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    • 58. 发明申请
    • SIMPLIFIED BURIED PLATE STRUCTURE AND PROCESS FOR SEMICONDUCTOR-ON-INSULATOR CHIP
    • 半导体绝缘子芯片的简化平板结构和工艺
    • US20060202249A1
    • 2006-09-14
    • US10906808
    • 2005-03-08
    • Kangguo ChengRamachandra DivakaruniHerbert HoCarl Radens
    • Kangguo ChengRamachandra DivakaruniHerbert HoCarl Radens
    • H01L29/94
    • H01L21/84H01L27/10864H01L27/10867H01L27/1087H01L27/1203H01L29/66181H01L29/945
    • A structure is provided herein which includes an array of trench capacitors having at least portions disposed below a buried oxide layer of an SOI substrate. Each trench capacitor shares a common unitary buried capacitor plate which includes at least a portion of a first unitary semiconductor region disposed below the buried oxide layer. An upper boundary of the buried capacitor plate defines a plane parallel to a major surface of the substrate which extends laterally throughout the array of trench capacitors. In a particular embodiment, which starts from either an SOI or a bulk substrate, trenches of the array and a contact hole are formed simultaneously, such that the contact hole extends to substantially the same depth as the trenches. The contact hole preferably has substantially greater width than the trenches such that the conductive contact via can be formed simultaneously by processing used to form trench capacitors extending along walls of the trenches.
    • 本文提供了一种结构,其包括具有设置在SOI衬底的掩埋氧化物层下方的至少部分的沟槽电容器阵列。 每个沟槽电容器共享共同的单一掩埋电容器板,其包括设置在掩埋氧化物层下方的第一单元半导体区域的至少一部分。 掩埋电容器板的上边界限定平行于衬底的主表面的平面,横向延伸穿过整个沟槽电容器阵列。 在从SOI或体衬底开始的特定实施例中,阵列的沟槽和接触孔同时形成,使得接触孔延伸到与沟槽基本相同的深度。 接触孔优选地具有比沟槽更大的宽度,使得可以通过用于形成沿着沟槽的壁延伸的沟槽电容器的处理同时形成导电接触通孔。
    • 59. 发明申请
    • TRENCH CAPACITOR ARRAY HAVING WELL CONTACTING MERGED PLATE
    • TRENCH电容阵列具有良好的接触合并板
    • US20060163636A1
    • 2006-07-27
    • US10905808
    • 2005-01-21
    • Kangguo ChengBabar KhanCarl Radens
    • Kangguo ChengBabar KhanCarl Radens
    • H01L29/94
    • H01L29/945
    • According to an aspect of the invention, a structure is provided in which an array of trench capacitors includes a well contact to a merged buried plate diffusion region. The array, which is disposed in a substrate, includes a contact for receiving a reference potential. Each trench capacitor includes a node dielectric and a node conductor formed within the trench. Buried plate (BP) diffusions extend laterally outward from a lower portion of each trench of the array, the BP diffusions merging to form an at least substantially continuous BP diffusion region across the array. An isolation region extends over a portion of the BP diffusion region. A doped well region is formed within the substrate extending from a major surface of the substrate to a depth below a top level of the substantially continuous BP diffusion region. An electrical interconnection is also provided to the well region.
    • 根据本发明的一个方面,提供了一种结构,其中沟槽电容器阵列包括与合并的掩埋板扩散区的阱接触。 布置在基板中的阵列包括用于接收参考电位的触点。 每个沟槽电容器包括形成在沟槽内的节点电介质和节点导体。 掩埋板(BP)扩散从阵列的每个沟槽的下部横向向外延伸,BP扩散合并以在阵列上形成至少基本上连续的BP扩散区域。 隔离区域在BP扩散区域的一部分上延伸。 在衬底内形成掺杂阱区,该衬底从衬底的主表面延伸至低于基本上连续的BP扩散区的顶层的深度。 还向阱区域提供电互连。