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    • 1. 发明公开
    • 친환경 STI 공정용 연마 슬러리 및 이를 이용한 연마 방법
    • 环境友好的抛光浆料用于STI工艺和基板或使用其的波浪抛光方法
    • KR1020140059344A
    • 2014-05-16
    • KR1020120125345
    • 2012-11-07
    • 한양대학교 산학협력단주식회사 케이씨
    • 백운규배재영김정윤최낙현황준하
    • C09K3/14H01L21/304
    • The present invention relates to an environmentally-friendly polishing slurry for a STI process and a polishing method for a substrate or wafer using the same. The polishing slurry in the present invention has a narrow and uniform particle size distribution using monocrystalline polishing particles and is capable of minimizing micro scratch, alleviating dishing compared to dispersion due to positive electrostatic repulsion between the monocrystalline polishing particles, and improving cleaning property after polishing. In addition, the polishing slurry can secure long-term stability by adding a dispersion stabilizing agent, has excellent polishing rate and selection ratio, and can secure environmentally-friendly characteristics by the formation of neutral pH.
    • 本发明涉及用于STI工艺的环境友好型抛光浆料和使用其的基板或晶片的抛光方法。 本发明的研磨浆料使用单晶抛光颗粒具有窄且均匀的粒度分布,并且能够使由于单晶抛光颗粒之间的正静电排斥而产生的与分散相比的微刮痕减轻凹陷,并提高抛光后的清洁性能。 此外,抛光浆料可以通过添加分散稳定剂来确保长期稳定性,具有优异的抛光速率和选择比,并且可以通过形成中性pH来确保环境友好的特性。
    • 8. 发明授权
    • 연마 입자, 이를 이용한 연마 슬러리 및 그 제조 방법
    • 使用它的抛光谷物和抛光浆料及其制造方法
    • KR100803729B1
    • 2008-02-18
    • KR1020060092418
    • 2006-09-22
    • 주식회사 케이씨한양대학교 산학협력단
    • 김동현김대형홍석민서명원김용국황준하백운규박재근
    • C09K3/14H01L21/304
    • A method for preparing an abrasive particle, an abrasive particle prepared by the method, a method for preparing a polishing slurry by using the abrasive particle, and a polishing slurry prepared by the method are provided to increase the size of crystal and to control the growth of abnormal particles generated under the calcination at high temperature. A method for preparing an abrasive particle comprises the steps of (S110) drying a cerium precursor; (S120) filling the dried cerium precursor into a container and sealing it; and (S130) calcining the dried cerium precursor under the sealed state. Preferably the cerium precursor comprises cerium carbonate; the drying is carried out at a temperature lower than the temperature where a crystal starts to grow; and the calcination is carried out at a temperature of 500-900 deg.C.
    • 制备磨料颗粒的方法,通过该方法制备的磨料颗粒,通过使用磨料颗粒制备抛光浆料的方法和通过该方法制备的研磨浆料被提供以增加晶体的尺寸并控制生长 在高温煅烧下产生的异常颗粒。 制备磨粒的方法包括以下步骤:(S110)干燥铈前体; (S120)将干燥的铈前体填充到容器中并密封; 和(S130)在密封状态下煅烧干燥的铈前体。 优选地,铈前体包括碳酸铈; 干燥在比晶体开始生长的温度低的温度下进行, 并且煅烧在500-900℃的温度下进行。