Coplanar probe tips Any pitch from 25 to 1250 microns Durable DC to 67 GHz Insertion loss less than 1.1db Return loss greater than 14db Measurement repeatability -80db Individually spring loaded contacts BeCu or Tungsten tips available Variety of Footprints Patented coaxial design Available in thirteen styles Custom configurations available Example: 67A-GSG-150-P is a Model 67A with Ground, Signal, Ground configuration with 150 microns between each contact mounted in a P style adaptor.