NenoVision fabricate a unique Atomic Force Microscope (AFM) LiteScope™ designed for easy integration into various Scanning Electron Microscopes (SEM), allowing in-situ collerative characterization of the sample in the nanoscale.
Our task in cooperation with NenoVision was to development of the piezoelectric controller in Atomic Force Microscope (AFM). The requirement was to design a fast controller based on the principles of medium-speed piezoelectric control systems, which would allow operation in Open-Loop and Close-Loop modes at least with a speed of 10 kHz.
This required the design of a sufficiently power HV amplifier with Strain-Gauges PID feedback. The power stage itself had to be treated with basic types of protection, control and monitoring systems to support the power supply with powerful thermal management, which works in an intelligent fan control mode to reduce their wear and noise reduction.
In addition, the system was required to support a minimum of three-axes without having to change the board design. This required the design of a dynamically adaptive PID and specific adjustment of the I2C bus. The whole system was eventually designed to support an unlimited number of externally adjustable PIDs and externally addressable I2C which ultimately allowed the controller to support at least a five-axes scanning system. In addition, the system supports a choice of two combinable options for monitoring and control via analog I/O and I2C.
Ground loop control
Precise signals control
Precise layout for noise reduction
Compression of components to reduce dimensions
PCB price reduction techniques could not be used due to client requirements.
NenoVision under the leadership of CEO Jan Neuman launched a unique Atomic Force Microscope LiteScope™, which supports integration in SEM at the same time and allows to measure during scanning of SEM. This is potential to revolutionize the way perform correlative analysis „AFM-in-SEM“ suported In-situ multimodal & time-effecient workflow.
In addition, NenoVision is the only company to market a device that makes openhardware DSP available.
By combining these properties with this piezoelectric controller is LiteScope™ unmatched truly a unique and powerful AFM device.