Used GATAN 691 #293826057 for sale

GATAN 691 is a state-of-the-art ion milling equipment providing sub-micron accuracy for precision milling of even the most complex metal and ceramic surfaces. It provides a unique combination of depth control, surface finish, and uniformity that make it an ideal choice for the most demanding nanofabrication applications. The system uses a high-power ion beam of nitrogen or argon energies up to 5 keV to shape metals and ceramics. The beam is scanned at a given angle over the surface of the sample. The ion beam bombards the surface at a constant frequency. This removes the surface material layer by layer. By adjusting the voltage and beam current, it is possible to control the surface finish, depth and uniformity of the milled features. The beam can be operated at variable frequency to provide higher surface resolution for intricate patterns. 691 is equipped with precision stages providing precise control over position and orientation of the sample. The stages also allow to keep up the sample at different angles and allow for dynamic orientation. The stages are integrated with a high resolution digital microscope. This enables quick and accurate alignment of the sample with respect to the ion beam. GATAN 691 also comes with a range of software analysers. These include the Surface Profiles Tool for analyzing the final surface finish of the sample and the Contour Profiles Tool for visualizing the contour of the milled features. 691 is also equipped with a powerful 3D visualization unit that helps operators to identify details that are not visible to the unaided eye. Overall, GATAN 691 ion milling machine is an indispensable tool for advanced nanofabrication applications that require submicron accuracy and high-quality performance. It is suitable for high throughput fabrication, and ensures fast turnaround times.