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    • 1. 发明授权
    • Methods of selectively forming a material using parylene coating
    • 使用聚对二甲苯涂层选择性地形成材料的方法
    • US08945305B2
    • 2015-02-03
    • US12872608
    • 2010-08-31
    • Eugene P. Marsh
    • Eugene P. Marsh
    • C30B25/04H01L21/02C23C16/02C23C16/04C23C16/455H01L21/285H01L21/768
    • H01L21/02118C23C16/0227C23C16/042C23C16/045C23C16/45534H01L21/02175H01L21/02181H01L21/02186H01L21/02192H01L21/02194H01L21/0228H01L21/02304H01L21/28562H01L21/32051H01L21/76879
    • Methods for depositing a material, such as a metal or a transition metal oxide, using an ALD (atomic layer deposition) process and resulting structures are disclosed. Such methods include treating a surface of a semiconductor structure periodically throughout the ALD process to regenerate a blocking material or to coat a blocking material that enables selective deposition of the material on a surface of a substrate. The surface treatment may reactivate a surface of the substrate toward the blocking material, may restore the blocking material after degradation occurs during the ALD process, and/or may coat the blocking material to prevent further degradation during the ALD process. For example, the surface treatment may be applied after performing one or more ALD cycles. Accordingly, the presently disclosed methods enable in situ restoration of blocking materials in ALD process that are generally incompatible with the blocking material and also enables selective deposition in recessed structures.
    • 公开了使用ALD(原子层沉积)工艺和所得结构沉积诸如金属或过渡金属氧化物的材料的方法。 这样的方法包括在整个ALD过程中周期性地处理半导体结构的表面以再生阻挡材料或涂覆能够选择性地将材料沉积在衬底的表面上的阻挡材料。 表面处理可以使基材的表面朝向阻挡材料再活化,可以在ALD工艺期间退化后恢复阻挡材料,和/或可以涂覆阻挡材料以防止在ALD工艺期间的进一步降解。 例如,可以在执行一个或多个ALD循环之后施加表面处理。 因此,目前公开的方法使得能够在ALD工艺中原位恢复通常与阻挡材料不相容的阻挡材料,并且还使得能够在凹陷结构中进行选择性沉积。