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
    • 5. 发明授权
    • Plasma treatment method for PECVD silicon nitride films for improved
passivation layers on semiconductor metal interconnections
    • 用于PECVD氮化硅膜的等离子体处理方法,用于改善半导体金属互连上的钝化层
    • US5962344A
    • 1999-10-05
    • US999229
    • 1997-12-29
    • Yeur-Luen TuShiang-Peng ChengKwong-Jr TsaiLiang-Gi Yao
    • Yeur-Luen TuShiang-Peng ChengKwong-Jr TsaiLiang-Gi Yao
    • H01L21/318H01L21/441
    • H01L21/3185
    • A plasma treatment method used to form improved PECVD silicon nitride film passivation layers over metal interconnections on ULSI circuits is achieved. The process is carried out in a single PECVD reactor. After depositing a thin silicon oxide stress-release layer over the metal lines, a plasma-enhanced CVD silicon nitride layer is deposited, and subsequently a plasma treatment step is carried out on the silicon nitride layer. The use of a sufficiently thin silicon nitride layer eliminates photoresist trapping at the next photoresist process step that would otherwise be trapped in the voids (keyholes) that typically form in the silicon nitride passivation layer between the closely spaced metal lines, and can cause corrosion of the metal. The plasma treatment in He, Ar, or a mixture of the two, is then used to densify the silicon nitride layer and to substantially reduce pinholes that would otherwise cause interlevel metal shorts.
    • 实现了用于在ULSI电路上的金属互连上形成改进的PECVD氮化硅膜钝化层的等离子体处理方法。 该过程在单个PECVD反应器中进行。 在金属线上沉积薄氧化硅应力释放层之后,沉积等离子体增强的CVD氮化硅层,随后在氮化硅层上进行等离子体处理步骤。 使用足够薄的氮化硅层在下一个光刻胶工艺步骤消除光致抗蚀剂捕获,否则将被捕获在通常在紧密间隔的金属线之间的氮化硅钝化层中形成的空隙(键槽)中,并且可能导致腐蚀 金属。 然后,使用He,Ar中的等离子体处理或两者的混合物来使氮化硅层致密化并且基本上减少否则将引起层间金属短路的针孔。