Rucker Kolls, Inc. Innovative Solutions for ATE Test Interface Products

Cantilever | Multi-site | Butterfly | Blades | Low Leakage | Custom PCB Design | Card Stiffeners/Rings | Specs. | Equip. | Spares

Using Cantilever technology with small to high pin count shipping probe cards in excess of 1500 probes per device, Rucker Kolls provides the options of multi-site, high temperature, bump, tight pad pitch, low leakage, and RF applications.

  • Cost-effective probing solutions
  • Optimized for long term use
  • Low to High pin count
  • Pad Pitch in line- 45 micron; staggered 35/70 microns
  • High temperature applications available
  • Bump/Array Probing
  • Applied Precision Probe Card Analyzer
  • Equipped Quality Assurance department





Minimum Pad Pitch: 45um in-line, 35/70um staggered

Minimum Bond Bad: <45um square

Electrical Specifications Measured on Probe Card Analyzer

  • Planarity and Alignment: +/-0.25 mils for flat pads
  • Contact Resistance Measured: <2 ohms at 25mA
  • Standard Leakage 10nA @ 5V

Probe Tip Depth: Probe depth is measured from probe tip to the bottom of the PCB 80-350 mils +/-5 mils. (This is dependent on temperature and probe layer count)

Balance Contact Force (BCF): 1.2 to 3.0 gm/mil of overdrive (Dependent on overall design of ring, pad pitch and pad size)

Tip Diameter: +/-.2 mils

Tip Length: +2/-1 mil

Edge Sensor: 2 wire, 2 wire isolated, 3 wire isolated

Edge Sensor Resistance: 1.0Ω max between the sensor probe and the switch

Probing Temperature: Ambient up to 150º C, High Temp 151°- 200º C

Probe Material:

  • Tungsten
  • Rhenium Tungsten (RhTungsten)
  • Hardened Beryllium Copper (HBeCu)
  • Beryllium Copper (BeCu)
  • Paliney7™
  • Newtek

Printed Circuit Boards Materials:

  • High Temp FR4 (Polyclad 370)
  • Gtek
  • Nelco High Performance (N4000-13)
  • Polyimide
  • Rogers™
  • Mixed Dielectrics
  • Flatness 5.0 mils per linear inch

PCB Design and Fabrication

BCF measurements available upon request

Copyright © 2012 Rucker Kolls Inc. 
Rucker Kolls, the Rucker Kolls logo and Butterfly design are trademarks or registered trademarks of Rucker Kolls Inc.
All other trademarks are the property of their respective owners.      Designed by