Probe stations allow a user to position electrical, optical or RF probes on a silicon wafer and connect them to a vector network analyzer so that the device can be tested. Using high-end cabling in a probe station is crucial: cables must be low loss, lightweight and both phase and amplitude stable against temperature, flexure and vibration. This is because once calibrated, the cable must function accurately for a long period of time. If the cable is not phase stable, it can quickly degrade a system, producing inaccurate data and requiring regular re-calibration. A further important consideration is the connectors, which help to keep the probe tip (which requires micrometer accuracy) stable.
Junkosha’s MWX001 cable assembly features the lowest insertion loss among any cables for measuring applications requiring flexibility and, as a result, is increasingly becoming the system of choice for probe stations. Cable insertion loss is minimized due to its cable structure, which is optimized for measurement up to 110 GHz. MWX001 also exhibits excellent phase stability, high quality signal transmission and strong form-sustainability. A safety-lock mechanism is available to preserve the 1.0 mm connector’s central pin.
Alongside radar, space and defense sectors, the key application area for MWX001 is 5G. Bringing reduced latency and improved data rate, 5G is designed to interconnect devices, machines and people closer than ever before - known as the Internet of Things. This enables a future of advanced technology including autonomous vehicles, smart cities and virtual reality, each bringing more sophisticated chipsets and thus increasing the requirement for efficient probe station testing and high-end cabling. It is here that Junkosha is innovative in delivering an optimized solution for these applications.