Point of use slurry dispensing system
    1.
    发明授权
    Point of use slurry dispensing system 失效
    使用点浆料分配系统

    公开(公告)号:US5478435A

    公开(公告)日:1995-12-26

    申请号:US356987

    申请日:1994-12-16

    IPC分类号: B01F3/12 B01F5/04 H01L21/00

    摘要: A point of use slurry dispensing system with controls for dilution, temperature and oxidizer/etchant/additive infusion. A slurry in unmixed form and a diluting agent are independently pumped to a pad on a CMP tool. Liquid heaters are used to heat the slurry and the diluting agent to a desirable temperature. The actual mixing occurs at the point of use on the pad or in a dispensing line just prior to the point of use. In some instances a third independent distribution line is used to dispense an oxidizer, etchant and/or chemical additive at or near the point of use.

    摘要翻译: 一种使用的浆料分配系统,其具有用于稀释,温度和氧化剂/蚀刻剂/添加剂输注的对照。 将未混合的浆料和稀释剂独立地泵送到CMP工具上的垫上。 液体加热器用于将浆料和稀释剂加热至所需温度。 在使用点之前,实际的混合发生在垫上或使用点处。 在一些情况下,使用第三独立分配线来在使用点处或附近分配氧化剂,蚀刻剂和/或化学添加剂。