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    • 6. 发明申请
    • METHOD AND COMPOSITION FOR POLISHING A SUBSTRATE
    • 用于抛光底物的方法和组合物
    • US20070295611A1
    • 2007-12-27
    • US11764726
    • 2007-06-18
    • FENG LIUStan TsaiYongqi HuSiew NeoYan WangAlain DuboustLiang-Yuh Chen
    • FENG LIUStan TsaiYongqi HuSiew NeoYan WangAlain DuboustLiang-Yuh Chen
    • B23H9/00B23H7/00
    • B23H7/08B23H1/022B23H1/06
    • Polishing compositions and methods for removing conductive materials from a substrate surface are provided. In one aspect, a composition includes an acid based electrolyte system, one or more chelating agents, one or more corrosion inhibitors, one or more inorganic or organic acid salts, one or more pH adjusting agents to provide a pH between about 2 and about 10, a polishing enhancing material selected from the group of abrasive particles, one or more oxidizers, and combinations thereof, and a solvent. The composition may be used in an conductive material removal process including disposing a substrate having a conductive material layer formed thereon in a process apparatus comprising an electrode, providing the composition between the electrode and substrate, applying a bias between the electrode and the substrate, and removing conductive material from the conductive material layer. The ECMP polishing compositions and methods described herein improve the effective removal rate of materials from the substrate surface, such as copper, with a reduction in planarization type defects and yielding a desirable surface finish.
    • 提供了抛光组合物和从衬底表面去除导电材料的方法。 一方面,组合物包括酸性电解质体系,一种或多种螯合剂,一种或多种腐蚀抑制剂,一种或多种无机或有机酸盐,一种或多种pH调节剂,以提供约2至约10 ,选自磨料颗粒,一种或多种氧化剂及其组合的研磨增强材料和溶剂。 该组合物可用于导电材料去除工艺中,包括在包括电极的处理设备中设置其上形成有导电材料层的衬底,在电极和衬底之间提供组合物,在电极和衬底之间施加偏压,以及 从导电材料层去除导电材料。 本文所述的ECMP抛光组合物和方法提高了材料从衬底表面(例如铜)的有效去除速率,同时平坦化型缺陷减少并产生理想的表面光洁度。
    • 8. 发明授权
    • Control of removal profile in electrochemically assisted CMP
    • 电化学辅助CMP中去除曲线的控制
    • US06991526B2
    • 2006-01-31
    • US10244697
    • 2002-09-16
    • Lizhong SunLiang-Yuh ChenSiew NeoFeng Q. LiuAlain DuboustStan D. TsaiRashid Mavliev
    • Lizhong SunLiang-Yuh ChenSiew NeoFeng Q. LiuAlain DuboustStan D. TsaiRashid Mavliev
    • B24B1/00C25F7/00
    • B24B37/042B23H5/08
    • Aspects of the invention generally provide a method and apparatus for polishing a substrate using electrochemical deposition techniques. In one aspect, an apparatus for polishing a substrate comprises a counter-electrode and a pad positioned between a substrate and the counter-electrode and a pad positioned between a substrate and the counter-electrode. A dielectric insert is positioned between the counter-electrode and the substrate. The dielectric insert has a plurality of zones, each zone permitting a separate current density between the counter-electrode and the substrate. In another embodiment, an apparatus for polishing a substrate that include a conductive layer comprises a counter-electrode to the material layer. The counter-electrode comprises a plurality of electrically isolated conductive elements. An electrical connector is separately coupled to each of the conductive elements.
    • 本发明的各方面通常提供使用电化学沉积技术来抛光衬底的方法和装置。 一方面,用于研磨衬底的装置包括对电极和位于衬底和对电极之间的衬垫以及位于衬底和对电极之间的衬垫。 电介质插入件位于对电极和衬底之间。 电介质插入件具有多个区域,每个区域允许在对电极和衬底之间分开的电流密度。 在另一个实施例中,用于抛光包括导电层的衬底的装置包括与材料层相对的对电极。 对电极包括多个电绝缘的导电元件。 电连接器分别耦合到每个导电元件。