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
    • 89. 发明申请
    • POLISH TO REMOVE TOPOGRAPHY IN SACRIFICIAL GATE LAYER PRIOR TO GATE PATTERNING
    • 在移动栅栏之前,移除邻近门控层的波形
    • US20110147812A1
    • 2011-06-23
    • US12646450
    • 2009-12-23
    • Joseph M. SteigerwaldUday ShahSeiichi MorimotoNancy Zelick
    • Joseph M. SteigerwaldUday ShahSeiichi MorimotoNancy Zelick
    • H01L29/78H01L21/336
    • H01L29/66795H01L21/28123H01L29/66545H01L29/785
    • Techniques are disclosed for fabricating FinFET transistors (e.g., double-gate, trigate, etc). A sacrificial gate material (such as polysilicon or other suitable material) is deposited on fin structure, and polished to remove topography in the sacrificial gate material layer prior to gate patterning. A flat, topography-free surface (e.g., flatness of 50 nm or better, depending on size of minimum feature being formed) enables subsequent gate patterning and sacrificial gate material opening (via polishing) in a FinFET process flow. Use of the techniques described herein may manifest in structural ways. For instance, a top gate surface is relatively flat (e.g., flatness of 5 to 50 nm, depending on minimum gate height or other minimum feature size) as the gate travels over the fin. Also, a top down inspection of gate lines will generally show no or minimal line edge deviation or perturbation as the line runs over a fin.
    • 公开了用于制造FinFET晶体管(例如,双栅极,三极管等)的技术。 牺牲栅极材料(例如多晶硅或其他合适的材料)沉积在鳍结构上,并且在栅极图案化之前抛光以去除牺牲栅极材料层中的形貌。 平坦的,无地形的表面(例如,取决于形成的最小特征的尺寸,平均度为50nm或更好)使得后续的栅极图案化和牺牲栅极材料在FinFET工艺流程中打开(经由抛光)。 使用本文描述的技术可以以结构方式表现。 例如,当栅极在翅片上行进时,顶栅表面相对平坦(例如,平均度为5至50nm,取决于最小栅极高度或其他最小特征尺寸)。 此外,栅极线的自顶向下检查通常将显示没有或最小的线边缘偏离或扰动,因为线在翅片上延伸。