Sealing layer of a field effect transistor
    1.
    发明授权
    Sealing layer of a field effect transistor 有权
    场效应晶体管的密封层

    公开(公告)号:US08258588B2

    公开(公告)日:2012-09-04

    申请号:US12757241

    申请日:2010-04-09

    CPC分类号: H01L29/4983 H01L29/6656

    摘要: An exemplary structure for a gate structure of a field effect transistor comprises a gate electrode; a gate insulator under the gate electrode having footing regions on opposing sides of the gate electrode; and a sealing layer on sidewalls of the gate structure, wherein a thickness of lower portion of the sealing layer overlying the footing regions is less than a thickness of upper portion of the sealing layer on sidewalls of the gate electrode, whereby the field effect transistor made has almost no recess in the substrate surface.

    摘要翻译: 场效应晶体管的栅极结构的示例性结构包括栅电极; 栅电极下方的栅极绝缘体,在栅电极的相对侧具有基极区域; 以及在所述栅极结构的侧壁上的密封层,其中覆盖所述基底区域的所述密封层的下部的厚度小于所述栅极电极的侧壁上的所述密封层的上部的厚度,由此所述场效应晶体管 在基板表面几乎没有凹陷。

    Patterning methodology for uniformity control
    4.
    发明授权
    Patterning methodology for uniformity control 有权
    均匀性控制的图案化方法

    公开(公告)号:US08273632B2

    公开(公告)日:2012-09-25

    申请号:US13281862

    申请日:2011-10-26

    IPC分类号: H01L21/336

    摘要: The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a patternable layer over a substrate. The method includes forming a first layer over the patternable layer. The method includes forming a second layer over the first layer. The second layer is substantially thinner than the first layer. The method includes patterning the second layer with a photoresist material through a first etching process to form a patterned second layer. The method includes patterning the first layer with the patterned second layer through a second etching process to form a patterned first layer. The first and second layers have substantially different etching rates during the second etching process. The method includes patterning the patternable layer with the patterned first layer through a third etching process.

    摘要翻译: 本公开提供了制造半导体器件的方法。 该方法包括在衬底上形成可图案化层。 该方法包括在可图案层上形成第一层。 该方法包括在第一层上形成第二层。 第二层比第一层薄得多。 该方法包括通过第一蚀刻工艺用光致抗蚀剂材料图案化第二层以形成图案化的第二层。 该方法包括通过第二蚀刻工艺将具有图案化的第二层的第一层图案化以形成图案化的第一层。 第一和第二层在第二蚀刻工艺期间具有显着不同的蚀刻速率。 该方法包括通过第三蚀刻工艺对具有图案化的第一层的图案化层进行图案化。

    Patterning methodology for uniformity control
    5.
    发明授权
    Patterning methodology for uniformity control 有权
    均匀性控制的图案化方法

    公开(公告)号:US08053323B1

    公开(公告)日:2011-11-08

    申请号:US12938571

    申请日:2010-11-03

    IPC分类号: H01L21/336

    摘要: The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a patternable layer over a substrate. The method includes forming a first layer over the patternable layer. The method includes forming a second layer over the first layer. The second layer is substantially thinner than the first layer. The method includes patterning the second layer with a photoresist material through a first etching process to form a patterned second layer. The method includes patterning the first layer with the patterned second layer through a second etching process to form a patterned first layer. The first and second layers have substantially different etching rates during the second etching process. The method includes patterning the patternable layer with the patterned first layer through a third etching process.

    摘要翻译: 本公开提供了制造半导体器件的方法。 该方法包括在衬底上形成可图案化层。 该方法包括在可图案层上形成第一层。 该方法包括在第一层上形成第二层。 第二层比第一层薄得多。 该方法包括通过第一蚀刻工艺用光致抗蚀剂材料图案化第二层以形成图案化的第二层。 该方法包括通过第二蚀刻工艺将具有图案化的第二层的第一层图案化以形成图案化的第一层。 第一和第二层在第二蚀刻工艺期间具有显着不同的蚀刻速率。 该方法包括通过第三蚀刻工艺对具有图案化的第一层的图案化层进行图案化。

    Patterning Methodology for Uniformity Control
    6.
    发明申请
    Patterning Methodology for Uniformity Control 有权
    均匀性控制的图案化方法

    公开(公告)号:US20120108046A1

    公开(公告)日:2012-05-03

    申请号:US13281862

    申请日:2011-10-26

    IPC分类号: H01L21/28 H01L21/308

    摘要: The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a patternable layer over a substrate. The method includes forming a first layer over the patternable layer. The method includes forming a second layer over the first layer. The second layer is substantially thinner than the first layer. The method includes patterning the second layer with a photoresist material through a first etching process to form a patterned second layer. The method includes patterning the first layer with the patterned second layer through a second etching process to form a patterned first layer. The first and second layers have substantially different etching rates during the second etching process. The method includes patterning the patternable layer with the patterned first layer through a third etching process.

    摘要翻译: 本公开提供了制造半导体器件的方法。 该方法包括在衬底上形成可图案化层。 该方法包括在可图案层上形成第一层。 该方法包括在第一层上形成第二层。 第二层比第一层薄得多。 该方法包括通过第一蚀刻工艺用光致抗蚀剂材料图案化第二层以形成图案化的第二层。 该方法包括通过第二蚀刻工艺将具有图案化的第二层的第一层图案化以形成图案化的第一层。 第一和第二层在第二蚀刻工艺期间具有显着不同的蚀刻速率。 该方法包括通过第三蚀刻工艺对具有图案化的第一层的图案化层进行图案化。

    Method of reducing a critical dimension of a semiconductor device
    7.
    发明授权
    Method of reducing a critical dimension of a semiconductor device 有权
    降低半导体器件临界尺寸的方法

    公开(公告)号:US07759239B1

    公开(公告)日:2010-07-20

    申请号:US12435552

    申请日:2009-05-05

    IPC分类号: H01L21/3205

    摘要: The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a gate layer over a substrate, forming a hard mask layer over a gate layer, forming a first material layer over the hard mask layer, forming a patterned photoresist layer having an opening over the first material layer, etching the first material layer through a cycle including forming a second material layer over the semiconductor device and etching the first and second material layers, repeating the cycle until the hard mask layer is exposed by a reduced opening, the reduced opening formed in a last cycle, etching the hard mask layer beneath the second opening to expose the gate layer, and patterning the gate layer using the hard mask layer. An etching selectivity of the first and second material layers is smaller than an etching selectivity of the second material layer and the photoresist layer.

    摘要翻译: 本公开提供了制造半导体器件的方法。 该方法包括在衬底上形成栅极层,在栅极层上形成硬掩模层,在硬掩模层上形成第一材料层,形成在第一材料层上具有开口的图案化光刻胶层,蚀刻第一材料 层,其包括在半导体器件上形成第二材料层并蚀刻第一和第二材料层,重复该循环,直到硬掩模层通过减小的开口暴露,在最后一个循环中形成的减小的开口,蚀刻硬 掩模层以暴露栅极层,并且使用硬掩模层图案化栅极层。 第一和第二材料层的蚀刻选择性小于第二材料层和光致抗蚀剂层的蚀刻选择性。

    Fin field effect transistors
    10.
    发明授权
    Fin field effect transistors 有权
    Fin场效应晶体管

    公开(公告)号:US08748989B2

    公开(公告)日:2014-06-10

    申请号:US13407507

    申请日:2012-02-28

    IPC分类号: H01L21/70

    摘要: The disclosure relates to a fin field effect transistor (FinFET). An exemplary structure for a FinFET comprises a substrate comprising a major surface; a plurality of first trenches having a first width and extending downward from the substrate major surface to a first height, wherein a first space between adjacent first trenches defines a first fin; and a plurality of second trenches having a second width less than first width and extending downward from the substrate major surface to a second height greater than the first height, wherein a second space between adjacent second trenches defines a second fin.

    摘要翻译: 本发明涉及鳍状场效应晶体管(FinFET)。 FinFET的示例性结构包括:包括主表面的衬底; 多个第一沟槽,具有第一宽度并从所述衬底主表面向下延伸到第一高度,其中相邻第一沟槽之间的第一空间限定第一鳍片; 以及多个第二沟槽,其具有小于第一宽度的第二宽度并且从所述衬底主表面向下延伸到大于所述第一高度的第二高度,其中相邻第二沟槽之间的第二空间限定第二鳍片。