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    • 3. 发明申请
    • METHOD FOR GATE HEIGHT CONTROL IN A GATE LAST PROCESS
    • 门窗高度控制方法
    • US20100087056A1
    • 2010-04-08
    • US12489053
    • 2009-06-22
    • Sheng-Chen CHUNGKong-Beng THEIHarry CHUANG
    • Sheng-Chen CHUNGKong-Beng THEIHarry CHUANG
    • H01L21/28
    • H01L29/4966H01L21/28088H01L29/51H01L29/513H01L29/66545H01L29/78
    • A method is provided for fabricating a semiconductor device that includes providing a semiconductor substrate, forming a transistor in the substrate, the transistor having a gate structure that includes a dummy gate structure, forming an inter-layer dielectric (ILD), performing a first chemical mechanical polishing (CMP) to expose a top surface of the dummy gate structure, removing a portion of the ILD such that a top surface of the ILD is at a distance below the top surface of the dummy gate structure, forming a material layer over the ILD and dummy gate structure, performing a second CMP on the material layer to expose the top surface of the dummy gate structure, removing the dummy gate structure thereby forming a trench, forming a metal layer to fill in the trench, and performing a third CMP that substantially stops at the top surface of the ILD.
    • 提供了一种用于制造半导体器件的方法,该半导体器件包括提供半导体衬底,在衬底中形成晶体管,晶体管具有包括虚拟栅极结构的栅极结构,形成层间电介质(ILD),执行第一化学 机械抛光(CMP)以暴露伪栅极结构的顶表面,去除ILD的一部分,使得ILD的顶表面在虚拟栅极结构的顶表面下方的距离处,形成在 ILD和虚拟栅极结构,在材料层上执行第二CMP以暴露虚拟栅极结构的顶表面,去除伪栅极结构从而形成沟槽,形成金属层以填充沟槽,以及执行第三CMP 其基本上停留在ILD的顶表面。
    • 4. 发明申请
    • METHOD FOR N/P PATTERNING IN A GATE LAST PROCESS
    • 用于门窗最后过程中N / P图案的方法
    • US20100087038A1
    • 2010-04-08
    • US12364384
    • 2009-02-02
    • Sheng-Chen CHUNGKong-Beng THEIHarry CHUANG
    • Sheng-Chen CHUNGKong-Beng THEIHarry CHUANG
    • H01L21/8238
    • H01L21/823842H01L21/28052H01L21/28088H01L29/513H01L29/517H01L29/66545
    • A method is provided that includes providing a substrate, forming a first gate structure in a first region and a second gate structure in a second region, the first and second gate structures each including a high-k dielectric layer, a silicon layer, and a hard mask layer, where the silicon layer of the first gate structure has a different thickness than the silicon layer of the second gate structure, forming an interlayer dielectric (ILD) over the first and second gate structures, performing a chemical mechanical polishing (CMP) on the ILD, removing the silicon layer from the first gate structure thereby forming a first trench, forming a first metal layer to fill in the first trench, removing the hard mask layer and the silicon layer from the second gate structure thereby forming a second trench, and forming a second metal layer to fill in the second trench.
    • 提供了一种方法,其包括提供衬底,在第一区域中形成第一栅极结构和在第二区域中形成第二栅极结构,所述第一和第二栅极结构各自包括高k电介质层,硅层和 硬掩模层,其中第一栅极结构的硅层具有与第二栅极结构的硅层不同的厚度,在第一和第二栅极结构上形成层间电介质(ILD),执行化学机械抛光(CMP) 在所述ILD上,从所述第一栅极结构去除所述硅层,从而形成第一沟槽,形成第一金属层以填充所述第一沟槽,从所述第二栅极结构去除所述硬掩模层和所述硅层,由此形成第二沟槽 并且形成第二金属层以填充第二沟槽。