Deriving the best configurations from 3D electromagnetic simulation, Multitest offers custom differential contactors for individual semiconductor test apps. The company can optimize materials and probes for specific impedances. Accordingly, differential signals reduce signal amplitudes, increase speeds, reduce I/O counts, and enable high immunity to noise, resulting in product size and power reductions. MULTITEST ELEKTRONISCHE SYSTEME GmbH, Rosenheim, Germany. +49-(0)8031-406 0.