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    • 3. 发明授权
    • MOS transistor and fabrication thereof
    • MOS晶体管及其制造
    • US07592231B2
    • 2009-09-22
    • US11461639
    • 2006-08-01
    • Po-Lun ChengChe-Hung Liu
    • Po-Lun ChengChe-Hung Liu
    • H01L21/336
    • H01L29/66628H01L21/7624H01L29/165H01L29/6653H01L29/6656H01L29/66636H01L29/7834H01L29/7843
    • A method of fabricating a MOS transistor is described. A substrate is provided, and then a composite layer for forming a gate structure and a carbon-containing mask material layer are formed thereon in turn, wherein the carbon-containing mask material layer is formed with a carbon-containing precursor gas and a reaction gas. The carbon-containing mask material layer and the composite layer are patterned into a carbon-containing hard mask layer and a gate structure, respectively. A spacer is formed on the sidewalls of the gate structure and the carbon-containing hard mask layer. A passivation layer is formed over the substrate, and then a portion of the passivation layer is removed to expose a portion of the substrate. A doped epitaxial layer is formed on the exposed portion of the substrate.
    • 描述制造MOS晶体管的方法。 提供基板,然后依次形成用于形成栅极结构和含碳掩模材料层的复合层,其中含碳掩模材料层由含碳前体气体和反应气体形成 。 将含碳掩模材料层和复合层分别图案化为含碳硬掩模层和栅极结构。 在栅极结构和含碳硬掩模层的侧壁上形成间隔物。 在衬底上形成钝化层,然后去除钝化层的一部分以露出衬底的一部分。 在衬底的暴露部分上形成掺杂的外延层。