20 November 2012

Lake Shore boosts magnetic field and vacuum performance for CRX-VF cryogenic probe station

Lake Shore Cryotronics Inc of Westerville OH, USA, which makes scientific sensors, instruments and systems for precise measurement and control, has introduced updated specifications for its Model CRX-VF cryogen-free micro-manipulated probe station (launched in February), featuring increased maximum magnetic field, improved magnetic field at elevated sample temperatures, and improved vacuum performance.

The versatile Model CRX-VF is used for non-destructive testing of devices on full and partial wafers up to 51mm (2 inches) in diameter. Its superconducting magnet platform generates higher fields than are possible with an electromagnet-based station without the operating cost of liquid helium, says the firm. Suitable for measuring electrical, electro-optical, parametric, high Z and Hall effect, as well as DC, RF and microwave properties of materials and test devices, the CRX-VF is used to measure nanoscale electronics, quantum wires and dots, semiconductors, and spintronic devices.

The CRX-VF’s specifications have been improved and updated, making it more flexible. The maximum magnetic field capability at base temperature has been improved from ±2.25T to ±2.5T. In addition, the CRX-VF can now be operated up to ±2T from 10K to 400K and up to ±1T from 400K to 500K. Previously, only ±0.5T was possible above 400K and no magnetic field was possible above 450K.

Also, a new high-vacuum option has been added as a standard option for users whose applications require lower base pressures. The PS-HV-CPX improves vacuum to <5×10-7Torr with the station at base temperature (an improvement of two orders of magnitude over the standard vacuum configuration). The high-vacuum option is recommended for applications sensitive to contamination.

Tags: Lake Shore cryogenic

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