Method and apparatus for accelerated determination of electromigration characteristics of semiconductor wiring
    101.
    发明授权
    Method and apparatus for accelerated determination of electromigration characteristics of semiconductor wiring 失效
    用于加速确定半导体布线的电迁移特性的方法和装置

    公开(公告)号:US06603321B2

    公开(公告)日:2003-08-05

    申请号:US09999719

    申请日:2001-10-26

    Abstract: A method for determining the electromigration characteristics of a wiring structure in an integrated circuit device is disclosed. In an exemplary embodiment of the invention, the method includes configuring a defined test structure type for the integrated circuit device. The defined test structure type further includes a first line of wiring primarily disposed in a principal plane of a semiconductor substrate, and a second line of wiring connected to the first line of wiring. The second line of wiring is disposed in a secondary plane which is substantially parallel to the principal plane, with the first and second lines of wiring being connected by a via structure therebetween. A thermal coefficient of resistance for the first line of wiring and the via structure is determined, and a wafer-level stress condition is introduced in a first individual test structure of the defined test structure type. Then, at least one parameter value for is determined for the first individual test structure, which parameter value is used to predict a lifetime projection for the wiring structure in the integrated circuit device.

    Abstract translation: 公开了一种用于确定集成电路器件中的布线结构的电迁移特性的方法。 在本发明的示例性实施例中,该方法包括配置用于集成电路器件的定义的测试结构类型。 所确定的测试结构类型还包括主要布置在半导体衬底的主平面中的第一布线和连接到第一布线的第二布线。 布线的第二线设置在基本上平行于主平面的二次平面中,其中第一和第二布线通过它们之间的通孔结构连接。 确定第一线路和通孔结构的电阻的热系数,并且在限定的测试结构类型的第一单独测试结构中引入晶片级应力条件。 然后,对于第一单独测试结构确定至少一个参数值,哪个参数值用于预测集成电路器件中的布线结构的寿命投影。

    Lateral field emission devices
    102.
    发明授权
    Lateral field emission devices 失效
    侧面场发射装置

    公开(公告)号:US5233263A

    公开(公告)日:1993-08-03

    申请号:US722768

    申请日:1991-06-27

    CPC classification number: H01J9/025 H01J1/3042

    Abstract: Lateral cathode field emission devices and methods of fabrication are set forth. Conventional integrated circuit fabrication techniques are advantageously used to produce the lateral FEDs. Cathode tips on the order of several hundred angstroms are consistently obtained as well as exact spacing of the cathode to gate and cathode to anode. Various cathode and device configurations are described, including a circular field emission device. A single integrated structure having multiple cathodes and multiple gates is possible to perform various logic operations and/or enhance current output from the device. Multiple field effect devices, with cathodes disposed parallel or perpendicular to the substrate, are integrally coupled through a sharing of one or more metallization layers definitive of the elements of the devices. Significant advantages in current density and circuit layout can be obtained. Methods for fabricating the various devices are also explained.

    Abstract translation: 阐述了侧向阴极场发射器件及其制造方法。 传统的集成电路制造技术有利地用于产生横向FED。 一贯获得数百埃数量级的阴极尖端,以及阴极与栅极和阴极与阳极的精确间距。 描述了各种阴极和器件配置,包括圆形场致发射器件。 具有多个阴极和多个栅极的单个集成结构可以执行各种逻辑操作和/或增强来自该器件的电流输出。 具有平行或垂直于衬底设置的阴极的多个场效应器件通过共享设备元件的一个或多个金属化层而被一体地耦合。 可以获得电流密度和电路布局的显着优点。 还说明了制造各种装置的方法。

    Electromigration resistant via-to-line interconnect
    104.
    发明授权
    Electromigration resistant via-to-line interconnect 有权
    防电互连线路互连

    公开(公告)号:US08922022B2

    公开(公告)日:2014-12-30

    申请号:US13356013

    申请日:2012-01-23

    Abstract: A liner-to-liner direct contact is formed between an upper metallic liner of a conductive via and a lower metallic liner of a metal line below. The liner-to-liner contact impedes abrupt electromigration failures and enhances electromigration resistance of the metal interconnect structure. The at least one dielectric material portion may include a plurality of dielectric material portions arranged to insure direct contact of between the upper metallic liner and the lower metallic liner. Alternatively, the at least one dielectric material portion may comprise a single dielectric portion of which the area has a sufficient lateral overlap with the area of the conductive via to insure that a liner-to-liner direct contact is formed within the range of allowed lithographic overlay variations.

    Abstract translation: 在导电通孔的上金属衬套和下面的金属线的下金属衬垫之间形成衬管到衬垫直接接触。 衬套到衬垫接触件阻止突然的电迁移故障并增强金属互连结构的电迁移阻力。 所述至少一个电介质材料部分可以包括多个电介质材料部分,其布置成确保上金属衬垫和下金属衬垫之间的直接接触。 或者,所述至少一个介电材料部分可以包括单个电介质部分,其中该区域具有与导电通孔的面积的足够的横向重叠,以确保在允许的光刻的范围内形成衬管到衬垫的直接接触 重叠变化。

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