Structures and methods for monitoring dielectric reliability with through-silicon vias
    6.
    发明授权
    Structures and methods for monitoring dielectric reliability with through-silicon vias 有权
    通过硅通孔监测介质可靠性的结构和方法

    公开(公告)号:US09404953B2

    公开(公告)日:2016-08-02

    申请号:US14068273

    申请日:2013-10-31

    Abstract: Embodiments of the present invention provide a variety of structures and method for detecting abnormalities in the back-end-of-line (BEOL) stack and BEOL structures located in close proximity to through-silicon vias (TSVs) in a 3D integrated chip. The detected abnormalities may include stress, strain, and damage that will affect metallization continuity, interfacial integrity within a metal level, proximity accuracy of the TSV placement, and interlevel dielectric integrity and metallization-to-TSV dielectric integrity. Additionally, these structures in conjunction with each other are capable of determining the range of influence of the TSV. That is, how close to the TSV that a BEOL line (or via) needs to be in order to be influenced by the TSV.

    Abstract translation: 本发明的实施例提供了用于检测位于紧邻3D集成芯片中的硅通孔(TSV)的后端行(BEOL)堆叠和BEOL结构中的异常的各种结构和方法。 检测到的异常可能包括将影响金属化连续性,金属层内的界面完整性,TSV放置的接近精度以及层间电介质完整性和金属化至TSV电介质完整性的应力,应变和损伤。 另外,这些结构彼此结合能够确定TSV的影响范围。 也就是说,BEV线(或通路)需要为TSV所影响的TSV的接近程度。

    NON-PLANAR FIELD EFFECT TRANSISTOR TEST STRUCTURE AND LATERAL DIELECTRIC BREAKDOWN TESTING METHOD
    7.
    发明申请
    NON-PLANAR FIELD EFFECT TRANSISTOR TEST STRUCTURE AND LATERAL DIELECTRIC BREAKDOWN TESTING METHOD 有权
    非平面场效应晶体管测试结构和横向电介质断层测试方法

    公开(公告)号:US20150198654A1

    公开(公告)日:2015-07-16

    申请号:US14154505

    申请日:2014-01-14

    CPC classification number: G01R31/2623

    Abstract: Disclosed are test structures and methods for non-planar field effect transistors. The test structures comprise test device(s) on an insulator layer. Each device comprises semiconductor fin(s). Each fin has a first portion comprising a pseudo channel region at one end and a second portion comprising a diffusion region positioned laterally adjacent to the first portion. A gate with sidewall spacers can be adjacent to the first portion of the fin(s). A first contact can be on the insulator layer adjacent the end of the fin(s). A second contact can be on the second portion of the fin(s) such that the gate is positioned laterally between the contacts. Measurements taken when the first contact is biased against the gate are compared to measurements taken when the second contact is biased against the gate in order to assess lateral dielectric breakdown between the gate and first contact independent of gate dielectric breakdown.

    Abstract translation: 公开了非平面场效应晶体管的测试结构和方法。 测试结构包括绝缘体层上的测试装置。 每个装置包括半导体鳍片。 每个翅片具有包括在一端的伪通道区域的第一部分和包括位于横向相邻于第一部分的扩散区域的第二部分。 具有侧壁间隔件的门可以与鳍的第一部分相邻。 第一接触可以在与鳍的端部相邻的绝缘体层上。 第二触点可以在鳍的第二部分上,使得栅极横向定位在触点之间。 将第一接触件偏压到栅极时进行的测量与第二接触件相对于栅极偏置时的测量值进行比较,以便评估栅极和第一接触件之间的横向电介质击穿,而与栅极绝缘击穿无关。

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