摘要:
Water-laden solid matter is provided which is obtained by adding 40 to 300 weight parts of water to 100 weight parts of inorganic oxide particles synthesized by fumed process or metal evaporation oxidation process, slurry for polishing is provided which is manufactured by using the water-laden solid matter, and a method for manufacturing a semiconductor device using the above slurry. Said water-laden solid matter is within a range of 0.3 to 3 g/cm 3 in bulk density and within a range of 0.5 to 100 mm⊘ in average particle size when manufactured granular. Said slurry for polishing is manufactured from the water-laden solid matter, and the average particle size thereof after being dispersed in water is within a range of 0.05 to 1.0µm.
摘要:
Provided are an aqueous dispersion for chemical mechanical polishing, which planarizes a surface to be polished and has high shelf stability, a chemical mechanical polishing process excellent in selectivity when surfaces of different materials are polished, and a production process of a semiconductor device. A first aqueous dispersion contains a water-soluble quaternary ammonium salt, an inorganic acid salt, abrasive grains and an aqueous medium. A second aqueous dispersion contains at least a water-soluble quaternary ammonium salt, another basic organic compound than the water-soluble quaternary ammonium salt, an inorganic acid salt, a water-soluble polymer, abrasive grains and an aqueous medium. The second aqueous dispersion is composed of a first aqueous dispersion material (I) obtained by mixing a water-soluble quaternary ammonium salt and an inorganic acid salt into an aqueous medium, and a second aqueous dispersion material (II) obtained by mixing a water-soluble polymer and another basic organic compound than the water-soluble quaternary ammonium salt into an aqueous medium. Abrasive grains are contained in at least one of the aqueous dispersion materials.
摘要:
Water-laden solid matter is provided which is obtained by adding 40 to 300 weight parts of water to 100 weight parts of inorganic oxide particles synthesized by fumed process or metal evaporation oxidation process, slurry for polishing is provided which is manufactured by using the water-laden solid matter, and a method for manufacturing a semiconductor device using the above slurry. Said water-laden solid matter is within a range of 0.3 to 3 g/cm 3 in bulk density and within a range of 0.5 to 100 mm⌀ in average particle size when manufactured granular. Said slurry for polishing is manufactured from the water-laden solid matter, and the average particle size thereof after being dispersed in water is within a range of 0.05 to 1.0µm.
摘要:
A chemical mechanical polishing aqueous dispersion, including: (A) inorganic particles; (B) at least one type of particles selected from the group consisting of organic particles and organic-inorganic composite particles; (C) at least one compound selected from the group consisting of quinolinecarboxylic acid, quinolinic acid, a divalent organic acid (excluding quinolinic acid), and a hydroxyl acid; (D) at least one compound selected from the group consisting of benzotriazole and benzotriazole derivatives; (E) an oxidizing agent; and (F) water, the chemical mechanical polishing aqueous dispersion containing the component (A) in an amount of 0.05 to 2.0 wt% and the component (B) in an amount of 0.005 to 1.5 wt%, having a ratio (W A /W B ) of the amount (W A ) of the component (A) to the amount (W B ) of the component (B) of 0.1 to 200, and having a pH of 1.0 to 5.0.
摘要:
A chemical mechanical polishing aqueous dispersion, including: (A) abrasives; (B) an organic acid; (C) benzotriazole or a benzotriazole derivative; (D) a poly(meth)acrylate; (E) an oxidizing agent; and (F) water, the abrasives (A) being included in the chemical mechanical polishing aqueous dispersion in an amount of 2 to 10wt%.
摘要:
The invention provides an aqueous dispersion for chemical mechanical polishing that is hard to putrefy, scarcely causes scratches, causes only small dishing and is suitable for used in a micro isolating step or a planarizing step of an inter layer dielectric in production of semiconductor devices. The aqueous dispersion for chemical mechanical polishing comprises ceria particles, a preservative composed of a compound having a heterocyclic structure containing a nitrogen atom and a sulfur atom in the ring, such as an isothiazolone compound, and an organic component such as organic abrasive grains composed of resin particles, a dispersing agent composed of a water-soluble polymer having a specific molecular weight or the like, a surfactant and/or an organic acid or a salt thereof contained in an aqueous medium. The ceria particles, preservative and organic component are contained in proportions of 0.1 to 20 % by mass, 0.001 to 0.2 % by mass and 0.1 to 30 % by mass, respectively, when the total proportion of the aqueous medium, ceria particles, preservative and organic component is 100 % by mass. The pH of this aqueous dispersion can be kept in a neutral range.
摘要:
The present invention provides an aqueous dispersion composition for chemical mechanical polishing which is useful for the manufacture of semiconductor devices, and which for polishing of different types of working films and barrier metal layers formed on semiconductor substrates, can achieve efficient polishing particularly of barrier metal surfaces and can give adequately flattened and high precision finished surfaces. The aqueous dispersion composition for chemical mechanical polishing has properties such that, when polishing a copper film, a tantalum layer and/or tantalum nitride layer and an insulating film under the same conditions, the ratio (R Cu /R Ta ) between the polishing rate of the copper film (R Cu ) and the polishing rate of the tantalum layer and/or tantalum nitride layer (R Ta ) is no greater than 1/20, and the ratio (R Cu /R In ) between the polishing rate of the copper film (R Cu ) and the polishing rate of the insulating film (R In ) is from 5 to 1/5. R Cu /R Ta is preferably no greater than 1/30, especially no greater than 1/40 and most preferably no greater than 1/50, while R Cu /R In is preferably 4-1/4, especially 3-1/3 and more preferably 2-1/2.
摘要:
The present invention provides production methods for aqueous dispersion slurry of inorganic particles which are so stable as not to increase in viscosity, gel or sediment even if stored for a long time and whose average particle diameter is 0.01 to 2 µm. As such production method, 2 production methods are available: A production method (A) having a preliminary dispersion process in which the inorganic particles are added to ad dispersed in an aqueous medium and a main dispersion process in which dispersed slurry out of the preliminary dispersion process are collided with each other under a pressure of 100 to 3,000 kg/cm 2 ; and A production method (B) in which the inorganic particles are added to an aqueous medium within a kneading tank of a kneader in which mixing blades rotate around respective subsidiary spindles and the subsidiary spindles revolves around a spindle and dispersed at a solid concentration of 30 to 70wt%.
摘要翻译:本发明提供了即使长时间贮存,平均粒径为0.01〜2μm,无粘性,凝胶或沉淀物稳定的无机粒子的水分散浆料的制造方法。 作为这样的制造方法,可以使用2种制造方法:将分散在水性介质中的无机粒子添加到预分散工序的制造方法(A)和从分散液中分散出的浆料的主分散方法 过程在100至3000kg / cm 2的压力下相互碰撞; 和A制造方法(B),其中将无机颗粒添加到混合机的捏合槽内的水性介质中,其中混合叶片围绕各自的副主轴旋转,并且副主轴围绕主轴旋转并以固体浓度30分散 至70wt%。