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    • 5. 发明申请
    • POLISHING LIQUID AND POLISHING METHOD
    • 抛光液和抛光方法
    • US20090087988A1
    • 2009-04-02
    • US12235475
    • 2008-09-22
    • Toshiyuki Saie
    • Toshiyuki Saie
    • H01L21/304C09K13/00
    • C09G1/02C09K3/1436C09K3/1463H01L21/3212
    • A polishing liquid is provided which is used for polishing a barrier layer of a semiconductor integrated circuit, the polishing liquid including surface modified particles that include organic polymer particles having at least one inorganic atom selected from the group consisting of Ti, Al, Zr and Si bonded to the organic polymer particles via an oxygen atom present on a surface of the organic polymer particles, an organic acid, an azole compound having at least two carboxyl groups, and an oxidizing agent, the polishing liquid having a pH of from 1 to 7; and a polishing method for polishing a barrier layer of a semiconductor integrated circuit is also provided.
    • 提供了用于研磨半导体集成电路的阻挡层的研磨液,所述研磨液含有表面改性粒子,其包含具有选自Ti,Al,Zr和Si中的至少一种无机原子的有机聚合物粒子 通过存在于有机聚合物颗粒的表面上的氧原子,有机酸,具有至少两个羧基的唑类化合物和氧化剂与有机聚合物颗粒结合,该抛光液的pH为1至7 ; 还提供了用于研磨半导体集成电路的阻挡层的抛光方法。
    • 8. 发明申请
    • Polishing liquid and polishing method
    • 抛光液和抛光方法
    • US20090215270A1
    • 2009-08-27
    • US12379331
    • 2009-02-19
    • Toshiyuki Saie
    • Toshiyuki Saie
    • H01L21/304C09K13/00
    • H01L21/3212C09G1/02C09K3/1463
    • A polishing liquid is provided which has good storage stability and is capable of inhibiting generation of scratching caused by aggregation of solid abrasive grains or the like during use. A polishing method using the polishing liquid is also provided. The polishing liquid includes: (a) an aqueous solution A including colloidal silica particles in an amount of from 5 mass % to 40 mass % with respect to the total mass of the aqueous solution A, and having a pH of from 1 to 7; and (b) an aqueous solution B including a quaternary ammonium cation, wherein the aqueous solution A and the aqueous solution B are separately prepared and mixed to provide the polishing liquid immediately before used in polishing.
    • 提供了一种抛光液,其具有良好的储存稳定性,并且能够在使用期间抑制由固体磨粒等的聚集引起的刮擦的产生。 还提供了使用抛光液的抛光方法。 抛光液包括:(a)相对于水溶液A的总质量,含有5质量%至40质量%的胶体二氧化硅颗粒的水溶液A,其pH为1至7; 和(b)包含季铵阳离子的水溶液B,其中分别制备和混合水溶液A和水溶液B以在抛光之前立即提供抛光液。