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    • 3. 发明专利
    • POLISHING SOLUTION AND POLISHING METHOD
    • JP2001015461A
    • 2001-01-19
    • JP18391599
    • 1999-06-29
    • TOSHIBA CORP
    • SHIBA KATSUIKUKOSUKEGAWA HIROSHITATEYAMA YOSHIKUNI
    • B24B37/00C09K3/14H01L21/304
    • PROBLEM TO BE SOLVED: To fix the contact area between polishing particles and a film to be polished and, at the same time, to fix the polishing speed by improving the dispersibility of the polishing particles at the time of performing CMP, by adding a prescribed surface active agent to a polishing solution prepared by dispersing the polishing particles in pure water. SOLUTION: A polishing solution is prepared by dispersing polishing particles in pure water and, at the same time, adding a surface active agent to the water. The surface active agent can be polyvinyl pyrrolidone, cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, or ethylene glycol alginate. When the surface active agent is added to the polishing solution, the dispersibility of the polishing particles is improved at the time of performing CMP. In other words, when the polishing particles advance in such a way that the particles come into contact with the surface of a film to be polished and shave off the surface, almost all polishing particles are dispersed in the state of primary particles. As the CMP progresses, therefore, the contact area between the polishing particles and the film to be polished is fixed at a a larger value and, at the same time, the polishing speed is also fixed.
    • 8. 发明专利
    • Polishing device
    • 抛光装置
    • JPH11277403A
    • 1999-10-12
    • JP9697198
    • 1998-03-26
    • Ebara CorpToshiba Corp株式会社東芝株式会社荏原製作所
    • KIMURA NORIOISHII YUTATEYAMA YOSHIKUNI
    • B24B1/00B24B53/007B24B53/017H01L21/304B24B37/00
    • B24B53/017B24B53/02
    • PROBLEM TO BE SOLVED: To provide a polishing device in which both a contact type dressing unit using a brush or a diamond dresser and a non-contact type dressing unit using fluid jet are incorporated, and a conditioning method for a polishing cloth in this polishing device. SOLUTION: In a polishing device which is provided with a turntable 20 to which a polishing cloth 5 is attached, and a top ring 3, and which presses a semiconductor wafer 2 intervening between the turntable 20 and the top ring 3 under a specified pressure to polish the semiconductor wafer 2, a first dressing unit having a contact type dresser 10 for performing dressing of the polishing cloth 5 in contact with the surface of the polishing cloth 5, and a second dressing unit 16 having a non-contact type dresser 15 for performing dressing by spraying fluid jet to the surface of the polishing cloth 5, are provided.
    • 要解决的问题:提供一种研磨装置,其中包括使用刷子或金刚石修整器的接触式修整单元和使用流体射流的非接触式修整单元两者,以及在该抛光中的抛光布的调节方法 设备。 解决方案:在设置有安装有抛光布5的转盘20和顶环3的抛光装置中,并且在指定压力下将介于转台20和顶环3之间的半导体晶片2按压到 抛光半导体晶片2,第一修整单元具有接触型修整器10,用于进行与抛光布5的表面接触的抛光布5的修整;以及第二修整单元16,其具有非接触型修整器15,用于 提供了通过将喷射流体喷射到抛光布5的表面进行修整。