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    • 2. 发明授权
    • Method of dual EPI process for semiconductor device
    • 半导体器件的双重EPI工艺方法
    • US08609497B2
    • 2013-12-17
    • US12721399
    • 2010-03-10
    • Han-Pin ChungBor Chiuan HsiehShiang-Bau WangMing-Jie Huang
    • Han-Pin ChungBor Chiuan HsiehShiang-Bau WangMing-Jie Huang
    • H01L21/336
    • H01L21/823487H01L21/823807H01L21/823814H01L21/823821H01L21/82385H01L21/823864H01L21/845H01L29/6653H01L29/66628H01L29/66636H01L29/78H01L29/7848
    • The present disclosure provides a method of fabricating a semiconductor device that includes forming first and second gate structures over first and second regions of a substrate, respectively, forming spacers on sidewalls of the first and second gate structures, the spacers being formed of a first material, forming a capping layer over the first and second gate structures, the capping layer being formed of a second material different from the first material, forming a protection layer over the second region to protect the second gate structure, removing the capping layer over the first gate structure; removing the protection layer over the second region, epitaxially (epi) growing a semiconductor material on exposed portions of the substrate in the first region, and removing the capping layer over the second gate structure by an etching process that exhibits an etching selectivity of the second material to the first material.
    • 本公开提供一种制造半导体器件的方法,该半导体器件包括分别在衬底的第一和第二区域上形成第一和第二栅极结构,在第一和第二栅极结构的侧壁上形成间隔物,间隔物由第一材料形成 在所述第一和第二栅极结构上形成覆盖层,所述覆盖层由不同于所述第一材料的第二材料形成,在所述第二区域上形成保护层以保护所述第二栅极结构,在所述第一栅极结构上移除所述覆盖层 门结构; 在所述第二区域上去除所述保护层,在所述第一区域中外延(epi)在所述衬底的暴露部分上生长半导体材料,以及通过蚀刻工艺去除所述第二栅极结构上的所述覆盖层,所述蚀刻工艺显示所述第二区域的蚀刻选择性 材料到第一种材料。
    • 5. 发明授权
    • Multilayer hard mask
    • 多层硬掩模
    • US08372755B2
    • 2013-02-12
    • US12686866
    • 2010-01-13
    • Shiang-Bau WangHun-Jan Tao
    • Shiang-Bau WangHun-Jan Tao
    • H01L21/302H01L29/66
    • H01L21/823807H01L21/823814H01L21/823828H01L21/823864H01L29/165H01L29/665H01L29/6653H01L29/66636H01L29/7848
    • A method for fabricating a semiconductor device is disclosed. In an embodiment, the method may include providing a semiconductor substrate; forming gate material layers over the semiconductor substrate; forming a multi-layer hard mask layer over the gate material layers, wherein the multi-layer hard mask layer includes a plurality of film stacks, each film stack having a silicon oxide layer and a carbon-containing material layer, each film stack having a thickness equal to or less than about 10 angstrom; patterning the multi-layer hard mask layer, forming an opening of the multi-hard mask layer; etching the gate material layers within the opening of the multi-layer hard mask layer, forming a gate structure; performing a tilt-angle ion implantation process to the semiconductor substrate, wherein a first remaining thickness of the multi-layer hard mask layer is less than a first thickness; and thereafter performing an epitaxy growth to the semiconductor substrate, wherein a second remaining thickness of the multi-layer hard mask layer is greater than a second thickness.
    • 公开了一种制造半导体器件的方法。 在一个实施例中,该方法可以包括提供半导体衬底; 在所述半导体衬底上形成栅极材料层; 在所述栅极材料层上形成多层硬掩模层,其中所述多层硬掩模层包括多个膜堆叠,每个膜堆叠具有氧化硅层和含碳材料层,每个膜堆叠具有 厚度等于或小于约10埃; 图案化多层硬掩模层,形成多硬掩模层的开口; 蚀刻多层硬掩模层的开口内的栅极材料层,形成栅极结构; 对所述半导体衬底进行倾斜角度离子注入工艺,其中所述多层硬掩模层的第一剩余厚度小于第一厚度; 然后对所述半导体衬底进行外延生长,其中所述多层硬掩模层的第二剩余厚度大于第二厚度。
    • 8. 发明申请
    • ETCHING PROCESS TO AVOID POLYSILICON NOTCHING
    • 蚀刻过程避免多晶硅缺口
    • US20060154487A1
    • 2006-07-13
    • US11033912
    • 2005-01-11
    • Shiang-Bau WangLi-Te LinMing-Ching ChangRyan ChenYuan-Hung ChiuHun-Jan Tao
    • Shiang-Bau WangLi-Te LinMing-Ching ChangRyan ChenYuan-Hung ChiuHun-Jan Tao
    • H01L21/8234H01L21/302
    • H01L21/32137H01L21/31116H01L21/823828
    • A method for plasma assisted etching of a polysilicon containing gate electrode to reduce or avoid polysilicon notching at a base portion including providing a semiconducting substrate; forming a gate dielectric layer on the semiconducting substrate; forming a polysilicon layer on the gate dielectric; patterning a photoresist layer over the polysilicon layer for etching a gate electrode; carrying out a first plasma assisted etch process to etch through a major thickness portion of the polysilicon layer; carrying out a first inert gas plasma treatment; carrying out a second plasma assisted etch process to include exposing portions of the underlying gate dielectric layer; carrying out a second inert gas plasma treatment; and, carrying out a third plasma assisted etch process to fully expose the underlying gate dielectric layer adjacent either side of the gate electrodes.
    • 一种用于等离子体辅助蚀刻含多晶硅栅电极的方法,以减少或避免在包括提供半导体衬底的基极部分处的多晶硅刻蚀; 在所述半导体衬底上形成栅介电层; 在栅极电介质上形成多晶硅层; 在多晶硅层上形成光致抗蚀剂层以蚀刻栅电极; 执行第一等离子体辅助蚀刻工艺以蚀刻通过多晶硅层的主要厚度部分; 进行第一惰性气体等离子体处理; 执行第二等离子体辅助蚀刻工艺以包括暴露下面的栅介电层的部分; 进行第二次惰性气体等离子体处理; 并且执行第三等离子体辅助蚀刻工艺以完全暴露邻近栅电极的任一侧的底层栅介质层。