SELF-ALIGNED ARRAY CONTACT FOR MEMORY CELLS
    1.
    发明申请
    SELF-ALIGNED ARRAY CONTACT FOR MEMORY CELLS 失效
    自定义阵列与记忆体的联系

    公开(公告)号:US20050077562A1

    公开(公告)日:2005-04-14

    申请号:US10605590

    申请日:2003-10-10

    摘要: A method of forming bitlines for a memory cell array of an integrated circuit and conductive lines interconnecting transistors of an external region outside of the memory cell array is provided. The method includes patterning troughs in a dielectric region covering the memory cell array according to a first critical dimension mask. Bitline contacts to a substrate and bitlines are formed in the troughs. Thereafter, conductive lines are formed which consist essentially of at least one material selected from the group consisting of metals and conductive compounds of metals in horizontally oriented patterns patterned by a second critical dimension mask, wherein the conductive lines interconnect the bitlines to transistors of external circuitry outside of the memory cell array, the conductive lines being interconnected to the bitlines only at peripheral edges of the memory cell array.

    摘要翻译: 提供一种形成集成电路的存储单元阵列的位线的方法和将存储单元阵列外部的外部区域的晶体管互连的导线。 该方法包括根据第一临界尺寸掩模在覆盖存储单元阵列的电介质区域中图形化槽。 在槽中形成与基板和位线的位线接触。 此后,形成导线,其基本上由选自金属的金属和由第二关键尺寸掩模图案化的水平定向图案中的金属导电化合物组成的组中的至少一种材料组成,其中导线将位线互连到外部电路的晶体管 在存储单元阵列外部,导线仅在存储单元阵列的外围边缘处互连到位线。

    Pitcher-shaped active area for field effect transistor and method of forming same
    5.
    发明授权
    Pitcher-shaped active area for field effect transistor and method of forming same 失效
    投币型场效应晶体管及其形成方法

    公开(公告)号:US06960514B2

    公开(公告)日:2005-11-01

    申请号:US10803395

    申请日:2004-03-18

    IPC分类号: H01L21/762

    CPC分类号: H01L21/76224

    摘要: An improved pitcher-shaped active area for a field effect transistor that, for a given gate length, achieves an increase in transistor on-current, a decrease in transistor serial resistance, and a decrease in contact resistance. The pitcher-shaped active area structure includes at least two shallow trench insulator (STI) structures formed into a substrate that defines an active area structure, which includes a widened top portion with a larger width than a bottom portion. An improved fabrication method for forming the improved pitcher-shaped active area is also described that implements a step to form STI structure divots followed by a step to migrate substrate material into at least portions of the divots, thereby forming a widened top portion of the active area structure. The fabrication method of present invention forms the pitcher-shaped active area without the use of lithography, and therefore, is not limited by the smallest ground rules of lithography tooling.

    摘要翻译: 对于给定的栅极长度,对于晶体管导通电流的增加,晶体管串联电阻的降低和接触电阻的降低,用于场效应晶体管的改进的投池形有源区域。 投球形有源区结构包括形成在衬底中的至少两个浅沟槽绝缘体(STI)结构,其限定有源区域结构,其包括宽度比底部宽的加宽顶部部分。 还描述了一种用于形成改进的捕鱼器活性区域的改进的制造方法,其实现了形成STI结构图形的步骤,随后是将基板材料迁移到图案的至少部分中的步骤,从而形成活动的加宽顶部 区域结构。 本发明的制造方法在不使用光刻的情况下形成投手型有源区域,因此不受光刻工具的最小基准规则的限制。

    STI FORMATION IN SEMICONDUCTOR DEVICE INCLUDING SOI AND BULK SILICON REGIONS
    10.
    发明申请
    STI FORMATION IN SEMICONDUCTOR DEVICE INCLUDING SOI AND BULK SILICON REGIONS 失效
    在半导体器件中的STI形成,包括SOI和块状硅区域

    公开(公告)号:US20050282392A1

    公开(公告)日:2005-12-22

    申请号:US10710060

    申请日:2004-06-16

    摘要: Methods for forming or etching silicon trench isolation (STI) in a silicon-on-insulator (SOI) region and a bulk silicon region, and a semiconductor device so formed, are disclosed. The STI can be etched simultaneously in the SOI and bulk silicon regions by etching to an uppermost silicon layer using an STI mask, conducting a timed etch that etches to a desired depth in the bulk silicon region and stops on a buried insulator of the SOI region, and etching through the buried insulator of the SOI region. The buried insulator etch for this process can be done with little complexity as part of a hardmask removal step. Further, by choosing the same depth for both the bulk and SOI regions, problems with a subsequent CMP process are avoided. The invention also cleans up the boundary between the SOI and bulk regions where silicon nitride residuals may exist.

    摘要翻译: 公开了在绝缘体上硅(SOI)区域和体硅区域中形成或蚀刻硅沟槽隔离(STI)的方法以及如此形成的半导体器件。 可以通过使用STI掩模蚀刻到最上层的硅层,在SOI和体硅区域中同时蚀刻STI,进行蚀刻到体硅区域中期望的深度并停止在SOI区域的埋入绝缘体上的定时蚀刻 ,并蚀刻穿过SOI区域的埋层绝缘体。 用于该过程的掩埋绝缘体蚀刻可以以很少的复杂性作为硬掩模去除步骤的一部分来完成。 此外,通过为体区和SOI区域选择相同的深度,避免了后续CMP工艺的问题。 本发明还清除了可能存在氮化硅残留的SOI和体区之间的边界。