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    • 3. 发明授权
    • Method of manufacturing low resistance and low junction leakage contact
    • 制造低电阻和低结漏电接触的方法
    • US5899741A
    • 1999-05-04
    • US40432
    • 1998-03-18
    • Fouriers TsengPeng-Cheng Chou
    • Fouriers TsengPeng-Cheng Chou
    • H01L21/285H01L21/768H01L21/4763
    • H01L21/76862H01L21/76843H01L21/76855H01L21/76861H01L21/76877
    • A new method of forming an amorphous silicon glue layer in the formation of a contact is described. Semiconductor device structures are provided in and on a semiconductor substrate. An insulating layer is deposited overlying the semiconductor device structures. An opening is etched through the insulating layer to contact one of the semiconductor device structures. An amorphous silicon layer is deposited overlying the insulating layer and within the opening. Ions are implanted into the amorphous silicon layer whereby grain sizes within the amorphous silicon layer are reduced. Native oxide on the surface of the amorphous silicon layer is removed. A titanium/titanium nitride layer is deposited overlying the amorphous silicon layer. A metal layer is deposited overlying the titanium/titanium nitride layer and filling the opening. The substrate is annealed whereby the titanium layer reacts with the amorphous silicon layer and the silicon semiconductor substrate to form titanium silicide. The metal layer is etched back or patterned to complete metallization in the fabrication of an integrated circuit device.
    • 描述了在形成接触时形成非晶硅胶层的新方法。 半导体器件结构设置在半导体衬底中和半导体衬底上。 绝缘层沉积在半导体器件结构上。 通过绝缘层蚀刻开口以接触半导体器件结构之一。 非晶硅层沉积在绝缘层上并且在开口内。 将离子注入到非晶硅层中,由此减小非晶硅层内的晶粒尺寸。 去除非晶硅层表面上的天然氧化物。 覆盖在非晶硅层上的钛/氮化钛层被沉积。 沉积覆盖在钛/氮化钛层上并填充开口的金属层。 将衬底退火,由此钛层与非晶硅层和硅半导体衬底反应形成硅化钛。 金属层被回蚀或图案化以在集成电路器件的制造中完成金属化。