Contact signal blocks for transmission of high-speed signals

Details Contact signal blocks for transmission of high-speed signals Contact signal blocks for transmission of high-speed signals

2007-11-13

2007-11-13

Tang, Minh N. (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

Reexamination Certificate

active

11341165

ABSTRACT:
A contact signal block for facilitating connections between test equipment and a device under test (DUT) is described. The contact signal block includes a plurality of ground layers and a plurality of signal transmission layers disposed between and alternating with the ground layers. Each signal transmission layer includes a plurality of signal conductors. Each signal conductor forms a controlled-impedance transmission line with adjacent ground layers and is terminated at a first end in a plurality of signal spring probes. A plurality of non-conductive spacer structures separates the ground layers and signal transmission layers and maintains a substantially constant separation between the ground layers and the signal conductors. The ground layers and the signal conductors are primarily separated by a medium having a loss tangent of approximately 0.002 and a dielectric constant of less than about 1.5.

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