Link – Controlled Scrub

Controlled Scrub Solution for Leading Edge RF/Mixed-Signal/Analog

  • Benefits

    • reliable force biasing
    • no board wear
    • excellent probetip coplanarity
    • low resistance contact
    • self cleaning wipe
    • longer run times between cleaning
    • low inductance
    • no contamination (from plating) to pads
  • Key Features

    • single elastomer, two element contact
    • fixed mount eliminates board wear
    • compliant Link, assures contact
    • linear scrub to the device pad
    • controlled axis scrub
    • non-plated homogeneous alloy
    • low wear – longer mechanical life
    • compliant ground slug
    • close component placement
  • Applications

    • analog, RF/wireless, power, and digital
    • automotive, industrial, communications, consumer, computer, and commercial
    • SO, QFP, DFN, QFN/MLF, PLCC, CLCC

The Link Advantage

Today’s Link contactors are designed to standardize size and footprint. Standard designs maximize both the interchangeability of test Link contactors across a variety of applications and cost effectiveness. High performance Link contactors are being used to meet the increasing electrical requirements of today’s testing environment, without sacrificing mechanical performance.

The Link ball-in-a-socket design decouples contact pin motion from the load board pad. The decoupling protects the pad from rub and wear for extended load board pad life.

Link is recognized as the best in class for as a reliable, cost effective, easy to use, and easy to maintain alternative to traditional elastomer based contacting products.

Low Cost Alternative

Link is a lower cost, drop, in replacement contactor that improves overall equipment effectiveness (OEE) as measured in throughput, yield, mean-time-between-assist, with the reduction of the cost of test.

The Elastomer

The elastomer works as a supporting and biasing element and is made from a specially formulated silicone rubber compounds. This compound is engineered for optimizes electrical and mechanical performance over a wide temperature range. Contact biasing is controlled by the elastomer’s tensile and compressive characteristics. The elastomer fits into contact pin and body guide slots for maintaining planar contact height.

The Contact

The contact is a two-piece replaceable pin, configured with a stationary socket-foot (mount) and a link pin. The link pin and mount are connected by a ball socket. The link pin and mount are connected by a ball socket. The Link contact tips develop complex horizontal and rotational wipe actions against the leads of the device under test. Old style contacts are compound. The amount of contact wipe is controlled as too little wipe results in solder buildup and requires frequent cleaning of the contacts. Too much wipe lets solder accumulate in the test site area, causing a decrease in reliability. Excessive wiping action may also damage delicate leads of devices under test. The Link is made of homogeneous material that does not require plating. This provides increased reliability over plated probes.