 | Rodel, Inc. | Polymeric polishing pad containing hollow polymeric microelements |
KR20010002696A (ko) | 1999-06-16 | 2001-01-15 | 고석태 | 세포조직 구조의 미세 중공 폴리머 다발을 갖는 폴리싱 패드 및 그 제조방법 |
KR20010055971A (ko) | 1999-12-13 | 2001-07-04 | 김진우 | 연마 패드 |
KR20080009489A (ko) * | 2006-07-24 | 2008-01-29 | 에스케이씨 주식회사 | 고분자 쉘로 둘러싸인 액상 유기물 코어를 포함하는 cmp연마패드 및 그 제조방법 |
JP2010082719A (ja) * | 2008-09-30 | 2010-04-15 | Fujibo Holdings Inc | 研磨パッドおよびその製造方法 |
JP2010240777A (ja) * | 2009-04-06 | 2010-10-28 | Nitta Haas Inc | 研磨パッド |
JP2013248693A (ja) * | 2012-05-31 | 2013-12-12 | Fujibo Holdings Inc | 研磨パッド |
KR20150024296A (ko) * | 2014-12-01 | 2015-03-06 | 케이피엑스케미칼 주식회사 | 연마패드 제조방법 |
Non-Patent Citations (1)
Title |
---|
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CN107646138A (zh) | 2018-01-30 |
CN107646138B (zh) | 2020-11-06 |
EP3442007B1 (en) | 2020-11-25 |
US20180118908A1 (en) | 2018-05-03 |
EP3442007A1 (en) | 2019-02-13 |
EP3442007A4 (en) | 2019-10-09 |
US10457790B2 (en) | 2019-10-29 |
JP6444507B2 (ja) | 2018-12-26 |
JP2018521860A (ja) | 2018-08-09 |
SG11201704554SA (en) | 2017-11-29 |
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