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    • 41. 发明申请
    • METHOD AND APPARATUS TO OVERCOME ANOMALIES IN COPPER SEED LAYERS AND TO TUNE FOR FEATURE SIZE AND ASPECT RATIO
    • 方法和装置可以覆盖铜层中的异常,并调整特征尺寸和纵横比
    • WO01090446A2
    • 2001-11-29
    • PCT/US2001/015200
    • 2001-05-10
    • C25D5/10C25D5/18C25D7/12H01L21/28H01L21/288H05K3/42C25D
    • H01L21/76843C25D5/10C25D5/18C25D7/123H01L21/76868H01L21/76873H01L2221/1089H05K3/423
    • A method and apparatus for electrochemically depositing a metal into a high aspect ratio structure on a substrate are provided. In one aspect, a method is provided for processing a substrate including positioning a substrate having a first conductive material disposed thereon in a processing chamber containing an electrochemical bath, depositing a second conductive material on the first conductive material as the conductive material is contacted with the electrochemical bath by applying a plating bias to the substrate while immersing the substrate into the electrochemical bath, and depositing a third conductive material in situ on the second conductive material by an electrochemical deposition technique to fill the feature. The bias may include a charge density between about 20 mA sec/cm and about 160 mA sec/cm . The electrochemical deposition technique may include a pulse modulation technique.
    • 提供了一种在基板上将金属电化学沉积成高纵横比结构的方法和装置。 在一个方面,提供了一种用于处理衬底的方法,包括在包含电化学浴的处理室中定位其上具有第一导电材料的衬底,当第一导电材料与第一导电材料接触时,将第二导电材料沉积在第一导电材料上 通过在将基板浸入电化学浴中的同时将衬底施加电镀偏压并通过电化学沉积技术在第二导电材料上原位沉积第三导电材料来填充该特征,从而进行电化学浴。 该偏压可以包括约20mA / sec 2 / cm 2和约160mA / sec / cm 2之间的电荷密度。 电化学沉积技术可以包括脉冲调制技术。