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InfinityXF™ redefines coaxial wafer probing with broadband performance up to 250 GHz, setting a new standard for high-performance S-parameter measurements. 

Building on FormFactor’s industry-leading Infinity platform, InfinityXF expands the single-sweep coaxial frequency range to DC–250 GHz by integrating new advanced capabilities. Developed in collaboration with Keysight, it supports their latest broadband PNA-X system and new 250 GHz coaxial frequency extension modules, utilizing Keysight’s proprietary 0.5 mm coaxial connectors. 

When combined with FormFactor’s fully integrated probing systems, InfinityXF enables fast setup and smooth, repeatable measurements across the entire frequency range. This eliminates the need for time-consuming setups that involve multiple frequency extenders, mixed coaxial and waveguide probes, and complex cross-band calibration techniques. As a result, InfinityXF delivers a streamlined and efficient solution for high-frequency wafer probing. 

This advanced probing system is ideally suited for broadband modeling validation measurements, high-speed multi-gigabit digital communication systems such as PAM4 448 Gb multi-channel modulation and PCIe Gen6, as well as other high-bandwidth digital signaling, high-frequency advanced wireless system development, and many other applications.

  • Ultra-compact probe body: Enables direct docking to Keysight’s NA5307A ensuring the shortest signal path and lowest insertion loss, while maintaining excellent return loss.
  • Solid Rhodium tips: Provide industry-leading low contact resistance.
  • Integrated alignment pin: Maintains probe planarity during probe mounting to Keysight NA5307A.

  • Excellent tip visibility:  Facilitates repeatable, precise tip placement.
  • Flexible tip options:  Available in GSG, GSGSG, and GSSG configurations with multiple pitch sizes.

  • Quick probe arm swapping:  Fully compatible with FormFactor’s modular RF probe arms and manual/motorized positioners. Enables fast and ergonomic change between different bands.
  • Innovative Storage Pod:  Horizontally mounted for safe, easy probe attachment and removal.

  • Wide temperature range: Operate between -40°C and +175°C with FormFactor’s EMI-shielded TopHat or IceShield™ for open-top setups.
  • Reliable differential measurements:  Enhanced by FormFactor’s upcoming WinCal 5.1 differential calibration algorithm.

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Storage Pod Mounting Demo

Brief demonstration of FormFactor’s Storage Pod and Modular RF Arm mounting solution.

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Autonomous RF Measurement Assistant

FormFactor’s Autonomous RF Measurement Assistant is the only solution in the market that enables true automatic, hands-free calibration and measurement of RF devices at multiple temperatures.