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    • 49. 发明申请
    • CRYSTALLINE ORIENTATION AND OVERHANG CONTROL IN COLLISION BASED RF PLASMAS
    • 基于碰撞的射频等离子体中的晶体定向和超调控制
    • US20130192980A1
    • 2013-08-01
    • US13749791
    • 2013-01-25
    • APPLIED MATERIALS, INC.
    • ZHENBIN GEALAN RITCHIEADOLPH MILLER ALLEN
    • C23C14/35
    • C23C14/35C23C14/046C23C14/345C23C14/3492C23C14/351H01J37/32706H01J37/3299H01J37/3405
    • Methods and apparatus for depositing a metal-containing layer on a substrate are provided herein. In some embodiments, a method of processing a substrate in a physical vapor deposition (PVD) chamber includes applying RF power at a VHF frequency to a target comprising a metal disposed in the PVD chamber above the substrate to form a plasma from a plasma-forming gas; optionally applying a DC power to the target to direct the plasma towards the target; sputtering metal atoms from the target using the plasma while maintaining a first pressure in the PVD chamber sufficient to ionize a predominant portion of the sputtered metal atoms; and controlling the plasma sheath voltage between the plasma and the substrate to form a metal-containing layer having a desired crystal structure and or desired morphology on feature structures.
    • 本文提供了在基底上沉积含金属层的方法和装置。 在一些实施例中,在物理气相沉积(PVD)室中处理衬底的方法包括将VHF频率的RF功率施加到包括设置在衬底上的PVD室中的金属的靶,以形成等离子体形成 加油站; 可选地向所述目标施加DC电力以将所述等离子体引向所述目标; 使用等离子体从靶中溅射金属原子,同时保持PVD室中的第一压力足以离子化主要部分的溅射金属原子; 以及控制等离子体和衬底之间的等离子体鞘电压,以在特征结构上形成具有所需晶体结构和/或所需形态的含金属层。