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Langmuir-Style Probe

Wed, 06/19/2013 - 7:43am

Hiden Analytical ESPION Langmuir-Style ProbeHiden Analytical has introduced the ESPION Langmuir-style probe, a versatile commercial electrostatic probe. The probe automatically reports the critical plasma characteristics of electron density and energy distribution, electron temperature, ion density, plasma potential and floating potential, providing the rapid and accurate feedback essential for plasma-based process analysis and control.

Pulsed plasma can offer benefits over continuous wave plasma for tailoring of film growth and film properties. Fast on-board software-controlled timing circuitry with acquisition trigger resolution of 62.5 nsec enables ESPION to provide high-resolution segmented temporal analyses through a plasma pulse at pulse frequencies as high as 3 MHz. Other features include forced-air cooling of the probe tip, a programmable self-cleaning cycle for automatic probe tip decontamination, a high RF blocking impedance for optimum data integrity and an integral reference probe compensation electrode for cancellation of fluctuations due to low frequency drifting of the plasma potential. Probes may be operated in both static and dynamic modes, with fully programmable UHV-compatible linear motion drives offering linear travel ranges to 900 mm.

Hiden Analytical, www.HidenAnalytical.com

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