WO2016143797A1 - 研磨剤、研磨剤用貯蔵液及び研磨方法 - Google Patents
研磨剤、研磨剤用貯蔵液及び研磨方法 Download PDFInfo
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- WO2016143797A1 WO2016143797A1 PCT/JP2016/057222 JP2016057222W WO2016143797A1 WO 2016143797 A1 WO2016143797 A1 WO 2016143797A1 JP 2016057222 W JP2016057222 W JP 2016057222W WO 2016143797 A1 WO2016143797 A1 WO 2016143797A1
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- Prior art keywords
- abrasive
- polishing
- resin
- water
- acid
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Classifications
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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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/18—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of taps or reamers
- B24B3/20—Tapering or chamfering taps or reamers
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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
-
- 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
- B24B37/005—Control means for lapping machines or devices
- B24B37/0056—Control means for lapping machines or devices taking regard of the pH-value of lapping agents
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- 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
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- 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
- C09K3/1436—Composite particles, e.g. coated particles
-
- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
- H10P50/73—Etching of wafers, substrates or parts of devices using masks for insulating materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
- H10P95/08—Planarisation of organic insulating materials
Definitions
- the present invention relates to an abrasive, a storage solution for an abrasive, and a polishing method for removing at least a part of the resin by chemical mechanical polishing (hereinafter, sometimes referred to as “CMP”) of a substrate having a resin.
- CMP chemical mechanical polishing
- CMP semiconductor integrated circuits
- a substrate having a substrate 1 and a silicon oxide 2 having a predetermined pattern and formed on the substrate 1 is prepared (FIG. 1A).
- a photoresist 3 is formed on the substrate 1 and the silicon oxide 2 (FIG. 1B).
- the entire surface layer portion of the photoresist 3 is removed by dry etching so that the photoresist 3 having a predetermined thickness remains on the silicon oxide 2 (FIG. 1C).
- a predetermined portion on the silicon oxide 2 in the photoresist 3 is removed by an exposure and development process to form a groove 4 in the photoresist 3 (FIG. 1D).
- the portion of the silicon oxide 2 exposed at the groove 4 is removed by dry etching (FIG. 1 (e)).
- the photoresist 3 is stripped to obtain silicon oxide 2 having a predetermined pattern (FIG. 1 (f)).
- the composition of the polishing slurry for CMP generally differs depending on the object to be polished (the substance to be removed and the substance that remains without being removed).
- Abrasives for CMP of the resin are only slightly known (see, for example, Patent Document 3). With abrasives for other uses (for example, for glass polishing, STI formation, and metal material polishing), it is difficult to remove the resin by polishing.
- abrasives for CMP are abrasives for polishing relatively hard materials such as insulating materials (excluding resins) and metal materials.
- the mechanical action of abrasive grains contained in the abrasive for CMP is used. Polishing is in progress.
- the resin contains an organic compound as a main component and is a soft material as compared with an insulating material (excluding the resin) and a metal material. Therefore, when the resin is polished using a conventional CMP abrasive, the mechanical action of the abrasive grains is dispersed. Therefore, the polishing hardly progresses or the polishing proceeds while damaging the resin.
- the present invention is intended to solve the above-described problems, and an object of the present invention is to provide an abrasive capable of removing a resin at a good polishing rate, an abrasive storage solution, and a polishing method.
- the present inventors have used abrasive grains having a positive charge in the abrasive and having an average particle diameter of more than 20 nm, a water-soluble polymer having an ether bond, and an organic solvent. Thus, it was found that the resin can be removed at a good polishing rate.
- the abrasive for polishing a resin according to the present invention contains abrasive grains, a water-soluble polymer having an ether bond, an organic solvent, and water, and the abrasive grains have a positive charge in the abrasive.
- the average grain size of the abrasive grains is greater than 20 nm.
- the resin can be removed at a good polishing rate.
- the water-soluble polymer preferably contains a polyether, and more preferably contains a polysaccharide. In this case, the resin can be removed at a better polishing rate.
- the abrasive grains preferably contain colloidal silica.
- polishing scratches referring to scratches appearing on the polished surface after polishing; the same applies hereinafter
- the pH of the abrasive according to the present invention is preferably 1.0 to 8.0.
- the polishing rate of the resin can be further improved, and dissolution of the abrasive grains can be suppressed.
- the abrasive according to the present invention may further contain an acid component.
- the liquid stability of the abrasive can be increased and the surface to be polished can be satisfactorily flattened.
- the acid component promotes the dissolution of the wiring metal or the barrier metal, and can improve the polishing rate of the wiring metal or the barrier metal.
- the pH can be adjusted by using an acid component.
- the abrasive according to the present invention may further contain an insulating material polishing inhibitor.
- the resin can be selectively removed with respect to the insulating material (excluding the resin).
- the abrasive according to the present invention may further contain an anticorrosive.
- the anticorrosive agent forms a protective film for the wiring metal such as a copper-based metal and a cobalt-based metal, thereby suppressing the etching of the wiring metal and easily reducing the roughness of the surface to be polished.
- the abrasive according to the present invention may further contain an oxidizing agent. In this case, the polishing rate of the metal material can be improved.
- the abrasive according to the present invention may further contain a pH adjuster.
- the abrasive according to the present invention may further contain a surfactant.
- the polishing rate of the material to be polished can be easily adjusted. Further, polishing flaws can be reduced and corrosion of the wiring metal and the barrier metal can be suppressed.
- the abrasive according to the present invention may be stored as a multi-liquid abrasive having a first liquid containing abrasive grains and water and a second liquid containing the water-soluble polymer, organic solvent and water. Good. In this case, liquid stability can be improved.
- the abrasive storage liquid according to the present invention is an abrasive storage liquid for obtaining the abrasive, and the abrasive can be obtained by diluting with water. In this case, the cost, space, etc. required for transportation and storage of the abrasive can be reduced.
- polishing method which concerns on this invention comprises the process of preparing the base
- a second embodiment of the polishing method according to the present invention includes a step of preparing a substrate having a resin, a step of obtaining the abrasive by diluting the stock solution for abrasive with water, and a substrate using the abrasive And chemical mechanical polishing to remove at least a part of the resin. According to these polishing methods, the resin can be removed at a good polishing rate.
- the resin can be removed at a good polishing rate.
- an abrasive or a storage solution for an abrasive for polishing to remove at least a part of the resin by subjecting a substrate having a resin to chemical mechanical polishing.
- polishing agent storage liquid which concern on this invention can be used also for grinding
- process includes not only an independent process but also a process in which an intended action of the process is achieved although it cannot be clearly distinguished from other processes.
- a numerical range indicated using “to” indicates a range including the numerical values described before and after “to” as the minimum value and the maximum value, respectively.
- the upper limit value or the lower limit value of a numerical range in a certain step may be replaced with the upper limit value or the lower limit value of a numerical range in another step.
- the upper limit value or the lower limit value of the numerical range may be replaced with the values shown in the examples.
- each component in the composition is the total amount of the plurality of substances present in the composition unless there is a specific notice when there are a plurality of substances corresponding to each component in the composition. means.
- removal rate means a rate at which a material to be polished is removed per unit time.
- “diluting the abrasive stock solution X times” means that when the abrasive is obtained by adding water or the like to the abrasive stock solution, the mass of the abrasive is the amount of the abrasive stock solution. By dilution is meant X times the mass. For example, to obtain an abrasive by adding the same amount of water to the mass of the abrasive stock solution is defined as diluting the abrasive stock solution twice.
- polishing slurry for resin according to the present embodiment is a composition that touches the surface to be polished during polishing, and is, for example, a polishing slurry for CMP.
- the abrasive according to the present embodiment is an abrasive for removing at least a part of the resin by CMP of the substrate having the resin.
- the abrasive according to this embodiment contains abrasive grains, a water-soluble polymer having an ether bond, an organic solvent, and water.
- polishing agent which concerns on this embodiment may be used in order to grind
- the abrasive according to the present embodiment may be used for selectively polishing a resin with respect to an insulating material (excluding the resin; the same applies hereinafter) (for example, an insulating material such as silicon oxide).
- resins to be polished examples include phenolic resins, epoxy resins, acrylic resins, methacrylic resins, novolac resins, polyester resins (such as unsaturated polyester resins), polyimide resins, polyamideimide resins, polybenzoxazole (PBO), and polyallyl ethers.
- resin materials such as resins and heterocycle-containing resins (excluding those exemplified above).
- heterocycle-containing resin examples include a pyrrole ring-containing resin, a pyridine ring-containing resin, and an imidazole ring-containing resin.
- the method for forming the resin is not particularly limited, and examples thereof include a vapor deposition method and a spine coating method.
- the shape of the resin is not particularly limited, but is, for example, a film shape (resin film).
- polishing agent which concerns on this embodiment can be used also for grinding
- polishing agent which concerns on this embodiment contains an abrasive grain.
- the abrasive has a positive charge in the abrasive.
- the average particle diameter of an abrasive grain is larger than 20 nm.
- the polishing rate of the resin is likely to be increased by using abrasive grains having a positive charge in the abrasive.
- the resin cannot be removed at a good polishing rate only with abrasive grains having a positive charge.
- a good polishing rate of the resin can be obtained by using a water-soluble polymer having an ether bond and an organic solvent.
- Whether or not the abrasive has a positive charge in the abrasive can be determined by measuring the zeta potential of the abrasive in the abrasive. When the zeta potential of the abrasive grains in the abrasive is measured and the numerical value exceeds 0 mV, it can be determined that the abrasive grains have a positive charge.
- the zeta potential can be measured by, for example, trade name: DELSA NANO C manufactured by Beckman Coulter.
- the zeta potential ( ⁇ [mV]) can be measured by the following procedure. First, in the zeta potential measurement device, the scattering intensity of the measurement sample is 1.0 ⁇ 10 4 to 5.0 ⁇ 10 4 cps (where “cps” means counts per second, that is, counts per second, A sample is obtained by diluting the polishing agent with pure water so that it is a unit of counting. Then, the sample is put into a zeta potential measurement cell and the zeta potential is measured. In order to adjust the scattering intensity to the above range, for example, the abrasive can be diluted so that the abrasive grains become 1.7 to 1.8% by mass.
- Examples of the method for adjusting the abrasive grains so as to have a positive charge in the polishing agent include a method for controlling the manufacturing method of the abrasive grains, a method for adjusting the pH of the polishing agent, and a method for performing surface treatment on the abrasive grains. It is done.
- a case where silica is used as the abrasive will be described as an example.
- General silica has a negative charge in the liquid, but tends to have a positive charge by lowering the pH of the abrasive.
- the silica which has a positive charge can also be obtained by surface-treating a silica using the coupling agent which has a cationic group.
- the zeta potential is preferably 5 mV or more, more preferably 10 mV or more, and further preferably 14 mV or more from the viewpoint of obtaining a better polishing rate for the resin and good storage stability.
- the upper limit of the zeta potential is not particularly limited, but may be, for example, 100 mV or less, 50 mV or less, or 20 mV or less.
- the average particle size of the abrasive grains is larger than 20 nm from the viewpoint of obtaining sufficient mechanical polishing power and increasing the polishing rate of the resin.
- the average particle diameter of the abrasive grains is preferably 25 nm or more, more preferably 30 nm or more, still more preferably 50 nm or more, and more preferably 70 nm or more from the viewpoint that sufficient mechanical polishing power is easily obtained and the resin polishing rate is further increased. Particularly preferred.
- the average particle size of the abrasive grains is preferably 200 nm or less, more preferably 120 nm or less, and more preferably 100 nm from the viewpoint of obtaining good dispersion stability in the abrasive and reducing the number of polishing scratches generated by CMP. The following is more preferable, and 80 nm or less is particularly preferable.
- the “average particle diameter” of the abrasive grains means the average secondary particle diameter of the abrasive grains.
- the average particle diameter is a value of D50 (median diameter of volume distribution, cumulative median value) obtained by measuring the abrasive with a dynamic light scattering particle size distribution meter (for example, COULTER Electronics, trade name: COULTER N4 SD). Say.
- the average particle diameter can be measured by the following procedure. First, 100 ⁇ L of abrasive (L represents liter; the same applies hereinafter) is weighed, and the content of abrasive grains is around 0.05% by mass (the transmittance (H) during measurement is 60 to 70%). ) To obtain a diluted solution. And an average particle diameter can be measured by throwing a dilution liquid into the sample tank of a dynamic light scattering type particle size distribution analyzer, and reading the value displayed as D50.
- L represents liter; the same applies hereinafter
- the abrasive grains are preferably particles in which primary particles are aggregated less than an average of less than 2 particles, and particles in which primary particles are aggregated less than an average of less than 1.2 particles. Is more preferable.
- the upper limit of the degree of association of the abrasive grains varies depending on the primary particle diameter of the abrasive grains used, and it is considered that the secondary particle diameter only needs to be within the range described above.
- said degree of association can obtain
- the primary particle size can be measured by a known transmission electron microscope (for example, H-7100FA manufactured by Hitachi, Ltd.). For example, an image of particles is taken using the electron microscope, a biaxial average primary particle size is calculated for a predetermined number of arbitrary particles, and an average value thereof is obtained. When the particle size distribution is wide, the predetermined number should be a quantity whose average value is stable. When colloidal silica or colloidal alumina is used as the abrasive grains, since the particle diameter is generally uniform, the number of particles to be measured may be about 20 particles, for example.
- a rectangle that circumscribes the selected particle and is arranged so that the longest diameter is longest is introduced. And based on the major axis L and minor axis B of the circumscribed rectangle, the biaxial average primary particle size of one particle is calculated as (L + B) / 2. This operation is performed on 20 arbitrary particles, and the average value of the obtained values is referred to as a biaxial average primary particle size in this embodiment. This operation can also be automated by a computer program.
- the standard deviation of the average particle size distribution in the abrasive grains is preferably 10 nm or less, and more preferably 5 nm or less.
- the abrasive grains in the polishing agent can be put into COULTER N4SD manufactured by COULTER Electronics, and the standard deviation value can be obtained from the particle size distribution chart.
- abrasive grains include at least one selected from the group consisting of silica, alumina, zirconia, ceria, titania, germania, cerium hydroxide, resin, diamond, silicon carbide, cubic boron nitride, and modified products thereof.
- silica examples include colloidal silica and fumed silica. Among them, colloidal silica is preferable from the viewpoint of reducing polishing scratches while maintaining a high polishing rate for the resin.
- Colloidal alumina can also be used as the alumina.
- modified products include silica, alumina, zirconia, ceria, titania, germania, cerium hydroxide and other abrasive grains modified with an alkyl group, and other abrasive grains adhered to the abrasive grains.
- examples include composite abrasive grains.
- the method for modifying the surface of the abrasive grain with an alkyl group is not particularly limited, and examples thereof include a method of reacting a hydroxyl group (hydroxyl group) present on the surface of the abrasive grain with an alkoxysilane having an alkyl group. .
- the alkoxysilane having an alkyl group is not particularly limited, but monomethyltrimethoxysilane, dimethyldimethoxysilane, trimethylmonomethoxysilane, monoethyltrimethoxysilane, diethyldimethoxysilane, triethylmonomethoxysilane, monomethyltriethoxysilane, dimethyl Examples include diethoxysilane and trimethylmonoethoxysilane.
- limiting in particular as a reaction method For example, the method of making the abrasive
- a modified product obtained by modifying the surface of the abrasive grains with an alkyl group has good compatibility with the resin, and the polishing rate of the resin is easily increased.
- the content of the abrasive is preferably 0.01% by mass or more, preferably 0.1% by mass based on the total mass of the abrasive, from the viewpoint that sufficient mechanical polishing power can be easily obtained and the polishing rate of the resin is further increased.
- % Or more is more preferable, 0.5% by weight or more is further preferable, 1.0% by weight or more is particularly preferable, 2.0% by weight or more is extremely preferable, and 3.0% by weight or more is very preferable.
- the content of the abrasive grains is determined from the viewpoint of easily avoiding an increase in the viscosity of the abrasive, from the viewpoint of easily avoiding the aggregation of abrasive grains, from the viewpoint of easily reducing polishing scratches, and from the viewpoint of easy handling of the abrasive.
- On a mass basis it is preferably 20% by mass or less, more preferably 15% by mass or less, still more preferably 10% by mass or less, and particularly preferably 5.0% by mass or less.
- polishing agent which concerns on this embodiment contains the water-soluble polymer which has an ether bond.
- the abrasive contains a water-soluble polymer having an ether bond, a good polishing rate for the resin can be obtained.
- the water-soluble polymer having an ether bond takes away the hydrated water of the abrasive grains, thereby reducing the hydrophilicity of the abrasive grains and increasing the affinity between the hydrophobic resin and the abrasive grains. As a result, it is considered that the polishing rate of the resin by the abrasive grains is improved.
- the water-soluble polymer having an ether bond is not particularly limited as long as the polymer has an ether bond and is soluble or miscible in water, and examples thereof include polyethers and monoether compounds.
- the water-soluble polymer having an ether bond is preferably a polyether from the viewpoint of easily improving the polishing rate of the resin.
- the polyether is a polysaccharide, polyalkylene glycol, polyglycerin, polyoxypropylene polyglyceryl ether, polyoxyethylene polyglyceryl ether, glycerin aliphatic ester, diglycerin aliphatic ester, aromatic glycol ether, aliphatic glycol ether, ester series Glycol ether, propylene oxide adduct, gallic acid glycoside, phenol glycoside, polyphenol glycoside, sugar ester compound, polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl triisostearate, 1, 4-di (2-hydroxyethoxy) benzene, 2,2-bis (4-polyoxyethylene-oxyphenyl) propane, 2,2-bis (4-polyoxypropyleneoxyphenyl) propa , Ethylene glycol monophenyl ether, diethylene glycol monophenyl ether, polyoxyalkylene monophenyl ether, propylene glycol monophenyl ether,
- the water-soluble polymer having an ether bond is preferably a polysaccharide and more preferably an ⁇ -glucose polymer from the viewpoint of suppressing aggregation of abrasive grains (colloidal silica or the like) in the abrasive.
- polysaccharide is defined as a substance polymerized with a glycosidic bond at a polymerization degree of 2 or more unless otherwise specified.
- Polysaccharides include sucrose, lactulose, lactose, trehalose, maltose, cellobiose, cordobiose, nigerose, isomaltose, isotrehalose, neotrehalose, sophorose, laminaribiose, gentibiose, tulanose, maltulose, palatinose, gentiobiose, mannobiose , Melibiose, melibiurose, neolactose, galactosucrose, silabiose, rutinose, rutinose, vicyanose, xylobiose, primeverose, trehalosamine, maltitol, cellobionic acid, lactosamine, lactosediamine, lactobionic acid, lactitol, hyalobiuronic acid, sucralose, nigerotriose Maltotriose, melezitose, maltotriu
- Examples of the ⁇ -glucose polymer include amylose, dextran, dextrin, maltodextrin, cluster dextrin, ⁇ -cyclodextrin, ⁇ -cyclodextrin, ⁇ -cyclodextrin, maltose, isomaltose, maltotriose, stachyose and the like.
- dextrin having an aldehyde group at the end of the decomposition product obtained by decomposition of starch referred to as “general dextrin” for distinction from other dextrins
- general dextrin for distinction from other dextrins
- difficult to be partially decomposed in the process of starch decomposition Examples include indigestible dextrin separated by purifying the product; reduced dextrin in which the aldehyde end is reduced by hydrogenation and changed to a hydroxyl group. Any of these compounds can be used as the dextrin.
- the ⁇ -glucose polymer is derived from the structural unit represented by the following formula (IA) and the structural unit represented by the following formula (IB). Preferably, at least one selected from the group consisting of dextrin and maltose is more preferable.
- the ⁇ -glucose polymer contains both the structural unit represented by the formula (IA) and the structural unit represented by the formula (IB), the arrangement thereof is not limited, and regular or random But you can.
- the ⁇ -glucose polymer is preferably at least one selected from the group consisting of dextrin and maltose from the viewpoint of excellent versatility.
- the ⁇ -glucose polymer may have at least one structural unit represented by the following formulas (II-A) to (II-F).
- the degree of polymerization of ⁇ -glucose is 2 or more, preferably 3 or more, more preferably 5 or more from the viewpoint of polishing the resin at a better polishing rate.
- the “degree of polymerization of ⁇ -glucose” is defined as the number of structural units derived from ⁇ -glucose in one molecule.
- the formula (IA) and the formula (I— B) is the total number of structural units represented by the formulas (II-A) to (II-F) in one molecule.
- polyalkylene glycol examples include polyethylene glycol and polypropylene glycol.
- glyceryl aliphatic esters include glyceryl stearate, glyceryl hydroxystearate, polyglyceryl distearate, polyglyceryl diisostearate, diglyceryl triisostearate, polyglyceryl monoisostearate, diglyceryl tetraisostearate, polyglyceryl oleate, polyglyceryl dioleate, palm Oil fatty acid polyglyceryl, dicoconut oil fatty acid polyglyceryl, tricoconut oil fatty acid polyglyceryl, polyglyceryl sesquistearate, polyglyceryl sesquicaprylate, glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / capric acid), polyglyceryl laurate, polyglyceryl isononanoate, etc.
- Examples of the aromatic glycol ether include polyethylene glycol monobenzyl ether.
- Examples of the aliphatic glycol ether include N-polyoxypropylene ethylenediamine.
- Examples of the ester glycol ether include polyethylene glycol methacrylate, polyethylene glycol methacrylate, polyethylene glycol monomethyl ether methacrylate, and the like.
- Examples of the propylene oxide adduct include trimethylolpropane tripolyoxyethylene ether, trimethylolpropane tripolyoxypropylene ether, and trimethylolpropane.
- Examples of the gallic acid glycoside include gallic acid-3-glucoside, gallic acid-3,5-diglucoside, and the like.
- glycosides of phenols include salicylic acid glucoside and hydroxybenzoic acid glucoside.
- glycosides of polyphenols include tannic acid glucoside, proanthocyanidin glucoside, catechin glucoside, rutinic acid glucoside, cacao mass glucoside, and isoflavone glucoside.
- sugar ester compounds include polyoxyethylene sorbit fatty acid esters, polyoxyethylene pentaerythritol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and the like.
- the water-soluble polymer having an ether bond is preferably at least one selected from the group consisting of polyoxypropylene polyglyceryl ether, polyoxyethylene polyglyceryl ether, polyglycerin and dextrin from the viewpoint of removing the resin at a better polishing rate. .
- the water-soluble polymer having an ether bond can be used singly or in combination of two or more.
- the weight average molecular weight (Mw) of the water-soluble polymer having an ether bond is preferably 200 or more, more preferably 1000 or more, and still more preferably 4000 or more, from the viewpoint of easily improving the polishing rate of the resin. From the viewpoint of obtaining good storage stability, the weight average molecular weight of the water-soluble polymer having an ether bond is preferably 1000000 or less, more preferably 800000 or less, and further preferably 500000 or less.
- the weight average molecular weight (Mw) of the water-soluble polymer having an ether bond can be measured under the following conditions using, for example, gel permeation chromatography (GPC).
- GPC gel permeation chromatography
- the content of the water-soluble polymer having an ether bond is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, based on the total mass of the abrasive, from the viewpoint that the polishing rate of the resin is easily improved. 0.01% by mass or more is more preferable, 0.1% by mass or more is particularly preferable, 0.2% by mass or more is extremely preferable, and 0.3% by mass or more is very preferable.
- the content of the water-soluble polymer having an ether bond is preferably 5.00% by mass or less, more preferably 2.00% by mass or less, based on the total mass of the abrasive, from the viewpoint of easily obtaining good storage stability. Preferably, 1.00 mass% or less is further more preferable, and 0.5 mass% or less is particularly preferable.
- the abrasive according to this embodiment contains an organic solvent.
- the abrasive contains an organic solvent, the polishing rate of the resin and the wettability of the abrasive can be improved.
- a liquid solvent is preferable at 20 degreeC.
- the solubility of the organic solvent in 100 g of water (20 ° C.) is preferably 30 g or more, more preferably 50 g or more, and even more preferably 100 g or more.
- An organic solvent can be used individually by 1 type or in combination of 2 or more types.
- Examples of the organic solvent include carbonate esters, lactones, glycols, and derivatives of glycols.
- the carbonic acid esters include ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, and methyl ethyl carbonate.
- lactones include butyrolactone and propiolactone.
- glycols include ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, triethylene glycol, and tripropylene glycol.
- Examples of the derivatives of glycols include glycol monoethers and glycol diethers.
- glycol monoethers ethylene glycol monomethyl ether, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, dipropylene glycol monomethyl ether, triethylene glycol monomethyl ether, tripropylene glycol monomethyl ether, ethylene glycol monoethyl ether , Propylene glycol monoethyl ether, diethylene glycol monoethyl ether, dipropylene glycol monoethyl ether, triethylene glycol monoethyl ether, tripropylene glycol monoethyl ether, ethylene glycol monopropyl ether, propylene glycol monopropyl ether, polyethylene Glycol monopropyl ether, dipropylene glycol monopropyl ether, triethylene glycol monopropyl ether, tripropylene glycol monopropyl ether, ethylene glycol monobutyl ether, propylene glycol monobutyl ether, diethylene glycol
- glycol diethers ethylene glycol dimethyl ether, propylene glycol dimethyl ether, diethylene glycol dimethyl ether, dipropylene glycol dimethyl ether, triethylene glycol dimethyl ether, tripropylene glycol dimethyl ether, ethylene glycol diethyl ether, propylene glycol diethyl ether, diethylene glycol diethyl ether, dipropylene glycol Diethyl ether, triethylene glycol diethyl ether, tripropylene glycol diethyl ether, ethylene glycol dipropyl ether, propylene glycol dipropyl ether, diethylene glycol dipropyl ether, dipropylene glycol dipropyl ether, trie Glycol dipropyl ether, tripropylene glycol dipropyl ether, ethylene glycol dibutyl ether, propylene glycol dibutyl ether, diethylene glycol dibutyl ether, dipropylene glycol dibutyl ether,
- the content of the organic solvent is preferably 0.500% by mass or more, more preferably 1.000% by mass or more, based on the total mass of the abrasive, from the viewpoint of suppressing the wettability of the abrasive to the resin. 2.000% by mass or more is more preferable, 3.000% by mass or more is particularly preferable, and 5.000% by mass or more is very preferable. From the viewpoint of excellent dispersion stability, the content of the organic solvent is preferably 20.000% by mass or less, more preferably 15.000% by mass or less, and further preferably 10.000% by mass or less, based on the total mass of the abrasive. preferable.
- polishing agent which concerns on this embodiment contains water.
- Water is used as a dispersion medium or solvent for other components.
- the water in order to prevent inhibiting the effect
- the water is preferably at least one selected from the group consisting of pure water, ultrapure water, and distilled water from which foreign ions are removed through a filter after removing impurity ions with an ion exchange resin.
- the additive according to the present embodiment is highly water-soluble with abrasive grains and ether bonds for the purpose of improving the dispersibility of abrasive grains in the abrasive, improving the chemical stability of the abrasive, and improving the polishing rate.
- the content of the additive in the abrasive can be arbitrarily determined as long as the characteristics of the abrasive are not impaired.
- the abrasive according to this embodiment may contain an acid component.
- the abrasive according to the present embodiment contains an acid component, the liquid stability of the abrasive can be enhanced and the surface to be polished can be satisfactorily flattened.
- the acid component promotes the dissolution of the wiring metal or the barrier metal, and can improve the polishing rate of the wiring metal or the barrier metal.
- the pH can be adjusted by using an acid component.
- the pH By adjusting the pH to positively adjust the charge of the abrasive grains, it is possible to easily obtain a good polishing rate for the resin.
- the acid component is at least selected from the group consisting of an organic acid component and an inorganic acid component, from the viewpoint of further improving the dispersibility and stability of the aqueous dispersion and the polishing rate of the resin, wiring metal, and barrier metal.
- One type is preferred.
- organic acid component examples include organic acids (excluding amino acids), organic acid esters, organic acid salts, amino acids, and the like.
- organic acids include formic acid, acetic acid, propionic acid, butyric acid, valeric acid, 2-methylbutyric acid, n-hexanoic acid, 3,3-dimethylbutyric acid, 2-ethylbutyric acid, 4-methylpentanoic acid, n-heptanoic acid, 2-methylhexanoic acid, n-octanoic acid, 2-ethylhexanoic acid, benzoic acid, glycolic acid, salicylic acid, glyceric acid, oxalic acid, malonic acid, succinic acid, 3-methylphthalic acid, 4-methylphthalic acid, 3-aminophthalic acid Acid, 4-aminophthalic acid, 3-nitrophthalic acid, 4-nitrophthalic acid, glutaric acid, adipic acid, pimelic acid, maleic acid, phthalic acid, isophthal
- organic acid ester examples include esters of the above organic acids.
- organic acid salt examples include ammonium salts, alkali metal salts, alkaline earth metal salts and halides of the above organic acids.
- amino acids include alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine and the like.
- Examples of the inorganic acid component include inorganic acids, ammonium salts of the inorganic acids, ammonium persulfate, ammonium nitrate, ammonium chloride, chromic acid, and the like.
- Examples of the inorganic acid include hydrochloric acid, sulfuric acid, nitric acid and the like.
- the substrate to be polished is a silicon substrate including an integrated circuit element
- contamination with alkali metal, alkaline earth metal, halide, etc. is not desirable, and as the salt of the acid component, alkali metal salt, alkaline earth Salts other than metal salts and halides are preferred.
- the acid component includes malonic acid, malic acid, tartaric acid, citric acid, salicylic acid, adipic acid, phthalic acid, glycolic acid and succinic acid from the viewpoint of effectively suppressing the etching rate while maintaining a practical polishing rate.
- At least one selected from the group consisting of An acid component can be used individually by 1 type or in combination of 2 or more types.
- the content of the acid component is preferably 0.001% by mass or more and 0.002% by mass or more based on the total mass of the abrasive from the viewpoint of obtaining a good polishing rate of the resin, the wiring metal and the barrier metal. Is more preferable, and 0.005 mass% or more is still more preferable.
- the content of the acid component is preferably 20% by mass or less, more preferably 10% by mass or less, and more preferably 5% by mass based on the total mass of the abrasive from the viewpoint of suppressing etching and reducing roughness of the polished surface. The following is more preferable.
- the abrasive according to this embodiment may contain an insulating material polishing inhibitor (insulating material polishing inhibitor component, for example, an inorganic insulating film polishing inhibitor) as a component that suppresses polishing of the insulating material.
- an insulating material polishing inhibitor insulating material polishing inhibitor component, for example, an inorganic insulating film polishing inhibitor
- the polishing rate of the insulating material can be suppressed, and the resin can be selectively removed with respect to the insulating material.
- the insulating material polishing inhibitor examples include allylamine polymers.
- the “allylamine polymer” is defined as a polymer having a structural unit obtained by polymerizing a monomer containing an allylamine compound.
- an “allylamine compound” is defined as a compound having an allyl group and an amino group.
- the allylamine polymer may have a structural unit obtained by polymerizing only an allylamine compound, and has a structural unit obtained by copolymerizing an allylamine compound and a compound other than the allylamine compound. It may be.
- the insulating material polishing inhibitor can be used alone or in combination of two or more.
- the allylamine polymer is a structural unit represented by the following general formula (III) in the polymer molecule, and the following general formula (IV): From the group consisting of the structural unit represented, the structural unit represented by the following general formula (V), the structural unit represented by the following general formula (VI), and the structural unit represented by the following general formula (VII) It is preferable to have at least one selected.
- R 11 , R 12 , R 2 and R 3 each independently represent a hydrogen atom, an alkyl group or an aralkyl group, and the alkyl group and aralkyl group may have a hydroxyl group, And the nitrogen-containing ring may each independently form an acid addition salt, and R 11 and R 12 may be the same as or different from each other.
- R 41 and R 42 each independently represent an alkyl group or an aralkyl group, the alkyl group and the aralkyl group may have a hydroxyl group, and R 51 and R 52 each independently represent an alkyl group.
- R 41 and R 42 may be the same as or different from each other.
- R 51 and R 52 may be the same as or different from each other.
- the structural units represented by the general formulas (III) to (VII) may be one kind or two or more kinds.
- the total number of the structural units represented by the general formulas (III) to (VII) in the molecule is preferably 5 or more, more preferably 7 or more, and still more preferably 10 or more, from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the total number of the structural units represented by the general formulas (III) to (VII) in the molecule is an average value of the allylamine polymer contained in the abrasive.
- the alkyl groups of R 11 , R 12 , R 2 and R 3 in the general formulas (III), (IV) and (V) may be linear, branched or cyclic.
- the number of carbon atoms of the alkyl group is preferably 1 or more from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the number of carbon atoms in the alkyl group is preferably 10 or less, more preferably 7 or less, still more preferably 5 or less, and particularly preferably 4 or less from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the alkyl groups of R 11 , R 12 , R 2 and R 3 may have a hydroxyl group.
- Examples of the alkyl group of R 11 , R 12 , R 2 and R 3 include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, iso-butyl group, tert-butyl group, cyclohexyl group, and the like. Hydroxyl group adduct (3-hydroxypropyl group etc.) and the like.
- Alkyl group refers to a group in which one of the hydrogen atoms of an alkyl group is substituted with an aryl group.
- the alkyl group constituting the aralkyl group of R 11 , R 12 , R 2 and R 3 is any of linear, branched and cyclic There may be.
- the number of carbon atoms of the aralkyl group is preferably 7 to 10 from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the aralkyl groups of R 11 , R 12 , R 2 and R 3 may have a hydroxyl group.
- Examples of the aralkyl group include benzyl group, phenethyl group, phenylpropyl group, phenylbutyl group, phenylhexyl group, and hydroxyl group adducts thereof.
- the amino group in the general formula (III) and the nitrogen-containing ring in the general formulas (IV) and (V) may form an acid addition salt.
- the acid addition salt include hydrochloride, hydrobromide, acetate, sulfate, nitrate, sulfite, phosphate, amidosulfate, methanesulfonate, and the like.
- at least one selected from the group consisting of hydrochloride, acetate and amide sulfate is preferable from the viewpoint of obtaining a higher polishing rate ratio of the resin to the insulating material.
- R 11 , R 12 , R 2 and R 3 are selected from the group consisting of a hydrogen atom, a methyl group and an ethyl group from the viewpoint of good wettability with an insulating material (for example, silicon oxide). At least one is preferred.
- allylamine polymers and diallylamine polymers are used from the viewpoint of obtaining a higher polishing selectivity of the resin to the insulating material. At least one selected from the group consisting of coalescence is preferred. From the same viewpoint, the structural unit containing an acid addition salt is preferably at least one selected from the group consisting of diallylamine hydrochloride, methyldiallylamine hydrochloride, ethyldiallylamine hydrochloride, methyldiallylamine acetate and methyldiallylamine amide sulfate. .
- the alkyl groups of R 41 , R 42 , R 51 and R 52 in the general formulas (VI) and (VII) may be linear, branched or cyclic.
- the number of carbon atoms of the alkyl group of R 41 and R 42 is preferably 1 or more from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the number of carbon atoms of the alkyl group of R 41 and R 42 is preferably 10 or less, more preferably 7 or less, and still more preferably 4 or less, from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the number of carbon atoms of the alkyl group of R 51 and R 52 is preferably 1 or more from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the number of carbon atoms of the alkyl group of R 51 and R 52 is preferably 10 or less, more preferably 7 or less, and even more preferably 4 or less from the viewpoint of easily suppressing the polishing rate of the insul
- the alkyl group of R 41 and R 42 may have a hydroxyl group.
- Examples of the alkyl group for R 41 and R 42 include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an iso-butyl group, a tert-butyl group, a cyclohexyl group, and a hydroxyl group adduct (3 -Hydroxypropyl group, etc.).
- Examples of the alkyl group for R 51 and R 52 include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an iso-butyl group, a tert-butyl group, and a cyclohexyl group.
- the alkyl group constituting the aralkyl group of R 41 , R 42 , R 51 and R 52 in the general formulas (VI) and (VII) may be linear, branched or cyclic.
- the number of carbon atoms of the aralkyl group is preferably 7 to 10 from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the aralkyl group of R 41 and R 42 may have a hydroxyl group.
- examples of the aralkyl group include benzyl group, phenethyl group, phenylpropyl group, phenylbutyl group, and hydroxyl group adducts thereof.
- Examples of the aralkyl group for R 51 and R 52 include a benzyl group, a phenethyl group, a phenylpropyl group, and a phenylbutyl group.
- R 41 , R 42 , R 51, and R 52 are selected from the group consisting of a methyl group, a benzyl group, and a phenethyl group from the viewpoint of good wettability with an insulating material (for example, silicon oxide) among the above. At least one functional group is preferred.
- Examples of D ⁇ in the general formulas (VI) and (VII) include halogen ions such as Cl ⁇ , Br ⁇ and I ⁇ ; alkyl sulfate ions such as methyl sulfate ion, ethyl sulfate ion and dimethyl sulfate ion.
- the partial structure represented by the following general formula (VIa) and the partial structure represented by the following general formula (VIIa) in the general formula (VII) include N, N-dialkylammonium salts, And N-alkyl-N-benzylammonium salts.
- Examples of the N, N-dialkylammonium salt include N, N-dialkylammonium halide and N, N-dialkylammonium alkyl sulfate.
- N, N-dialkylammonium halide examples include N, N-dimethylammonium halide, N, N-diethylammonium halide, N, N-dipropylammonium halide, N, N-dibutylammonium halide and the like.
- N, N-dialkylammonium alkyl sulfate examples include N, N-dimethylammonium methyl sulfate, N, N-methylethylammonium ethyl sulfate, and the like.
- N-alkyl-N-benzylammonium salt examples include N-alkyl-N-benzylammonium halides such as N-methyl-N-benzylammonium halide and N-ethyl-N-benzylammonium halide.
- the partial structure halide examples include chloride, bromide, and iodide.
- the resin is selected from the group consisting of N, N-dimethylammonium chloride and N, N-methylethylammonium ethyl sulfate from the viewpoint of obtaining a higher polishing rate ratio of the resin to the insulating material. At least one of these is preferred.
- the allylamine polymer may have a structure obtained by copolymerizing an allylamine compound and a compound other than the allylamine compound.
- the allylamine polymer is, for example, selected from the group consisting of a structural unit represented by the general formula (III), a structural unit represented by the general formula (IV), and a structural unit represented by the general formula (V) It may have a structure obtained by copolymerizing a monomer that gives at least one structural unit and a monomer other than an allylamine compound.
- the allylamine polymer includes a structural unit represented by the following general formula (VIII), a structural unit represented by the following formula (IX), a structural unit represented by the following general formula (X), and the following general formula ( It may have at least one selected from the group consisting of structural units represented by XI).
- the allylamine polymer is a structural unit represented by the general formula (III), a structural unit represented by the general formula (IV), a structural unit represented by the general formula (V), or a general formula (VI).
- At least one structural unit selected from the group consisting of the structural unit represented by the general formula (VII), the structural unit represented by the general formula (VIII), and the formula (IX) A structural unit represented by formula (X), and at least one structural unit selected from the group consisting of structural units represented by formula (XI). Good.
- Q represents an alkylene group
- R 6 represents a hydrogen atom or an alkyl group
- n represents an average addition mole number of 0 to 30.
- R 7 represents a hydrogen atom or an alkyl group
- Y + represents a cation.
- R 8 represents a hydrogen atom or an alkyl group.
- examples of the monomer that gives the structural unit represented by formula (VIII) include allyl alcohol.
- examples of the monomer that gives the structural unit represented by the general formula (VIII) when n is 1 to 30 include (poly) oxyalkylene monoallyl ether, (poly) oxyalkylene monoallyl monomethyl ether, and the like.
- the alkylene group represented by Q is preferably a linear or branched alkylene group having 2 to 3 carbon atoms from the viewpoint of easily suppressing the polishing rate of the insulating material, and includes an ethylene group, a trimethylene group, and a propylene group.
- R 6 is preferably at least one selected from the group consisting of a hydrogen atom and a methyl group from the viewpoint of easily suppressing the polishing rate of the insulating material.
- allylamine polymer having the structural unit represented by the general formula (VIII) a diallylmethylamine hydrochloride allyl alcohol copolymer is preferable from the viewpoint of further increasing the polishing rate ratio of the resin to the insulating material.
- Examples of the monomer that gives the structural unit represented by the formula (IX) include sulfur dioxide.
- a diallylamine hydrochloride sulfur dioxide copolymer is preferable from the viewpoint of obtaining a higher polishing rate ratio of the resin to the insulating material.
- R 7 in the general formula (X) is preferably at least one selected from the group consisting of a hydrogen atom and a methyl group, and more preferably a hydrogen atom, from the viewpoint of easily suppressing the polishing rate of the insulating material.
- Y + include alkali metal ions such as sodium ions and potassium ions; hydrogen ions; ammonium ions.
- Examples of the monomer that gives the structural unit represented by the general formula (X) include maleic acid, fumaric acid, citraconic acid, itaconic acid, mesaconic acid, 2-allylmalonic acid, and the like.
- Maleic acid is preferable from the viewpoint of easily reducing the amount of water and dispersibility of the allylamine polymer in the abrasive.
- diallylamine hydrochloride maleic acid copolymer and diallylamine amide sulfuric acid are used from the viewpoint of obtaining a higher polishing rate ratio of the resin to the insulating material. At least one selected from the group consisting of a salt maleic acid copolymer is preferred.
- R 8 in the general formula (XI) is preferably at least one selected from the group consisting of a hydrogen atom and a methyl group, and more preferably a hydrogen atom, from the viewpoint of easily suppressing the polishing rate of the insulating material.
- Examples of the monomer that gives the structural unit represented by the general formula (XI) include acrylamide.
- diallylmethylammonium chloride acrylamide copolymer and diallyldimethylammonium copolymer are used from the viewpoint of obtaining a higher polishing rate ratio of the resin to the insulating material. At least one selected from the group consisting of chloride acrylamide copolymers is preferred.
- allylamine polymer methyldiallylamineamide sulfate polymer, allylamine polymer, diallyldimethylammonium chloride acrylamide copolymer, and diallylamine hydrochloride dioxide dioxide are used from the viewpoint of obtaining a higher polishing rate ratio of the resin to the insulating material. At least one selected from the group consisting of sulfur copolymers is preferred.
- the weight average molecular weight (Mw) of the insulating material polishing inhibitor is preferably 500 or more, more preferably 800 or more, and still more preferably 1000 or more, from the viewpoint of easily suppressing the polishing rate of the insulating material.
- the weight average molecular weight of the insulating material polishing inhibitor is preferably 300000 or less, more preferably 200000 or less, from the viewpoint of suppressing the viscosity from becoming excessively high and obtaining good storage stability. 150,000 or less is more preferable.
- the weight average molecular weight of the insulating material polishing inhibitor (such as an allylamine polymer) can be measured using GPC under the same conditions as the weight average molecular weight of the water-soluble polymer having an ether bond.
- the content of the insulating material polishing inhibitor is preferably 0.001% by mass or more, more preferably 0.003% by mass or more, based on the total mass of the abrasive, from the viewpoint of easily suppressing the polishing rate of the insulating material. 0.004 mass% or more is more preferable, and 0.005 mass% or more is particularly preferable.
- the content of the insulating material polishing inhibitor is 0.400 on the basis of the total mass of the polishing agent from the viewpoint of easily suppressing a decrease in the polishing rate of the resin and easily maintaining a high polishing rate ratio of the resin to the insulating material. % By mass or less is preferable, 0.300% by mass or less is more preferable, 0.200% by mass or less is further preferable, and 0.100% by mass or less is particularly preferable.
- the mass ratio of the insulating material polishing inhibitor content to the abrasive content is 0.002 or more from the viewpoint of easily removing the resin from the insulating material. Preferably, 0.003 or more is more preferable, and 0.005 or more is still more preferable.
- the mass ratio of the insulating material polishing inhibitor content to the abrasive content is preferably 0.400 or less, more preferably 0.300 or less, more preferably 0.200, from the viewpoint of easy removal of the resin at a good polishing rate. The following is more preferable.
- the abrasive according to this embodiment may contain an anticorrosive agent (anticorrosive component, metal anticorrosive agent).
- an anticorrosive agent Any conventionally well-known component can be used as a compound which has the anticorrosive action with respect to a metal material.
- the anticorrosive agent at least one selected from the group consisting of triazole compounds, pyridine compounds, pyrazole compounds, pyrimidine compounds, imidazole compounds, guanidine compounds, thiazole compounds, tetrazole compounds, triazine compounds and hexamethylenetetramine is used. be able to.
- compound is a general term for compounds having the skeleton, and for example, “triazole compound” means a compound having a triazole skeleton.
- a triazole compound having a triazole skeleton is preferable.
- An anticorrosive agent can be used individually by 1 type or in combination of 2 or more types.
- triazole compound examples include 1,2,3-triazole, 1,2,4-triazole, 3-amino-1H-1,2,4-triazole, benzotriazole, 1-hydroxybenzotriazole, and 1-dihydroxypropyl.
- pyridine compounds include 8-hydroxyquinoline, prothionamide, 2-nitropyridin-3-ol, pyridoxamine, nicotinamide, iproniazide, isonicotinic acid, benzo [f] quinoline, 2,5-pyridinedicarboxylic acid, 4-styrylpyridine.
- Anabasine 4-nitropyridine-1-oxide, pyridine-3-ethyl acetate, quinoline, 2-ethylpyridine, quinolinic acid, citrazic acid, pyridine-3-methanol, 2-methyl-5-ethylpyridine, 2-fluoro Examples include pyridine, pentafluoropyridine, 6-methylpyridin-3-ol, pyridine-2-ethyl acetate, and 3-hydroxypyridine.
- Examples of the pyrazole compound include pyrazole, 1-allyl-3,5-dimethylpyrazole, 3,5-di (2-pyridyl) pyrazole, 3,5-diisopropylpyrazole, 3,5-dimethyl-1-hydroxymethylpyrazole, 3 , 5-dimethyl-1-phenylpyrazole, 3,5-dimethylpyrazole, 3-amino-5-hydroxypyrazole, 4-methylpyrazole, N-methylpyrazole, 3-aminopyrazole, 3-aminopyrazole and the like.
- Pyrimidine compounds include pyrimidine, 1,3-diphenyl-pyrimidine-2,4,6-trione, 1,4,5,6-tetrahydropyrimidine, 2,4,5,6-tetraaminopyrimidine sulfate, 2, 4,5-trihydroxypyrimidine, 2,4,6-triaminopyrimidine, 2,4,6-trichloropyrimidine, 2,4,6-trimethoxypyrimidine, 2,4,6-triphenylpyrimidine, 2,4 -Diamino-6-hydroxylpyrimidine, 2,4-diaminopyrimidine, 2-acetamidopyrimidine, 2-aminopyrimidine, 4-aminopyrazolo [3,4-d] pyrimidine, 1,3,4,6,7,8-hexahydro -2H-pyrimido [1,2-a] pyrimidine and the like. Note that compounds having a pyrimidine skeleton and other skeletons (excluding the triazole skeleton) in one molecule are classified
- imidazole compounds include 1,1′-carbonylbis-1H-imidazole, 1,1′-oxalyldiimidazole, 1,2,4,5-tetramethylimidazole, 1,2-dimethyl-5-nitroimidazole, , 2-dimethylimidazole, 1- (3-aminopropyl) imidazole, 1-butylimidazole, 1-ethylimidazole, 1-methylimidazole, benzimidazole and the like.
- guanidine compound examples include 1,1,3,3-tetramethylguanidine, 1,2,3-triphenylguanidine, 1,3-di-o-tolylguanidine, 1,3-diphenylguanidine and the like.
- thiazole compound examples include 2-mercaptobenzothiazole, 2,4-dimethylthiazole and the like.
- tetrazole compounds include tetrazole, 5-methyltetrazole, 5-amino-1H-tetrazole, 1- (2-dimethylaminoethyl) -5-mercaptotetrazole and the like.
- triazine compound examples include 3,4-dihydro-3-hydroxy-4-oxo-1,2,4-triazine.
- the content of the anticorrosive is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, more preferably 0.02% by mass based on the total mass of the abrasive from the viewpoint of suppressing corrosion and surface roughness of the metal material. More preferably, it is more preferably at least 0.05% by mass, particularly preferably at least 0.1% by mass.
- the content of the anticorrosive is preferably 10% by mass or less, more preferably 5.0% by mass or less, more preferably 0.5% by mass or less, based on the total mass of the abrasive, from the viewpoint of obtaining a good polishing rate of the metal material.
- the mass% or less is further preferable, and 0.3 mass% or less is particularly preferable.
- the anticorrosive can form a protective film against a wiring metal such as a copper-based metal or a cobalt-based metal, thereby suppressing the etching of the wiring metal and making it easy to reduce the roughness of the polished surface.
- the anticorrosive agent is preferably at least one selected from the group consisting of a triazole compound, a pyridine compound, an imidazole compound, a tetrazole compound, a triazine compound, and hexamethylenetetramine.
- 2,3-triazolo [4,5-b] pyridin-3-ol 1-hydroxybenzotriazole, 1H-1,2,3-triazolo [4,5-b] pyridine, benzotriazole, 3-hydroxypyridine, More preferred is at least one selected from the group consisting of benzimidazole, 5-amino-1H-tetrazole, 3,4-dihydro-3-hydroxy-4-oxo-1,2,4-triazine and hexamethylenetetramine.
- the mass ratio of the content of the acid component to the content of the anticorrosive agent in the abrasive ranges from 10/1 to 1/5 from the viewpoint of favorably controlling the etching rate and the polishing rate.
- the range of 7/1 to 1/5 is more preferable, the range of 5/1 to 1/5 is still more preferable, and the range of 5/1 to 1/1 is particularly preferable.
- the abrasive according to this embodiment may contain an oxidant (oxidant component, metal oxidant).
- the polishing rate of a metal material (wiring metal, barrier metal, etc., for example, a metal layer) can be improved because the polishing agent contains an oxidizing agent.
- the oxidizing agent include hydrogen peroxide, peroxosulfate, potassium periodate, hypochlorous acid, and ozone water. Among these, hydrogen peroxide is preferable.
- An oxidizing agent can be used individually by 1 type or in combination of 2 or more types.
- the content of the oxidizing agent is preferably 0.01% by mass or more based on the total mass of the abrasive, from the viewpoint of preventing the metal material from being insufficiently oxidized and reducing the polishing rate of the metal material, and 0.05% by mass. % Or more is more preferable, 0.07 mass% or more is further preferable, 0.09 mass% or more is particularly preferable, and 0.1 mass% or more is very preferable.
- the content of the oxidizing agent is preferably 10% by mass or less, more preferably 8% by mass or less, based on the total mass of the abrasive, from the viewpoint of suppressing the occurrence of roughness on the surface to be polished and suppressing dishing to be small. preferable.
- content of an oxidizing agent can be adjusted so that content of the oxidizing agent contained in the said aqueous solution may become the said range in an abrasive
- the pH of the abrasive according to the present embodiment is preferably 1.0 or more, more preferably 1.5 or more, from the viewpoint that sufficient mechanical polishing power is easily obtained and the polishing rate of the resin is further improved. 0 or more is more preferable, 2.3 or more is particularly preferable, and 2.5 or more is extremely preferable.
- the pH of the abrasive is preferably 8.0 or less, more preferably 5.0 or less, still more preferably 4.0 or less, and particularly preferably 3.5 or less from the viewpoint of obtaining good dispersion stability of the abrasive grains. .
- the pH is defined as the pH at a liquid temperature of 25 ° C.
- the abrasive according to this embodiment may contain a pH adjuster (pH adjuster component).
- a pH adjuster By using a pH adjuster, the pH of the abrasive can be easily adjusted.
- the pH adjuster include ammonia, sodium hydroxide, potassium hydroxide, TMAH (tetramethylammonium hydroxide) and other basic components.
- the pH of the abrasive can be adjusted with the acid component or the like.
- the pH of the abrasive can be measured by a pH meter using a general glass electrode.
- a pH meter using a general glass electrode.
- trade name: Model (F-51) manufactured by HORIBA, Ltd. can be used.
- a phthalate pH standard solution (pH 4.01), a neutral phosphate pH standard solution (pH 6.86), and a borate pH standard solution (pH 9.18) were used as pH standard solutions, and a pH meter was used.
- the measured value of the pH is obtained by putting the electrode of the pH meter into the abrasive and measuring the value after 2 minutes or more has passed and stabilized.
- the liquid temperature of the standard buffer and the abrasive is, for example, 25 ° C.
- the abrasive may contain a surfactant (surfactant component).
- the surfactant include a water-soluble anionic surfactant, a water-soluble nonionic surfactant, and a water-soluble cationic surfactant.
- the water-soluble anionic surfactant include ammonium lauryl sulfate, polyoxyethylene lauryl ether ammonium sulfate, alkyl phosphate ester salt, polyoxyethylene alkyl ether phosphate, lauroyl sarcosine salt and the like.
- the water-soluble nonionic surfactant include polyoxyethylene lauryl ether and polyethylene glycol monostearate.
- Water-soluble cationic surfactants include hexadecyl trimethyl ammonium salt, myristyl trimethyl ammonium salt, lauryl trimethyl ammonium salt, stearyl trimethyl ammonium salt, cetyl trimethyl ammonium salt, stearyl trimethyl ammonium salt, distearyl dimethyl ammonium salt, alkylbenzyl Examples thereof include dimethylammonium salt, alkylbenzyldimethylammonium salt, coconutamine acetate, stearylamine acetate and the like. Among these, as the surfactant, a water-soluble anionic surfactant is preferable.
- At least one water-soluble anionic surfactant such as a polymer dispersant obtained by using an ammonium salt or a tetramethylammonium salt as a copolymerization component.
- Surfactant can be used individually by 1 type or in combination of 2 or more types.
- the content of the surfactant is, for example, 0.0001 to 0.1% by mass based on the total mass of the abrasive.
- each component contained in the abrasive and the method for diluting the abrasive are not particularly limited.
- each component can be dispersed or dissolved by stirring with a blade-type stirrer or ultrasonic dispersion.
- the mixing order of each component with respect to water is not limited.
- the abrasive according to this embodiment may be stored as a one-part abrasive containing at least abrasive grains, a water-soluble polymer having an ether bond, an organic solvent, and water.
- an additive liquid second liquid.
- polishing agent is divided into a slurry and an additive liquid so that slurry and an additive liquid may be mixed and it may become the said abrasive
- the slurry includes at least abrasive grains and water, for example.
- the additive liquid contains at least a water-soluble polymer having an ether bond, an organic solvent, and water, for example.
- additives such as an insulating material polishing inhibitor, an anticorrosive, an oxidizing agent, a surfactant, and an antifoaming agent are included in the additive liquid among the slurry and the additive liquid.
- the constituents of the abrasive may be stored in three or more liquids.
- the slurry and additive liquid may be mixed immediately before or during polishing to prepare the abrasive.
- the slurry and additive liquid in the multi-liquid type abrasive may be respectively supplied onto the polishing surface plate, and the surface to be polished may be polished using an abrasive obtained by mixing the slurry and the additive liquid on the polishing surface plate. .
- polishing agent which concerns on this embodiment is a storage solution for obtaining the said abrasive
- the abrasive stock solution is stored with the amount of water reduced compared to the time of use, and is diluted with water before use or at the time of use and used as the abrasive.
- the abrasive stock solution is different from the abrasive in that the water content is less than that of the abrasive.
- the dilution factor is, for example, 1.5 times or more.
- the polishing method according to the present embodiment includes a polishing step of removing at least a part of the resin by CMP of the substrate having the resin using an abrasive.
- a substrate having a resin is polished.
- the base has, for example, a resin formed on a substrate having a concave portion and a convex portion on the surface.
- the substrate may be a wiring board, for example.
- the polishing method may include, for example, a CMP process in which at least a part of the resin is removed by CMP of the substrate using a one-pack type polishing agent as the polishing process.
- the substrate may be subjected to CMP using an abrasive obtained by mixing the slurry in the agent and the additive solution to remove at least a part of the resin, and the abrasive stock solution is diluted with water.
- the substrate may be subjected to CMP using the resulting abrasive to remove at least a part of the resin.
- the polishing may be stopped when the insulating material is exposed by polishing the resin.
- the polishing method according to the present embodiment may include a step of preparing a substrate having a resin before the CMP step.
- the polishing method according to the present embodiment includes an abrasive preparation step of obtaining an abrasive by mixing a slurry and an additive liquid in the multi-liquid abrasive before the CMP step. May be.
- polishing method which concerns on this embodiment may be equipped with the abrasive
- the surface to be polished of the substrate is pressed against a polishing cloth (polishing pad) of a polishing surface plate, and an abrasive is supplied between the surface to be polished and the polishing cloth, so that the back surface of the substrate (surface to be polished)
- the surface to be polished is polished by moving the substrate relative to the polishing surface plate while applying a predetermined pressure to the surface opposite to the surface.
- a general polishing apparatus having a surface plate on which a motor capable of changing the number of rotations and the like and a polishing cloth can be attached and a holder for holding the substrate can be used.
- abrasive cloth A general nonwoven fabric, a polyurethane foam, a porous fluororesin, etc. can be used.
- the polishing conditions are not particularly limited, but the rotation speed of the surface plate is preferably a low rotation of 200 times / min or less so that the substrate does not jump out. For example, during polishing, an abrasive is continuously supplied to the polishing cloth with a pump or the like.
- the polishing method according to the present embodiment preferably includes a polishing cloth conditioning step before the CMP step.
- the polishing cloth is conditioned with a liquid containing at least water.
- the polishing method according to this embodiment preferably includes a substrate cleaning step after the CMP step.
- the substrate after polishing is preferably washed in running water, and then dried after removing water droplets adhering to the substrate using spin drying or the like.
- the brush is pressed against the substrate with a certain pressure to remove the deposits on the substrate, and then washed by a known cleaning method and then dried. More preferably.
- the abrasive according to this embodiment at least a part of the resin can be removed by CMP of the substrate having the resin.
- a double patterning application can be cited. The polishing method according to this embodiment will be described with reference to FIG.
- a base having a substrate 11 and a silicon oxide 12 having a predetermined pattern and formed on the substrate 11 is prepared (FIG. 2A).
- the resin 13 is applied and cured on the substrate 11 and the silicon oxide 12 (FIG. 2B).
- a pattern similar to the pattern of the silicon oxide 12 is formed on the surface of the resin 13.
- Such a resin 13 may be generally called a sacrificial film.
- the surface layer portion of the resin 13 is CMPed until the silicon oxide 12 is exposed, and the surface constituted by the surface of the silicon oxide 12 and the surface of the resin 13 is planarized (FIG. 2C).
- the surface of the substrate that has been sufficiently planarized by the CMP process has few irregularities formed at the time of applying the photoresist, and it is difficult to reduce the depth of focus and the yield. Further, since the silicon oxide 12 is prevented from being polished after the silicon oxide 12 is exposed, the surface of the substrate can be finished uniformly. Note that an antireflection film (BARC film) may be formed after the step of FIG.
- BARC film antireflection film
- a photoresist 14 is uniformly applied to the surfaces of the silicon oxide 12 and the resin 13 (FIG. 2D). Then, the mask pattern is transferred to the photoresist 14 using an exposure apparatus. After heat-treating the substrate after pattern transfer, development processing is performed to remove unnecessary portions of the photoresist 14 (FIG. 2E).
- a portion of the silicon oxide 12 exposed between the photoresists 14 is removed by dry etching using a plasma gas or the like (FIG. 2F). Then, the photoresist 14 is stripped using a solution or the like in which ethanolamines and an organic solvent are combined (FIG. 2 (g)). Further, the resin 13 is removed by wet etching (FIG. 2 (h)). As described above, a line-and-space pattern that is half the pitch of the initial pattern of silicon oxide 12 (FIG. 2A) is formed.
- the resin polishing rate is preferably the following polishing rate from the viewpoint of being suitable for double patterning applications. From the viewpoint of shortening the polishing time, the resin polishing rate is preferably 100 nm / min or more, more preferably 110 nm / min or more, still more preferably 140 nm / min or more, and particularly preferably 150 nm / min or more.
- the polishing rate of the resin is preferably 1000 nm / min or less from the viewpoint that the excessive polishing of the resin recess is suppressed and the flatness is further improved, and the polishing time is easy to adjust. 800 nm / min or less is more preferable.
- the present invention will be described in more detail with reference to examples.
- the present invention is not limited to these examples without departing from the technical idea of the present invention.
- the kind of abrasive material and the blending ratio thereof may be other kinds and ratios than the kind and ratio described in this embodiment
- the composition and structure of the object to be polished are also compositions other than the composition and structure described in this embodiment.
- the structure may be acceptable.
- Example 1 (polyoxypropylene polyglyceryl ether, manufactured by Sakamoto Yakuhin Kogyo Co., Ltd., trade name: SC-P1000, weight average molecular weight: 1000) as a water-soluble polymer having an ether bond, 0.300 parts by mass, and propylene glycol mono as an organic solvent 5.000 parts by mass of propyl ether and malic acid as an acid component were put in a container. Furthermore, after pouring ultrapure water X mass part, it stirred and dissolved each component.
- Example 2 to 18, Comparative Examples 1 to 5 An abrasive was prepared in the same manner as in Example 1 except that the types and contents of the abrasive grains, the water-soluble polymer having an ether bond, the organic solvent and the acid component were changed as shown in Tables 1 to 3. .
- benzotriazole was used as an anticorrosive and 30% by mass of hydrogen peroxide was used as an oxidizing agent.
- the amount of each component in Tables 1 to 3 is the content (unit: mass%) based on the total mass of the abrasive. Details of the abrasive grains, water-soluble polymers having an ether bond, and organic solvents in Tables 1 to 3 are shown in Tables 4 to 6, respectively.
- zeta potential measuring device trade name: DELSA NANO C manufactured by Beckman Coulter, Inc. was used. A sample was obtained by diluting the abrasive with pure water so that the scattering intensity of the measurement sample was 1.0 ⁇ 10 4 to 5.0 ⁇ 10 4 cps in a zeta potential measurement device. Thereafter, the obtained sample was put in a cell for measuring zeta potential, and zeta potential was measured. The results are shown in Tables 1 to 3.
- a substrate to be polished (resin substrate having a resin film), a substrate obtained by forming a film-shaped heterocyclic ring-containing resin with a thickness of 200 nm on a silicon substrate, and a film-shaped polyimide resin with a thickness of 200 nm as a silicon substrate The substrate obtained by forming on top was used.
- the resin film was subjected to chemical mechanical polishing for 60 seconds under the following polishing conditions.
- the polyimide resin was polished in Examples 1 to 5, 9 to 10, 15 to 18, and Comparative Examples 1 to 2.
- Polishing machine Single-side polishing machine (Applied Materials, trade name MIRRA) Polishing cloth: Polishing cloth made of suede foam polyurethane resin Surface plate rotation speed: 93 times / min Head rotation speed: 87 times / min Polishing pressure: 14 kPa Abrasive supply amount: 200 mL / min
- a sponge brush (made of polyvinyl alcohol resin) was pressed against the surface to be polished of the resin substrate polished in the polishing step, and the substrate and the sponge brush were rotated while supplying distilled water to the surface to be polished, and washed for 60 seconds. Next, the sponge brush was removed, and distilled water was supplied to the polished surface of the substrate for 60 seconds. Finally, the substrate was dried by spinning off the distilled water by rotating the substrate at a high speed.
- the polishing rate was calculated from the difference in film thickness obtained by measuring the film thickness of the resin film before and after polishing.
- a film thickness measuring device Dainippon Screen Mfg. Co., Ltd., trade name: Lambda Ace, VL-M8000LS was used. The results are shown in Tables 1 to 3.
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Abstract
Description
本明細書において「工程」との語には、独立した工程だけでなく、他の工程と明確に区別できないもののその工程の所期の作用が達成される工程が含まれる。
本実施形態に係る樹脂研磨用研磨剤(以下、単に「研磨剤」という場合がある)は、研磨時に被研磨面に触れる組成物であり、例えばCMP用研磨剤である。
研磨対象である樹脂としては、フェノール樹脂、エポキシ樹脂、アクリル樹脂、メタクリル樹脂、ノボラック樹脂、ポリエステル樹脂(不飽和ポリエステル樹脂等)、ポリイミド樹脂、ポリアミドイミド樹脂、ポリベンゾオキサゾール(PBO)、ポリアリルエーテル樹脂、複素環含有樹脂(前記で例示した樹脂を除く)等の樹脂材料などが挙げられる。上記「複素環含有樹脂」としては、ピロール環含有樹脂、ピリジン環含有樹脂、イミダゾール環含有樹脂等が挙げられる。樹脂の形成方法としては、特に制限はないが、蒸着法、スピーンコート法等が挙げられる。樹脂の形状は、特に制限はないが、例えば膜状(樹脂膜)である。本実施形態に係る研磨剤は、樹脂基板の研磨にも用いることができる。
本実施形態に係る研磨剤は、砥粒を含有する。砥粒は、研磨剤中で正の電荷を有している。また、砥粒の平均粒径は20nmより大きい。研磨剤がこのような砥粒を含有することにより、樹脂の良好な研磨速度を得ることができる。
本実施形態に係る研磨剤は、エーテル結合を有する水溶性高分子を含有する。エーテル結合を有する水溶性高分子を研磨剤が含有することで、樹脂に対する良好な研磨速度を得ることができる。
[条件]
試料:20μL
標準ポリエチレングリコール:ポリマー・ラボラトリー社製、標準ポリエチレングリコール(分子量:106、194、440、600、1470、4100、7100、10300、12600、23000)
検出器:昭和電工株式会社製、RI-モニター、商品名「Syodex-RI SE-61」
ポンプ:株式会社日立製作所製、商品名「L-6000」
カラム:昭和電工株式会社製、商品名「GS-220HQ」、「GS-620HQ」をこの順番で連結して使用
溶離液:0.4mol/Lの塩化ナトリウム水溶液
測定温度:30℃
流速:1.00mL/min
測定時間:45min
本実施形態に係る研磨剤は、有機溶媒を含有する。研磨剤が有機溶媒を含有することにより、樹脂の研磨速度及び研磨剤の濡れ性を向上させることができる。有機溶媒としては、特に制限はないが、20℃で液状の溶媒が好ましい。100gの水(20℃)に対する有機溶媒の溶解度は、研磨剤を高濃縮化する観点から、30g以上が好ましく、50g以上がより好ましく、100g以上が更に好ましい。有機溶媒は、一種を単独で、又は、二種以上を組み合わせて使用できる。
本実施形態に係る研磨剤は水を含有する。水は、他の成分の分散媒、又は、溶媒として用いられる。水としては、他の成分の作用を阻害することを防止するために、不純物を可能な限り含有しないものが好ましい。具体的には、水としては、イオン交換樹脂にて不純物イオンを除去した後にフィルタを通して異物を除去した純水、超純水及び蒸留水からなる群より選ばれる少なくとも一種が好ましい。
本実施形態に係る添加剤は、研磨剤中の砥粒の分散性の向上、研磨剤の化学的安定性の向上、研磨速度の向上等の目的で、砥粒、エーテル結合を有する水溶性高分子、有機溶媒及び水以外の成分を更に含有してもよい。このような成分としては、酸成分、絶縁材料研磨抑制剤、防食剤、酸化剤、界面活性剤、消泡剤等の添加剤が挙げられる。添加剤の研磨剤中の含有量は、研磨剤の特性を損なわない範囲で任意に決定できる。
本実施形態に係る研磨剤は、酸成分を含有してもよい。本実施形態に係る研磨剤が酸成分を含有することにより、研磨剤の液状安定性を高めることができると共に被研磨面を良好に平坦化できる。また、樹脂に加えて配線金属又はバリア金属を同時に研磨する場合において、酸成分は配線金属又はバリア金属の溶解を促し、配線金属又はバリア金属の研磨速度を向上させることができる。
本実施形態に係る研磨剤は、絶縁材料の研磨を抑制する成分として、絶縁材料研磨抑制剤(絶縁材料研磨抑制剤成分。例えば無機絶縁膜研磨抑制剤)を含有してもよい。研磨剤が絶縁材料研磨抑制剤を含有することにより、絶縁材料の研磨速度を抑制し、樹脂を絶縁材料に対して選択的に除去できる。
本実施形態に係る研磨剤は、防食剤(防食剤成分、金属防食剤)を含有してもよい。防食剤としては、特に制限はなく、金属材料に対する防食作用を有する化合物として従来公知の成分がいずれも使用可能である。防食剤としては、具体的には、トリアゾール化合物、ピリジン化合物、ピラゾール化合物、ピリミジン化合物、イミダゾール化合物、グアニジン化合物、チアゾール化合物、テトラゾール化合物、トリアジン化合物及びヘキサメチレンテトラミンからなる群より選ばれる少なくとも一種を用いることができる。ここで、「化合物」とは、その骨格を有する化合物の総称であり、例えば「トリアゾール化合物」とは、トリアゾール骨格を有する化合物を意味する。防食剤としては、トリアゾール骨格を有するトリアゾール化合物が好ましい。防食剤は、一種を単独で、又は、二種以上を組み合わせて使用できる。
本実施形態に係る研磨剤は、酸化剤(酸化剤成分、金属酸化剤)を含有してもよい。研磨剤が酸化剤を含有することで金属材料(配線金属、バリア金属等。例えば金属層)の研磨速度を向上させることができる。酸化剤は、特に制限はなく、通常用いられる酸化剤から適宜選択することができる。具体的には、酸化剤としては、過酸化水素、ペルオキソ硫酸塩、過ヨウ素酸カリウム、次亜塩素酸、オゾン水等が挙げられ、これらの中でも過酸化水素が好ましい。なお、上記酸成分である硝酸を酸化剤として用いてもよい。酸化剤は、一種を単独で、又は、二種以上を組み合わせて使用できる。
本実施形態に係る研磨剤のpHは、充分な機械的研磨力が得られ易く、樹脂の研磨速度が更に向上する観点から、1.0以上が好ましく、1.5以上がより好ましく、2.0以上が更に好ましく、2.3以上が特に好ましく、2.5以上が極めて好ましい。研磨剤のpHは、砥粒の良好な分散安定性が得られる観点から、8.0以下が好ましく、5.0以下がより好ましく、4.0以下が更に好ましく、3.5以下が特に好ましい。pHは液温25℃におけるpHと定義する。
研磨剤は、界面活性剤(界面活性剤成分)を含有していてもよい。界面活性剤としては、水溶性陰イオン性界面活性剤、水溶性非イオン性界面活性剤、水溶性陽イオン性界面活性剤等が挙げられる。水溶性陰イオン性界面活性剤としては、ラウリル硫酸アンモニウム、ポリオキシエチレンラウリルエーテル硫酸アンモニウム、アルキルリン酸エステル塩、ポリオキシエチレンアルキルエーテルリン酸塩、ラウロイルサルコシン塩等が挙げられる。水溶性非イオン性界面活性剤としては、ポリオキシエチレンラウリルエーテル、ポリエチレングリコールモノステアレート等が挙げられる。水溶性陽イオン性界面活性剤としては、ヘキサデシルトリメチルアンモニウム塩、ミリスチルトリメチルアンモニウム塩、ラウリルトリメチルアンモニウム塩、ステアリルトリメチルアンモニウム塩、セチルトリメチルアンモニウム塩、ステアリルトリメチルアンモニウム塩、ジステアリルジメチルアンモニウム塩、アルキルベンジルジメチルアンモニウム塩、アルキルベンジルジメチルアンモニウム塩、ココナットアミンアセテート、ステアリルアミンアセテート等が挙げられる。これらの中でも、界面活性剤としては、水溶性陰イオン性界面活性剤が好ましい。特に、共重合成分としてアンモニウム塩又はテトラメチルアンモニウム塩を用いて得られた高分子分散剤等の水溶性陰イオン性界面活性剤の少なくとも一種を使用することがより好ましい。界面活性剤は、一種を単独で、又は、二種以上を組み合わせて使用できる。界面活性剤の含有量は、研磨剤の全質量基準で例えば0.0001~0.1質量%である。
本実施形態に係る研磨剤用貯蔵液は、前記研磨剤を得るための貯蔵液であり、研磨剤用貯蔵液を水で希釈することにより前記研磨剤が得られる。研磨剤用貯蔵液は、水の量を使用時よりも減じて保管されており、使用前又は使用時に水で希釈されて前記研磨剤として用いられる。研磨剤用貯蔵液は、水の含有量が前記研磨剤よりも少ない点で前記研磨剤と異なっている。希釈倍率は、例えば1.5倍以上である。
本実施形態に係る研磨方法は、研磨剤を用いて、樹脂を有する基体をCMPして、樹脂の少なくとも一部を除去する研磨工程を備えている。本実施形態に係る研磨方法では、樹脂を有する基体を研磨する。基体は、例えば、表面に凹部及び凸部を有する基板上に形成された樹脂を有する。基体は、例えば、配線板であってよい。
(実施例1)
エーテル結合を有する水溶性高分子としてA1(ポリオキシプロピレンポリグリセリルエーテル、阪本薬品工業株式会社製、商品名:SC-P1000、重量平均分子量:1000)0.300質量部と、有機溶媒としてプロピレングリコールモノプロピルエーテル5.000質量部と、酸成分としてリンゴ酸を容器に入れた。さらに、超純水X質量部を注いだ後に攪拌して各成分を溶解させた。次に、平均粒径(平均二次粒径)が70nmであるコロイダルシリカ1を3.000質量部添加して研磨剤100質量部を得た。砥粒の表面は、研磨剤中において正に帯電していた。なお、超純水の配合量X質量部は、研磨剤が100質量部になるよう計算して調整した。実施例1の研磨剤のpHは2.5であり、砥粒のゼータ電位は14mVであった。
砥粒、エーテル結合を有する水溶性高分子、有機溶媒及び酸成分の種類並びに含有量を表1~3に示されるとおりに変更した以外は、実施例1と同様の方法で研磨剤を調製した。実施例18では、防食剤としてベンゾトリアゾールを用い、酸化剤として30質量%の過酸化水素水を用いた。表1~3の各成分の量は、研磨剤の全質量を基準とした含有量(単位:質量%)である。なお、表1~3中の砥粒、エーテル結合を有する水溶性高分子及び有機溶媒の詳細をそれぞれ表4~6に示す。
研磨剤のpHは下記の条件で測定した。結果を表1~3に示す。
測定温度:25±5℃
測定装置:株式会社堀場製作所の商品名:Model(F-51)
測定方法:フタル酸塩pH標準液(pH4.01)と、中性リン酸塩pH標準液(pH6.86)と、ホウ酸塩pH標準液(pH9.18)とをpH標準液として用い、pHメーターを3点校正した後、pHメーターの電極を研磨剤に入れて、2min以上経過して安定した後のpHを前記測定装置により測定した。
ゼータ電位測定装置は、ベックマンコールター社製の商品名:DELSA NANO Cを用いた。ゼータ電位測定装置において測定サンプルの散乱強度が1.0×104~5.0×104cpsとなるように研磨剤を純水で希釈してサンプルを得た。その後、得られたサンプルをゼータ電位測定用セルに入れてゼータ電位を測定した。結果を表1~3に示す。
被研磨対象の基体(樹脂膜を有する樹脂基板)として、厚み200nmの膜状の複素環含有樹脂をシリコン基板上に形成して得られる基体、及び、厚み200nmの膜状のポリイミド樹脂をシリコン基板上に形成して得られる基体を用いた。上記で調製した研磨剤を用いて、下記研磨条件にて60秒間樹脂膜を化学機械研磨した。なお、ポリイミド樹脂の研磨は、実施例1~5、9~10、15~18及び比較例1~2において行った。
研磨装置:片面用研磨機(アプライドマテリアルズ製、商品名MIRRA)
研磨布:スウェード状発泡ポリウレタン樹脂製研磨布
定盤回転数:93回/min
ヘッド回転数:87回/min
研磨圧力:14kPa
研磨剤の供給量:200mL/min
Claims (15)
- 砥粒と、エーテル結合を有する水溶性高分子と、有機溶媒と、水と、を含有し、
前記砥粒が研磨剤中で正の電荷を有し、
前記砥粒の平均粒径が20nmより大きい、樹脂研磨用研磨剤。 - 前記水溶性高分子がポリエーテルを含む、請求項1に記載の研磨剤。
- 前記水溶性高分子が多糖類を含む、請求項1又は2に記載の研磨剤。
- 前記砥粒がコロイダルシリカを含む、請求項1~3のいずれか一項に記載の研磨剤。
- pHが1.0~8.0である、請求項1~4のいずれか一項に記載の研磨剤。
- 酸成分を更に含有する、請求項1~5のいずれか一項に記載の研磨剤。
- 絶縁材料研磨抑制剤を更に含有する、請求項1~6のいずれか一項に記載の研磨剤。
- 防食剤を更に含有する、請求項1~7のいずれか一項に記載の研磨剤。
- 酸化剤を更に含有する、請求項1~8のいずれか一項に記載の研磨剤。
- pH調整剤を更に含有する、請求項1~9のいずれか一項に記載の研磨剤。
- 界面活性剤を更に含有する、請求項1~10のいずれか一項に記載の研磨剤。
- 前記砥粒及び水を含む第一の液と、
前記水溶性高分子、前記有機溶媒及び水を含む第二の液と、を有する複数液式研磨剤として保存される、請求項1~11のいずれか一項に記載の研磨剤。 - 請求項1~12のいずれか一項に記載の研磨剤を得るための研磨剤用貯蔵液であって、水で希釈することにより前記研磨剤が得られる、研磨剤用貯蔵液。
- 樹脂を有する基体を用意する工程と、
請求項1~12のいずれか一項に記載の研磨剤を用いて前記基体を化学機械研磨して、前記樹脂の少なくとも一部を除去する工程と、を備える、研磨方法。 - 樹脂を有する基体を用意する工程と、
請求項13に記載の研磨剤用貯蔵液を水で希釈して前記研磨剤を得る工程と、
前記研磨剤を用いて前記基体を化学機械研磨して、前記樹脂の少なくとも一部を除去する工程と、を備える、研磨方法。
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| KR1020177022783A KR102583709B1 (ko) | 2015-03-10 | 2016-03-08 | 연마제, 연마제용 저장액 및 연마 방법 |
| JP2017505358A JP6879202B2 (ja) | 2015-03-10 | 2016-03-08 | 研磨剤、研磨剤用貯蔵液及び研磨方法 |
| US15/556,824 US10946494B2 (en) | 2015-03-10 | 2016-03-08 | Polishing agent, stock solution for polishing agent, and polishing method |
| CN201680013897.9A CN107406752B (zh) | 2015-03-10 | 2016-03-08 | 研磨剂、研磨剂用储存液和研磨方法 |
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Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102923279B1 (ko) * | 2015-10-23 | 2026-02-05 | 니타 듀퐁 가부시키가이샤 | 연마용 조성물 |
| JP6218000B2 (ja) | 2016-02-19 | 2017-10-25 | メック株式会社 | 銅のマイクロエッチング剤および配線基板の製造方法 |
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| CN108084887A (zh) * | 2017-12-21 | 2018-05-29 | 惠州市米特仑科技有限公司 | 一种氧化硅抛光液的制备方法 |
| CN108034361A (zh) * | 2017-12-21 | 2018-05-15 | 惠州市米特仑科技有限公司 | 一种酸性氧化铝抛光液的制备方法 |
| CN109021834A (zh) * | 2018-08-29 | 2018-12-18 | 德米特(苏州)电子环保材料有限公司 | 一种氧化铝基质的树脂镜片抛光液及其制备方法 |
| US10759970B2 (en) | 2018-12-19 | 2020-09-01 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of using same |
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| CN111378386B (zh) * | 2018-12-28 | 2022-04-01 | 安集微电子(上海)有限公司 | 一种氧化铈磨料在pi介电材料抛光中的用途 |
| WO2020231723A1 (en) | 2019-05-13 | 2020-11-19 | Ecolab Usa Inc. | 1,2,4-triazolo[1,5-a] pyrimidine derivative as copper corrosion inhibitor |
| KR102723156B1 (ko) * | 2019-06-20 | 2024-10-29 | 후지필름 가부시키가이샤 | 연마액, 및, 화학적 기계적 연마 방법 |
| US11292938B2 (en) * | 2019-09-11 | 2022-04-05 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Method of selective chemical mechanical polishing cobalt, zirconium oxide, poly-silicon and silicon dioxide films |
| JP7557532B2 (ja) * | 2019-10-24 | 2024-09-27 | バーサム マテリアルズ ユーエス,リミティド ライアビリティ カンパニー | 高い酸化物除去速度を有するシャロートレンチアイソレーション化学的機械平坦化組成物 |
| TWI767355B (zh) * | 2019-10-24 | 2022-06-11 | 美商慧盛材料美國責任有限公司 | 高氧化物移除速率的淺溝隔離化學機械平坦化組合物、系統及方法 |
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| KR102228733B1 (ko) * | 2020-09-29 | 2021-03-18 | 주식회사 투에이치플러스 | 싱크대 바닥면의 마감처리방법 |
| US11680186B2 (en) | 2020-11-06 | 2023-06-20 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of using same |
| KR20240006690A (ko) * | 2021-08-31 | 2024-01-15 | 가부시끼가이샤 레조낙 | 연마액, 연마 방법, 부품의 제조 방법, 및, 반도체 부품의 제조 방법 |
| KR102728251B1 (ko) * | 2021-12-31 | 2024-11-11 | 주식회사 케이씨텍 | 컨택 공정용 금속막 슬러리 조성물 |
| CN114958302B (zh) * | 2022-05-26 | 2024-06-18 | 珠海戴蒙斯科技有限公司 | 一种高效的研磨液及其制备方法和应用 |
| JPWO2024010048A1 (ja) * | 2022-07-05 | 2024-01-11 | ||
| WO2024112735A1 (en) * | 2022-11-23 | 2024-05-30 | Engis Corporation | Fixed-abrasive nano-grinding plates, related articles, and related methods |
| KR20240120910A (ko) * | 2023-02-01 | 2024-08-08 | 주식회사 케이씨텍 | 연마 슬러리 조성물 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008541158A (ja) * | 2005-05-13 | 2008-11-20 | アンジ マイクロエレクトロニクス(シャンハイ)カンパニー, リミテッド | フォトレジスト層除去用組成物及びその使用方法 |
| JP2009224695A (ja) * | 2008-03-18 | 2009-10-01 | Fujifilm Corp | 研磨用組成物及びそれを用いた化学的機械的研磨方法 |
| JP2010056199A (ja) * | 2008-08-27 | 2010-03-11 | Fujifilm Corp | 研磨用組成物及びそれを用いた研磨方法 |
| JP2010080842A (ja) * | 2008-09-29 | 2010-04-08 | Fujifilm Corp | 研磨用組成物及びそれを用いた研磨方法 |
| JP2011060888A (ja) * | 2009-09-08 | 2011-03-24 | Hitachi Chem Co Ltd | 研磨液 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759917A (en) * | 1996-12-30 | 1998-06-02 | Cabot Corporation | Composition for oxide CMP |
| US7300601B2 (en) * | 2002-12-10 | 2007-11-27 | Advanced Technology Materials, Inc. | Passivative chemical mechanical polishing composition for copper film planarization |
| WO2007019342A2 (en) * | 2005-08-05 | 2007-02-15 | Advanced Technology Materials, Inc. | High throughput chemical mechanical polishing composition for metal film planarization |
| KR101194881B1 (ko) | 2006-01-31 | 2012-10-25 | 히다치 가세고교 가부시끼가이샤 | 절연막 연마용 cmp 연마제, 연마 방법, 상기 연마 방법으로 연마된 반도체 전자 부품 |
| KR100876816B1 (ko) | 2007-06-29 | 2009-01-07 | 주식회사 하이닉스반도체 | 반도체 소자의 미세 패턴 형성 방법 |
| DE102008008184A1 (de) * | 2008-02-08 | 2009-08-13 | Evonik Degussa Gmbh | Verfahren zum Polieren einer Siliciumoberfläche mittels einer ceroxidhaltigen Dispersion |
| TW201000613A (en) * | 2008-04-23 | 2010-01-01 | Hitachi Chemical Co Ltd | Polishing agent and method for polishing substrate using the same |
| WO2011021599A1 (ja) * | 2009-08-19 | 2011-02-24 | 日立化成工業株式会社 | Cmp研磨液及び研磨方法 |
| CN102597142B (zh) | 2009-11-13 | 2014-09-17 | 巴斯夫欧洲公司 | 包含无机粒子与聚合物粒子的化学机械抛光(cmp)组合物 |
| JP5621735B2 (ja) | 2010-09-03 | 2014-11-12 | 信越化学工業株式会社 | パターン形成方法及び化学増幅ポジ型レジスト材料 |
| WO2012032467A1 (en) * | 2010-09-08 | 2012-03-15 | Basf Se | Process for chemically mechanically polishing substrates containing silicon oxide dielectric films and polysilicon and/or silicon nitride films |
| JP2012146975A (ja) * | 2010-12-24 | 2012-08-02 | Hitachi Chem Co Ltd | 研磨液及びこの研磨液を用いた基板の研磨方法 |
| CN102585708A (zh) * | 2012-03-13 | 2012-07-18 | 上海华明高纳稀土新材料有限公司 | 稀土抛光材料及其制备方法 |
| WO2013137220A1 (ja) * | 2012-03-14 | 2013-09-19 | 日立化成株式会社 | 研磨方法 |
| CN104395425A (zh) * | 2012-06-11 | 2015-03-04 | 嘉柏微电子材料股份公司 | 用于抛光钼的组合物和方法 |
-
2016
- 2016-03-08 JP JP2017505358A patent/JP6879202B2/ja active Active
- 2016-03-08 KR KR1020177022783A patent/KR102583709B1/ko active Active
- 2016-03-08 CN CN201680013897.9A patent/CN107406752B/zh active Active
- 2016-03-08 WO PCT/JP2016/057222 patent/WO2016143797A1/ja not_active Ceased
- 2016-03-08 US US15/556,824 patent/US10946494B2/en active Active
- 2016-03-09 TW TW105107122A patent/TWI745288B/zh active
-
2021
- 2021-01-07 JP JP2021001358A patent/JP2021066888A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008541158A (ja) * | 2005-05-13 | 2008-11-20 | アンジ マイクロエレクトロニクス(シャンハイ)カンパニー, リミテッド | フォトレジスト層除去用組成物及びその使用方法 |
| JP2009224695A (ja) * | 2008-03-18 | 2009-10-01 | Fujifilm Corp | 研磨用組成物及びそれを用いた化学的機械的研磨方法 |
| JP2010056199A (ja) * | 2008-08-27 | 2010-03-11 | Fujifilm Corp | 研磨用組成物及びそれを用いた研磨方法 |
| JP2010080842A (ja) * | 2008-09-29 | 2010-04-08 | Fujifilm Corp | 研磨用組成物及びそれを用いた研磨方法 |
| JP2011060888A (ja) * | 2009-09-08 | 2011-03-24 | Hitachi Chem Co Ltd | 研磨液 |
Cited By (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831914B (zh) * | 2016-09-29 | 2021-03-12 | 花王株式会社 | 研磨液组合物 |
| WO2018062403A1 (ja) * | 2016-09-29 | 2018-04-05 | 花王株式会社 | 研磨液組成物 |
| JP2018059054A (ja) * | 2016-09-29 | 2018-04-12 | 花王株式会社 | 研磨液組成物 |
| CN109831914A (zh) * | 2016-09-29 | 2019-05-31 | 花王株式会社 | 研磨液组合物 |
| CN109863579A (zh) * | 2016-09-29 | 2019-06-07 | 花王株式会社 | 研磨液组合物 |
| JPWO2018062403A1 (ja) * | 2016-09-29 | 2019-07-11 | 花王株式会社 | 研磨液組成物 |
| WO2018062401A1 (ja) * | 2016-09-29 | 2018-04-05 | 花王株式会社 | 研磨液組成物 |
| TWI743213B (zh) * | 2016-09-29 | 2021-10-21 | 日商花王股份有限公司 | 研磨液組合物 |
| US11773291B2 (en) | 2017-03-27 | 2023-10-03 | Resonac Corporation | Polishing liquid, polishing liquid set, and polishing method |
| US11814548B2 (en) | 2017-03-27 | 2023-11-14 | Resonac Corporation | Polishing liquid, polishing liquid set, and polishing method |
| US11566150B2 (en) | 2017-03-27 | 2023-01-31 | Showa Denko Materials Co., Ltd. | Slurry and polishing method |
| JP2019153678A (ja) * | 2018-03-02 | 2019-09-12 | Agc株式会社 | 研磨剤と研磨方法、および研磨用添加液 |
| JP7404255B2 (ja) | 2018-03-14 | 2023-12-25 | シーエムシー マテリアルズ リミティド ライアビリティ カンパニー | Sti用途のcmp組成物 |
| JP2021517358A (ja) * | 2018-03-14 | 2021-07-15 | シーエムシー マテリアルズ,インコーポレイティド | Sti用途のcmp組成物 |
| US11767448B2 (en) | 2018-03-22 | 2023-09-26 | Resonac Corporation | Polishing liquid, polishing liquid set, and polishing method |
| US11572490B2 (en) | 2018-03-22 | 2023-02-07 | Showa Denko Materials Co., Ltd. | Polishing liquid, polishing liquid set, and polishing method |
| US11352523B2 (en) * | 2018-03-22 | 2022-06-07 | Showa Denko Materials Co., Ltd. | Polishing liquid, polishing liquid set and polishing method |
| WO2019240235A1 (ja) * | 2018-06-14 | 2019-12-19 | 日立化成株式会社 | 研磨液及び研磨方法 |
| JPWO2019240235A1 (ja) * | 2018-06-14 | 2021-06-10 | 昭和電工マテリアルズ株式会社 | 研磨液及び研磨方法 |
| WO2019239555A1 (ja) * | 2018-06-14 | 2019-12-19 | 日立化成株式会社 | 研磨液及び研磨方法 |
| JP7115541B2 (ja) | 2018-06-14 | 2022-08-09 | 昭和電工マテリアルズ株式会社 | 研磨液及び研磨方法 |
| US11499078B2 (en) | 2018-07-26 | 2022-11-15 | Showa Denko Materials Co., Ltd. | Slurry, polishing solution production method, and polishing method |
| US11492526B2 (en) | 2018-07-26 | 2022-11-08 | Showa Denko Materials Co., Ltd. | Slurry, method for producing polishing liquid, and polishing method |
| US11505731B2 (en) | 2018-07-26 | 2022-11-22 | Showa Denko Materials Co., Ltd. | Slurry and polishing method |
| US11518920B2 (en) | 2018-07-26 | 2022-12-06 | Showa Denko Materials Co., Ltd. | Slurry, and polishing method |
| US12173219B2 (en) | 2018-07-26 | 2024-12-24 | Resonac Corporation | Slurry and polishing method |
| US12104112B2 (en) | 2018-07-26 | 2024-10-01 | Resonac Corporation | Slurry, screening method, and polishing method |
| US12247140B2 (en) | 2018-09-25 | 2025-03-11 | Resonac Corporation | Slurry and polishing method |
| JP2022511087A (ja) * | 2018-12-04 | 2022-01-28 | シーエムシー マテリアルズ,インコーポレイティド | コバルトcmpのための組成物および方法 |
| JP7508457B2 (ja) | 2018-12-04 | 2024-07-01 | シーエムシー マテリアルズ リミティド ライアビリティ カンパニー | コバルトcmpのための組成物および方法 |
| US10968366B2 (en) * | 2018-12-04 | 2021-04-06 | Cmc Materials, Inc. | Composition and method for metal CMP |
| JP7589149B2 (ja) | 2018-12-04 | 2024-11-25 | シーエムシー マテリアルズ リミティド ライアビリティ カンパニー | 銅バリアcmpのための組成物および方法 |
| JP2022511535A (ja) * | 2018-12-04 | 2022-01-31 | シーエムシー マテリアルズ,インコーポレイティド | 銅バリアcmpのための組成物および方法 |
| KR20210145780A (ko) | 2019-04-05 | 2021-12-02 | 도쿄엘렉트론가부시키가이샤 | 기판 처리 시스템 및 기판 처리 방법 |
| US12354968B2 (en) | 2019-05-10 | 2025-07-08 | Applied Materials, Inc. | Reconstituted substrate structure and fabrication methods for heterogeneous packaging integration |
| US12051653B2 (en) | 2019-05-10 | 2024-07-30 | Applied Materials, Inc. | Reconstituted substrate for radio frequency applications |
| US11931855B2 (en) | 2019-06-17 | 2024-03-19 | Applied Materials, Inc. | Planarization methods for packaging substrates |
| KR20220019053A (ko) * | 2019-06-17 | 2022-02-15 | 어플라이드 머티어리얼스, 인코포레이티드 | 기판들을 패키징하기 위한 평탄화 방법들 |
| KR102755448B1 (ko) | 2019-06-17 | 2025-01-14 | 어플라이드 머티어리얼스, 인코포레이티드 | 기판들을 패키징하기 위한 평탄화 방법들 |
| JP2022536930A (ja) * | 2019-06-17 | 2022-08-22 | アプライド マテリアルズ インコーポレイテッド | 基板をパッケージングするための平坦化方法 |
| JP7438243B2 (ja) | 2019-06-17 | 2024-02-26 | アプライド マテリアルズ インコーポレイテッド | 基板をパッケージングするための平坦化方法 |
| US12374611B2 (en) | 2019-11-27 | 2025-07-29 | Applied Materials, Inc. | Package core assembly and fabrication methods |
| US12388049B2 (en) | 2020-03-10 | 2025-08-12 | Applied Materials, Inc. | High connectivity device stacking |
| US11927885B2 (en) | 2020-04-15 | 2024-03-12 | Applied Materials, Inc. | Fluoropolymer stamp fabrication method |
| US12518986B2 (en) | 2020-07-24 | 2026-01-06 | Applied Materials, Inc. | Laser ablation system for package fabrication |
| US12374586B2 (en) | 2020-11-20 | 2025-07-29 | Applied Materials, Inc. | Methods of TSV formation for advanced packaging |
| WO2026083515A1 (ja) * | 2024-10-16 | 2026-04-23 | 株式会社レゾナック | 研磨方法及びスラリ |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021066888A (ja) | 2021-04-30 |
| KR102583709B1 (ko) | 2023-09-26 |
| TW201641663A (zh) | 2016-12-01 |
| US20180043497A1 (en) | 2018-02-15 |
| CN107406752B (zh) | 2020-05-08 |
| US10946494B2 (en) | 2021-03-16 |
| TWI745288B (zh) | 2021-11-11 |
| JPWO2016143797A1 (ja) | 2017-12-21 |
| KR20170126870A (ko) | 2017-11-20 |
| CN107406752A (zh) | 2017-11-28 |
| JP6879202B2 (ja) | 2021-06-02 |
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