Applying this excellent electrical solution to integrated circuit test is a mechanical challenge. The targets that need to be contacted with two electrically-isolated, mechanically-independent probes are very small and closely spaced (and getting smaller and closer).
Kelvin contacting is more expensive initially. When Kelvin contactors are implemented, they cut costs in high-volume production tests.
There are many Kelvin contactors available, from different vendors and using different technologies. The choice should be made carefully.
Multitest’s Kelvin Tutorial explains how a Kelvin connections work and when they are needed. Additionally, it includes some practical recommendations and examples.
Download the comprehensive Kelvin Tutorial here: www.multitest.com/KelvinTutorial
