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    • 82. 发明授权
    • Probe card, test method and test system for semiconductor wafers
    • 半导体晶圆的探针卡,测试方法和测试系统
    • US06246245B1
    • 2001-06-12
    • US09027880
    • 1998-02-23
    • Salman AkramC. Patrick DohertyWarren M. FarnworthDavid R. Hembree
    • Salman AkramC. Patrick DohertyWarren M. FarnworthDavid R. Hembree
    • G01R3102
    • G01R31/2886G01R1/07378
    • A probe card for testing a semiconductor wafer, a test method, and a test system employing the probe card are provided. The probe card includes: a substrate; patterns of pin contacts slidably mounted to the substrate; and a force applying member for biasing the pin contacts into electrical contact with die contacts on the wafer. In an illustrative embodiment the force applying member includes spring loaded electrical connectors in physical and electrical contact with the pin contacts. Alternately, the force applying member includes a compressible pad for multiple pin contacts, or separate compressible pads for each pin contact. A penetration depth of the pin contacts into the die contacts is controlled by selecting a spring force of the force applying member, and an amount of Z-direction overdrive of the pin contacts into the die contacts.
    • 提供了用于测试半导体晶片的探针卡,测试方法和采用探针卡的测试系统。 探针卡包括:基底; 引脚触点的图案可滑动地安装到基板上; 以及用于使所述销触点偏压以与所述晶片上的芯片触点电接触的施力部件。 在示例性实施例中,施力构件包括与销触点物理和电接触的弹簧加载的电连接器。 或者,施力构件包括用于多个针接触的可压缩垫,或者每个销接触的单独的可压缩垫。 通过选择力施加部件的弹簧力来控制销接触到模具接触部中的穿透深度,并且销的Z方向过驱动量接触到模具接触件中。
    • 83. 发明授权
    • Temporary package, method and system for testing semiconductor dice
having backside electrodes
    • 用于测试具有背面电极的半导体裸片的临时封装,方法和系统
    • US6060894A
    • 2000-05-09
    • US365676
    • 1999-08-02
    • David R. HembreeSalman AkramWarren M. FarnworthJames M. Wark
    • David R. HembreeSalman AkramWarren M. FarnworthJames M. Wark
    • G01R31/28G01R31/26
    • G01R31/2886
    • A temporary package, a method, and a system for testing a semiconductor die having a backside electrode are provided. The temporary package includes a base for retaining the die; a conductive member for electrically contacting the backside electrode on the die; and terminal contacts in electrical communication with the conductive member. The package also includes a force applying mechanism for biasing the conductive member against the backside electrode. A conductive path between the conductive member and terminal contacts can be through a wire, or through the force applying mechanism. In an alternate embodiment the temporary package includes a base and terminal contacts formed in the configuration of a conventional semiconductor package. A cover for the base can include a metal, carbon filled elastomer, conductive foam, or conductive adhesive conductive member. The conductive member can be adapted to simultaneously contact the backside electrode on the die, and a mating contact on the base in electrical communication with the terminal contact. In addition, the conductive member can function as a heat sink for cooling the die during the test procedures.
    • 提供了一种用于测试具有背面电极的半导体管芯的临时封装,方法和系统。 临时包装包括用于保持模具的基座; 导电构件,用于电接触模具上的背面电极; 以及与导电构件电连通的端子触点。 封装还包括用于将导电构件偏压抵靠背侧电极的施力机构。 导电构件和端子触点之间的导电路径可以通过导线或通过施力机构。 在替代实施例中,临时封装包括以常规半导体封装的结构形成的基极和端子触点。 用于基座的盖可以包括金属,填充碳的弹性体,导电泡沫或导电粘合剂导电构件。 导电构件可以适于同时接触模具上的背面电极,以及基座上与端子触点电连通的配合触点。 此外,导电构件可以用作在测试过程中用于冷却模具的散热器。
    • 84. 发明授权
    • Hybrid interconnect and system for testing semiconductor dice
    • 混合互连和半导体骰子测试系统
    • US6025731A
    • 2000-02-15
    • US821468
    • 1997-03-21
    • David R. HembreeSalman AkramWarren M. FarnworthAlan G. WoodJames M. WarkDerek Gochnour
    • David R. HembreeSalman AkramWarren M. FarnworthAlan G. WoodJames M. WarkDerek Gochnour
    • G01R1/04G01R1/073G01R1/73
    • G01R1/0466G01R1/0735
    • An interconnect is provided for making electrical connections with a semiconductor die. The interconnect includes a substrate having integrally formed contact members, configured to electrically contact corresponding contact locations on the die. The interconnect also includes a pattern of conductors formed separately from the substrate, and then bonded to the substrate, in electrical communication with the contact members. The conductors can be mounted to a multi layered tape similar to TAB tape, or alternately bonded directly to the substrate. In addition, each conductor can include an opening aligned with a corresponding contact member, and filled with a conductive material, such as a conductive adhesive or solder. The conductive material electrically connects the contact members and conductors, and provides an expansion joint to allow expansion of the conductors without stressing the contact members. Also provided are a system for testing dice that includes the interconnect, and a system for testing wafers wherein the interconnect is formed as a probe card.
    • 提供用于与半导体管芯进行电连接的互连。 互连包括具有整体形成的接触构件的基板,其构造成电接触管芯上相应的接触位置。 互连还包括与衬底分开形成的导体图案,然后与接触构件电气连接到衬底。 导体可以安装到类似于TAB带的多层胶带上,或者可以直接粘合到基底上。 此外,每个导体可以包括与对应的接触构件对准的开口,并且填充有诸如导电粘合剂或焊料的导电材料。 导电材料电连接接触构件和导体,并且提供膨胀接头以允许导体的膨胀而不会压紧接触构件。 还提供了一种用于测试包括互连的骰子的系统,以及用于测试晶片的系统,其中互连形成为探针卡。
    • 87. 发明授权
    • Calibration target for calibrating semiconductor wafer test systems
    • 用于校准半导体晶圆测试系统的校准目标
    • US06420892B1
    • 2002-07-16
    • US09685132
    • 2000-10-10
    • Andrew J. KrivyWarren M. FarnworthDavid R. HembreeSalman AkramJames M. WarkJohn O. Jacobson
    • Andrew J. KrivyWarren M. FarnworthDavid R. HembreeSalman AkramJames M. WarkJohn O. Jacobson
    • G01R3102
    • G01R35/005G01R1/073Y10T29/49197
    • A calibration target for calibrating semiconductor wafer test systems including probe testers and probe card analyzers is provided. Also provided are calibration methods using the calibration target, and a method for fabricating the calibration target. The calibration target includes a substrate with various three dimensional alignment features formed thereon. A first type of alignment feature includes a contrast layer and an alignment fiducial formed on a tip portion thereof. The contrast layer and alignment fiducial are configured for viewing by a viewing device of the probe card analyzer, or the test system, to achieve X-direction and Y-direction calibration. A second type of alignment feature includes a conductive layer formed on a tip portion thereof, which is configured to electrically engage a contact on a check plate of the probe card analyzer, or a probe contact on a probe card of the test system, to achieve Z-direction calibration. The alignment features can be formed by forming raised members on a silicon substrate, and depositing and etching metal layers on the raised members.
    • 提供了用于校准包括探针测试仪和探针卡分析仪在内的半导体晶片测试系统的校准目标。 还提供了使用校准目标的校准方法以及用于制造校准目标的方法。 校准目标包括其上形成有各种三维对准特征的基板。 第一类型的对准特征包括形成在其顶端部分上的对比层和对准基准。 对比层和对准基准被配置为通过探针卡分析仪或测试系统的观察装置进行观察,以实现X方向和Y方向校准。 第二类型的对准特征包括形成在其尖端部分上的导电层,其被配置为与探针卡分析器的支撑板上的触点或测试系统的探针卡上的探针接触电接合,以实现 Z方向校准。 对准特征可以通过在硅衬底上形成凸起构件,以及在凸起构件上沉积和蚀刻金属层来形成。