Abstract:
PURPOSE: A CMP slurry composition is provided to be able to minimize the dishing on the oxide film over a trench layer while maintaining the polishing speed ratio of the oxide film on the trench layer to the nitride film layer over 10. CONSTITUTION: A CMP slurry composition comprises metal oxide particles having a positive Zeta electric potential, zwitterionic compound, cationic surfactant, and ultra-pure water. The metal oxide particles are manufactured by calcination, flame oxidation or hydrothermal synthesis. The metal oxide particles having a positive Zeta electric potential have 70-150 nm of an average particle diameter and 10-50 m^2/g of a specific surface area. The metal oxide particles having a positive Zeta electric potential are ceria particles. A polishing method comprises a step of polishing a semiconductor wafer by using the CMP slurry composition. [Reference numerals] (AA) First grinding; (BB) Convex part; (CC) Concave part; (DD) Second grinding; (EE) Third grinding
Abstract:
본 발명은 실리콘 웨이퍼 연마용 슬러리 조성물에 관한 것으로 상세하게는 평균 입경이 50∼150nm인 콜로이드 실리카, pH 조절제 및 탈 이온수를 포함하는 조성에 세정성을 강화하기 위하여 알콜기가 부가된 아미노알킬기가 치환된 이종고리형 질소화합물과 유기산의 염을 구성 요소로 하는 것을 특징으로 하는 슬러리에 관한 것이다. 본 발명에 따른 연마용 슬러리를 사용하여 후면 연마 공정을 수행하면 연마 후 스테인 발생량이 크게 감소하고 패키지 후 신뢰성의 개선 효과를 제공할 수 있다. 실리콘 웨이퍼, 실리카. 고리형 아민류, 유기산의 염, 신뢰성
Abstract:
본 발명은 실리콘 웨이퍼 연마 공정에 사용하기 위한 연마용 슬러리 조성물에 관한 것으로서, 기존의 초순수, 콜로이드 실리카, pH 조절제 및 수용성 증점제를 함유하는 연마용 슬러리 조성물에 대하여 아세트산계의 킬레이트제와 인산계 킬레이트제 중 적어도 어느 하나의 킬레이트제를 첨가하여 제조될 수 있다. 본 발명에 의해 저장 안정성이 크게 개선되었고 특히 실리콘 웨이퍼 최종 연마용으로 사용하는 경우에 웨이퍼 표면의 헤이즈와 LPD 및 표면 거칠기를 크게 개선할 수 있다. 연마용 슬러리 조성물, 콜로이드 실리카, 수용성 증점제, 아세트산계의 킬레이트제, 인산계 킬레이트제
Abstract:
PURPOSE: A slurry composition for polishing the metal wire is provided, which is improved in polishing velocity, polishing uniformity and long-termed storage due to dispersion stability. CONSTITUTION: The slurry composition comprises 1-30 wt% of fine-powdered metal oxide; 0.01-0.5 wt% of an iodine-based compound; 0.25-2 wt% of hydrogen peroxide; 0.01-0.05 wt% of a phosphorus-based compound; 0.03-0.05 wt% of acetic acid; and the balance of deionized water. Preferably the metal oxide is silica (SiO2) and/or alumina (Al2O3); the iodine-based compound is at least one selected from the group consisting o-iodobenzoic acid, 4-iodobenzoic acid, o-iodoaniline, m-iodoaniline and p-iodoanisole; and the phosphorus-based compound is trimethyl phosphorous acid and/or triethyl phosphorous acid.
Abstract:
본 발명은 반도체 디바이스(device) 제조시 웨이퍼의 평탄화를 목적으로 하는 CMP(Chemical Mechanical Polishing/Planarization) 공정에 사용되는 연마용 슬러리 조성물에 관한 것으로, 보다 상세하게는 금속산화물 미분말, 요오드가 방향족 고리에 치환된 구조의 화합물, 비닐계 고분자 화합물, 과산화수소, 인계 화합물, 질산 및 탈이온수를 포함하는 금속배선 연마용 슬러리조성물에 관한 것이며, 본 발명의 연마용 슬러리 조성물을 사용하면 높은 연마속도와 우수한 연마균일도를 달성할 수 있으며, 연마시 발생하는 이로젼, 디싱의 문제점을 보완할 수 있고, 분산안정성이 높아 장기 보관이 용이하다.
Abstract:
PURPOSE: A slurry composition for polishing an insulation layer is provided, to reduce the remaining LPD(light point defect) and the pollution of a back surface of a wafer and to improve the polishing velocity and the polishing uniformity. CONSTITUTION: The slurry composition comprises 0.1-50 wt% of a metal oxide; 0.2-2 wt% of ammonia; 0.01-2 wt% of a t-alkyl ammonium base; 0.001-1 wt% of cellulose; and 0.05-1 wt% of an amine; and the balance of deionized water. The pH of the slurry composition is 10.5-11.5. Preferably the metal oxide is silica having a primary particle size of 10-80 nm, a specific surface area of 50-200 m2/g, a secondary particle size of 100-200 nm in an aqueous dispersion and a OH concentration on the surface of silica of 0.5-4/nm2 in an aqueous dispersion. Preferably the carbon number of alkyl group of the t-alkyl ammonium base is 1-3 and the cellulose has a molecular weight of 100,000 or more.
Abstract:
PURPOSE: A slurry composition for final polishing of silicon wafer is provided to increase polishing speed and improve polishing characteristics. CONSTITUTION: A slurry composition for final polishing of silicon wafer contains colloid silica of 2-10 weight% as an abrasive, ammonia of 0.5-1.5 weight%, and a hydroxide alkyl cellulose based water-soluble polymer thickener of 0.2-1.0 weight%. At this time, the grain diameter of the colloid silica is in the range of 60-80 nm. The last polishing slurry composition further contains an amine compound of 0.01-1 weight%, quaternary ammonium salt of 0.01-0.5 weight%, and deionized water. Preferably, the amine compound is one selected from a group consisting of monoethanolamine, diethylene glycolamine, diethanolamine, triethanolamine, (dimethylamino)ethoxyethanol, aminoethylethanolamine, or piperidineethanol.
Abstract:
PURPOSE: A CMP(Chemical Mechanical Polishing) slurry for polishing a copper line is provided to be capable of protecting a porous layer formed at the surface of an oxidized copper line for preventing additional oxidation and conserving a high polishing speed. CONSTITUTION: A CMP slurry for polishing a copper line contains metal oxide micro powder, peroxide compound, benzene based compound, ammonium salt or amine based compound, carboxyl based compound, and deionized water. Preferably, the CMP slurry is made of the metal oxide micro powder of 1-15 weight%, the peroxide compound of 0.1-10 weight%, the benzene based compound of 0.01-0.5 weight%, the ammonium salt or amine based compound of 0.01-0.5 weight%, the carboxyl based compound of 0.001-0.5 weight% and the deionized water.
Abstract:
PURPOSE: A slurry composition for chemical mechanical polishing of metal having enhanced polishing ability and improved stability and a manufacturing method thereof are provided to be capable of conserving a high polishing speed and improving chemical and distributional stability. CONSTITUTION: A CMP slurry composition contains metal oxide, hydrogen peroxide solution, iron compound, imidazole based compound and deionized water. At this time, the pH of the CMP slurry composition is in the range of 2-4. Preferably, the metal oxide is made of one selected from a group consisting of silica, aluminum, ceria, and titania. Preferably, the imidazole based compound is made of one selected from a group consisting of 4-imidazole methanol, 4-imidazole ethanol, and 4-imidazole carboxyl acid. Preferably, the pH of the composition is controlled by using nitric acid or acetic acid.
Abstract:
PURPOSE: Provided is a slurry composition suitable for CMP(Chemical Mechanical Polishing/Planarization) process of metal line, which shows uniform polishing capability and excellent dispersion stability when stored for a long time, and which overcomes erosion and recess problems occurring when polishing. CONSTITUTION: The composition comprises 1-30 wt% of metal oxide particles, 0.01-1 wt% of iodine-based compound, 0.25-2 wt% of hydrogen peroxide, 0.01-0.05 wt% of phosphorus-based compound, 0.01-1 wt% of polyacrylic acid, 0.3-0.5 wt% of nitric acid, and the rest of deionized water. The metal oxide is silica(SiO2) and/or alumina(Al2O3), the iodine-based compound is at least one selected from the group consisting of iodobenzene diacetate, iodobenzoic acid, and iodoaniline, and the phosphorus-based compound is trimethyl phosphite or triethyl phosphite.
Abstract translation:目的:提供适用于金属线的CMP(化学机械抛光/平面化)工艺的浆料组合物,其在长时间储存时具有均匀的研磨能力和优异的分散稳定性,并且克服了抛光时所产生的侵蚀和凹陷问题。 组成:该组合物包含1-30重量%的金属氧化物颗粒,0.01-1重量%的碘基化合物,0.25-2重量%的过氧化氢,0.01-0.05重量%的磷基化合物,0.01-1重量% %的聚丙烯酸,0.3-0.5重量%的硝酸和其余的去离子水。 金属氧化物是二氧化硅(SiO 2)和/或氧化铝(Al 2 O 3),碘系化合物是选自二苯乙酮,碘苯甲酸和碘苯胺中的至少一种,磷系化合物是亚磷酸三甲酯或 亚磷酸三乙酯