Methods of forming alternating phase shift masks having improved phase-shift tolerance
    3.
    发明申请
    Methods of forming alternating phase shift masks having improved phase-shift tolerance 失效
    形成具有改进的相移公差的交替相移掩模的方法

    公开(公告)号:US20050202322A1

    公开(公告)日:2005-09-15

    申请号:US10798908

    申请日:2004-03-11

    IPC分类号: G03C5/00 G03F1/00 G03F9/00

    CPC分类号: G03F1/30

    摘要: Methods for fabricating alternating phase shift masks or reticles used in semiconductor optical lithography systems. The methods generally include forming a layer of phase shift mask material on a handle substrate and patterning the layer to define recessed phase shift windows. The patterned layer is transferred from the handle wafer to a mask blank. The depth of the phase shift windows is determined by the thickness of the layer of phase shift mask material and is independent of the patterning process. In particular, the depth of the phase shift windows is not dependent upon the etch rate uniformity of an etch process across a surface of a mask blank.

    摘要翻译: 用于制造用于半导体光刻系统中的交替相移掩模或掩模版的方法。 所述方法通常包括在手柄基板上形成一层相移掩模材料,并且图案化该层以限定凹陷的相移窗口。 图案层从手柄晶片转移到掩模板。 相移窗口的深度由相移掩模材料层的厚度确定,并且与图案化工艺无关。 特别地,相移窗口的深度不依赖于通过掩模板的表面的蚀刻工艺的蚀刻速率均匀性。

    METHODS OF FABRICATING VERTICAL CARBON NANOTUBE FIELD EFFECT TRANSISTORS FOR ARRANGEMENT IN ARRAYS AND FIELD EFFECT TRANSISTORS AND ARRAYS FORMED THEREBY
    6.
    发明申请
    METHODS OF FABRICATING VERTICAL CARBON NANOTUBE FIELD EFFECT TRANSISTORS FOR ARRANGEMENT IN ARRAYS AND FIELD EFFECT TRANSISTORS AND ARRAYS FORMED THEREBY 有权
    制备垂直碳纳米管场效应晶体管的方法在阵列和场效应晶体管中的布置及其形成的阵列

    公开(公告)号:US20080044954A1

    公开(公告)日:2008-02-21

    申请号:US11926627

    申请日:2007-10-29

    IPC分类号: H01L21/8234

    摘要: A method for forming carbon nanotube field effect transistors, arrays of carbon nanotube field effect transistors, and device structures and arrays of device structures formed by the methods. The methods include forming a stacked structure including a gate electrode layer and catalyst pads each coupled electrically with a source/drain contact. The gate electrode layer is divided into multiple gate electrodes and at least one semiconducting carbon nanotube is synthesized by a chemical vapor deposition process on each of the catalyst pads. The completed device structure includes a gate electrode with a sidewall covered by a gate dielectric and at least one semiconducting carbon nanotube adjacent to the sidewall of the gate electrode. Source/drain contacts are electrically coupled with opposite ends of the semiconducting carbon nanotube to complete the device structure. Multiple device structures may be configured either as a memory circuit or as a logic circuit.

    摘要翻译: 一种形成碳纳米管场效应晶体管的方法,碳纳米管场效应晶体管的阵列,以及通过该方法形成的器件结构和器件结构阵列。 所述方法包括形成包括栅极电极层和各个与源极/漏极接触电连接的催化剂焊盘的堆叠结构。 栅极电极层被分成多个栅极电极,并且通过化学气相沉积工艺在每个催化剂焊盘上合成至少一个半导体碳纳米管。 完成的器件结构包括具有由栅极电介质覆盖的侧壁的栅电极和与栅电极的侧壁相邻的至少一个半导体碳纳米管。 源极/漏极触点与半导体碳纳米管的相对端电耦合以完成器件结构。 多个器件结构可以被配置为存储器电路或逻辑电路。

    Integrated circuit chip utilizing dielectric layer having oriented cylindrical voids formed from carbon nanotubes
    7.
    发明申请
    Integrated circuit chip utilizing dielectric layer having oriented cylindrical voids formed from carbon nanotubes 失效
    集成电路芯片利用由碳纳米管形成的具有取向的圆柱形空隙的电介质层

    公开(公告)号:US20060128137A1

    公开(公告)日:2006-06-15

    申请号:US11008800

    申请日:2004-12-09

    IPC分类号: H01L21/4763

    摘要: A dielectric in an integrated circuit is formed by creating oriented cylindrical voids in a conventional dielectric material. Preferably, voids are formed by first forming multiple relatively long, thin carbon nanotubes perpendicular to a surface of an integrated circuit wafer, by depositing a conventional dielectric on the surface to fill the area between the carbon nanotubes, and by then removing the carbon nanotubes to produce voids in place of the carbon nanotubes. A layer of dielectric and voids thus formed can be patterned or otherwise processed using any of various conventional processes. The use of a conventional dielectric material having numerous air voids substantially reduces the dielectric constant, leaving a dielectric structure which is both structurally strong and can be constructed compatibly with conventional processes and materials.

    摘要翻译: 集成电路中的电介质通过在常规电介质材料中产生取向的圆柱形空隙来形成。 优选地,通过首先通过在表面上沉积常规电介质以填充碳纳米管之间的区域,然后通过将碳纳米管去除以形成多个相对较长的薄碳纳米管,形成集成电路晶片的表面,形成空隙 产生代替碳纳米管的空隙。 由此形成的电介质层和空隙层可以使用各种常规方法中的任一种进行图案化或以其他方式处理。 使用具有多个空气空隙的常规电介质材料基本上降低了介电常数,留下了在结构上很强并且可以与常规工艺和材料相容地构造的电介质结构。