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.
