会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Selective silicidation process using a titanium nitride protective layer
    • 使用氮化钛保护层的选择性硅化工艺
    • US4920073A
    • 1990-04-24
    • US350429
    • 1989-05-11
    • Che-Chia WeiThomas E. TangJames G. BohlmanMonte A. Douglas
    • Che-Chia WeiThomas E. TangJames G. BohlmanMonte A. Douglas
    • H01L21/3205H01L21/28H01L21/321H01L21/336H01L23/52
    • H01L29/665H01L21/3211Y10S148/113Y10S148/147
    • The present invention provides a method for inhibiting the oxidation of a titanium layer during the direct reaction of the titanium with exposed silicon areas of an integrated circuit. In one embodiment of the present invention, a titanium nitride layer is formed on the surface of the titanium layer in the reactor where the titanium layer is deposited. The titanium nitride layer provides an effective barrier against oxidation. Thus, the formation of titanium dioxide is inhibited. In addition, in those areas where titanium nitride local interconnect is to be formed between diffused areas, the extra thickness provided by the top titanium nitride layer adds in the integrity of the conductive layers. By conducting the silicidation in a nitride atmosphere, diffusion of the nitride from the titanium nitride layer into the titanium layer and substitution of those lost nitrogen atoms by the atmosphere occurs thus providing a blocking layer for the formation of titanium silicide shorts.
    • 本发明提供了在钛与集成电路的暴露的硅区域的直接反应期间抑制钛层的氧化的方法。 在本发明的一个实施例中,在沉积钛层的反应器中的钛层的表面上形成氮化钛层。 氮化钛层提供了抗氧化的有效屏障。 因此,二氧化钛的形成被抑制。 此外,在要在扩散区域之间形成氮化钛局部互连的区域中,由顶部氮化钛层提供的额外的厚度增加了导电层的完整性。 通过在氮化物气氛中进行硅化,氮化物从钛氮化物层扩散到钛层中,并且由于大气中的那些失去的氮原子而被发生,从而提供用于形成硅化钛短路的阻挡层。