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    • 18. 发明授权
    • Making discrete power connections to a space transformer of a probe card
assembly
    • 将离散电源连接到探针卡组件的空间变压器
    • US6050829A
    • 2000-04-18
    • US920255
    • 1997-08-28
    • Benjamin N. EldridgeGary W. GrubeIgor Y. KhandrosGaetan L. Mathieu
    • Benjamin N. EldridgeGary W. GrubeIgor Y. KhandrosGaetan L. Mathieu
    • G01R1/073G01R31/02
    • G01R1/07378
    • By segregating at least a substantial portion of the power connections to the space transformer component (506, 700, 800) from the signal connections thereto, constraints on the interposer component (504) may be relaxed. This is particularly advantageous in the context of probing one or more high power semiconductor components. The technique of the present invention provides for a plurality of signals (including power and ground) to be inserted into an electronic component such as a space transformer both from a one main surface thereof and an edge (periphery) thereof to an opposite main surface thereof. The space transformer includes pads (522, 706, 810) for engaging, by means of spring elements (524), component (508) to be tested and includes exposed edge pads (750, 804, 854) for engagement by a flexible cable (752) for transmission of power and ground signals to the space transformer. The system also includes an interposer (504) having resilient contacts (514, 516) for electrically interconnecting a probe card (502) to the space transformer (506).
    • 通过将至少大部分的功率连接与其间的信号连接隔离到空间变压器部件(506,700,800),可以放宽对插入件部件(504)的约束。 这在探测一个或多个大功率半导体部件的上下文中是特别有利的。 本发明的技术提供了从其一个主表面和其边缘(周边)到其相对的主表面插入到诸如空间变换器的电子部件中的多个信号(包括电源和接地) 。 空间变压器包括用于通过弹簧元件(524)与待测试的部件(508)接合的垫(522,706,810),并且包括暴露的边缘焊盘(750,804,854),用于通过柔性电缆 752)用于将电力和地面信号传输到空间变压器。 该系统还包括具有用于将探针卡(502)与空间变换器(506)电互连的弹性触点(514,516)的插入器(504)。