Gheorghe Almasi, Sameh Asaad, et al.
IBM J. Res. Dev
Paper
A Novel 24-GHz Bandwidth Coaxial Probe
Abstract
An electrical probe based on specially designed coaxial tips is shown to have 24-GHz bandwidth. It can be used to test high-speed signal propagation on planar or nonplanar chip or package interconnection structures with signal/ground pads as small as 50 µm. The detailed fabrication procedure, characterization, and use of the probe are presented. A variation of the design has 500-Ω input impedance and a bandwidth of 19 GHz. © 1990 IEEE
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