Cascade Microtech Announces Dual Infinity Probe Series

Provides excellent crosstalk characteristics, increases engineering productivity, and reduces cost of ownership

Beaverton, OR -- Cascade Microtech has introduced the Dual Infinity Probe series to 67 GHz. This probe provides the best isolation among currently available commercial probes between the two signals. This is a critical advantage in performing accurate two- or four-port calibrations. The Dual Infinity Probe is available in GSGSG, GSSG, and SGS configurations and in frequencies up to 67 GHz.

The Dual Infinity Probe ensures low and stable contact resistance on aluminum pads (typically <0.05 Ohms). The contact area of the Dual Infinity Probe tips is approximately 12 x 12 microns allowing probing of pads that are less than 50 x 50 microns in size.

Current Multiport System calibration error models require that each of the ports be uncoupled. A major step toward improving the accuracy of calibrations on multiport systems is the significant improvement in crosstalk achieved by the Dual Infinity Probe.

"The poor isolation between the signals of existing mechanical dual probes has been a major barrier in accurately characterizing Differential devices," Tariq Alam, RF segment manager, said. "The superior crosstalk characteristics of the Dual Infinity Probe ensures accurate calibrations. The Dual Infinity achieves low and stable contact resistance so that, for the first time, devices such as differential inductors or amplifiers can be characterized with absolute confidence in measurement results."

Source: Cascade Microtech